diff --git a/.github/workflows/stainless-action.yml b/.github/workflows/stainless-action.yml
index 0de4a72b..895b84bb 100644
--- a/.github/workflows/stainless-action.yml
+++ b/.github/workflows/stainless-action.yml
@@ -37,6 +37,7 @@ jobs:
           org: ${{ env.STAINLESS_ORG }}
           project: ${{ env.STAINLESS_PROJECT }}
           oas_path: ${{ env.OAS_PATH }}
+          guess_config: true
 
   merge:
     if: github.event.action == 'closed' && github.event.pull_request.merged == true
diff --git a/.stainless/stainless.yml b/.stainless/stainless.yml
index 5817a8ab..c99d3bf3 100644
--- a/.stainless/stainless.yml
+++ b/.stainless/stainless.yml
@@ -10,7 +10,7 @@ organization:
   # and headings.
   name: grid
   # Link to your API documentation.
-  docs: ''
+  docs: 'grid.lightspark.com'
   # Contact email for bug reports, questions, and support requests.
   contact: support@lightspark.com
 
@@ -229,6 +229,11 @@ resources:
       list: get /tokens
       retrieve: get /tokens/{tokenId}
       delete: delete /tokens/{tokenId}
+  exchange_rates:
+    methods:
+      list:
+        endpoint: get /exchange-rates
+        paginated: false
 
 settings:
   # All generated integration tests that hit the prism mock http server are marked
@@ -326,6 +331,86 @@ openapi:
       args:
         unionPath: AllErrors
         enumProperty: code
+    # ── customerType: IndividualCustomerFields / BusinessCustomerFields ──
+    - command: remove
+      reason: >-
+        Remove inline customerType enums from customer fields schemas to avoid
+        conflicting types when allOf merges them with base schemas (Customer,
+        CustomerCreateRequest, CustomerUpdateRequest) that define customerType
+        via the shared CustomerType $ref
+      args:
+        target:
+          - "$.components.schemas.IndividualCustomerFields.properties"
+          - "$.components.schemas.BusinessCustomerFields.properties"
+        keys: [ "customerType" ]
+
+    # ── accountType: common account info schemas ──
+    - command: remove
+      reason: >-
+        Remove inline accountType enums from common account info schemas to
+        avoid conflicting types when allOf merges them with
+        BaseExternalAccountInfo or BasePaymentAccountInfo, which define
+        accountType via shared $ref enums
+      args:
+        target:
+          - "$.components.schemas.UsAccountInfo.properties"
+          - "$.components.schemas.ClabeAccountInfo.properties"
+          - "$.components.schemas.PixAccountInfo.properties"
+          - "$.components.schemas.IbanAccountInfo.properties"
+          - "$.components.schemas.UpiAccountInfo.properties"
+          - "$.components.schemas.NgnAccountInfo.properties"
+          - "$.components.schemas.CadAccountInfo.properties"
+          - "$.components.schemas.GbpAccountInfo.properties"
+          - "$.components.schemas.PhpAccountInfo.properties"
+          - "$.components.schemas.SgdAccountInfo.properties"
+          - "$.components.schemas.SparkWalletInfo.properties"
+          - "$.components.schemas.LightningInfo.properties"
+          - "$.components.schemas.SolanaWalletInfo.properties"
+          - "$.components.schemas.TronWalletInfo.properties"
+          - "$.components.schemas.PolygonWalletInfo.properties"
+          - "$.components.schemas.BaseWalletInfo.properties"
+        keys: [ "accountType" ]
+
+    # ── sourceType: transaction and quote source schemas ──
+    - command: remove
+      reason: >-
+        Remove inline sourceType enums from transaction and quote source
+        allOf variants to avoid conflicting types with their base schemas
+        which define sourceType via shared $ref enums
+      args:
+        target:
+          - "$.components.schemas.AccountTransactionSource.allOf[1].properties"
+          - "$.components.schemas.UmaAddressTransactionSource.allOf[1].properties"
+          - "$.components.schemas.AccountQuoteSource.allOf[1].properties"
+          - "$.components.schemas.RealtimeFundingQuoteSource.allOf[1].properties"
+        keys: [ "sourceType" ]
+
+    # ── destinationType: transaction and quote destination schemas ──
+    - command: remove
+      reason: >-
+        Remove inline destinationType enums from transaction and quote
+        destination allOf variants to avoid conflicting types with their
+        base schemas which define destinationType via shared $ref enums
+      args:
+        target:
+          - "$.components.schemas.AccountTransactionDestination.allOf[1].properties"
+          - "$.components.schemas.UmaAddressTransactionDestination.allOf[1].properties"
+          - "$.components.schemas.AccountDestination.allOf[1].properties"
+          - "$.components.schemas.UmaAddressDestination.allOf[1].properties"
+          - "$.components.schemas.ExternalAccountDetailsDestination.allOf[1].properties"
+        keys: [ "destinationType" ]
+
+    # ── beneficiaryType: beneficiary schemas ──
+    - command: remove
+      reason: >-
+        Remove inline beneficiaryType enums from beneficiary allOf variants
+        to avoid conflicting types with BaseBeneficiary which defines
+        beneficiaryType via a shared $ref enum
+      args:
+        target:
+          - "$.components.schemas.IndividualBeneficiary.allOf[1].properties"
+          - "$.components.schemas.BusinessBeneficiary.allOf[1].properties"
+        keys: [ "beneficiaryType" ]
 
 errors:
   union:
@@ -339,3 +424,4 @@ diagnostics:
   ignored:
     Schema/ObjectHasNoProperties:
       - pagination.0.response.data.items
+    Schema/EnumHasOneMember: true
diff --git a/.stainless/workspace.json b/.stainless/workspace.json
index 1af98546..7cdd3c13 100644
--- a/.stainless/workspace.json
+++ b/.stainless/workspace.json
@@ -5,6 +5,9 @@
   "targets": {
     "typescript": {
       "output_path": "../sdks/grid-typescript"
+    },
+    "kotlin": {
+      "output_path": "../sdks/grid-kotlin"
     }
   }
 }
diff --git a/mintlify/openapi.yaml b/mintlify/openapi.yaml
index 5a660fe2..21c98521 100644
--- a/mintlify/openapi.yaml
+++ b/mintlify/openapi.yaml
@@ -38,6 +38,8 @@ tags:
     description: Endpoints to trigger test cases in sandbox
   - name: API Tokens
     description: Endpoints to programmatically manage API tokens
+  - name: Exchange Rates
+    description: Endpoints for retrieving cached foreign exchange rates. Rates are cached for approximately 5 minutes and include platform-specific fees.
 paths:
   /config:
     get:
@@ -140,6 +142,126 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/Error501'
+  /exchange-rates:
+    get:
+      summary: Get exchange rates
+      description: |
+        Retrieve cached exchange rates for currency corridors. Returns FX rates that are cached
+        for approximately 5 minutes. Rates include fees specific to your platform for authenticated requests.
+
+        **Filtering Options:**
+        - Filter by source currency to get all available destination corridors
+        - Filter by specific destination currency or currencies
+        - Provide a sending amount to get calculated receiving amounts
+      operationId: getExchangeRates
+      tags:
+        - Exchange Rates
+      security:
+        - BasicAuth: []
+      parameters:
+        - name: sourceCurrency
+          in: query
+          description: Filter by source currency code (e.g., USD)
+          required: false
+          schema:
+            type: string
+          example: USD
+        - name: destinationCurrency
+          in: query
+          description: Filter by destination currency code(s). Can be repeated for multiple currencies (e.g., &destinationCurrency=INR&destinationCurrency=GBP)
+          required: false
+          style: form
+          explode: true
+          schema:
+            type: array
+            items:
+              type: string
+          example:
+            - INR
+        - name: sendingAmount
+          in: query
+          description: Sending amount in the smallest unit of the source currency (e.g., cents for USD).  If no amount is provided, the default is 10000 in the sending currency smallest unit.
+          required: false
+          schema:
+            type: integer
+            format: int64
+            minimum: 0
+            default: 10000
+          example: 10000
+      responses:
+        '200':
+          description: Successful operation
+          content:
+            application/json:
+              schema:
+                type: object
+                required:
+                  - data
+                properties:
+                  data:
+                    type: array
+                    description: List of exchange rates matching the filter criteria
+                    items:
+                      $ref: '#/components/schemas/ExchangeRate'
+              examples:
+                allRatesFromUSD:
+                  summary: All exchange rates from USD
+                  value:
+                    data:
+                      - sourceCurrency:
+                          code: USD
+                          decimals: 2
+                          name: US Dollar
+                          symbol: $
+                        sourcePaymentRail: RTP
+                        sendingAmount: 10000
+                        destinationCurrency:
+                          code: INR
+                          decimals: 2
+                          name: Indian Rupee
+                          symbol: ₹
+                        destinationPaymentRail: UPI
+                        receivingAmount: 1650000
+                        exchangeRate: 82.5
+                        fees:
+                          fixed: 100
+                        updatedAt: '2025-02-05T12:00:00Z'
+                      - sourceCurrency:
+                          code: USD
+                          decimals: 2
+                          name: US Dollar
+                          symbol: $
+                        sourcePaymentRail: RTP
+                        sendingAmount: 10000
+                        destinationCurrency:
+                          code: EUR
+                          decimals: 2
+                          name: Euro
+                          symbol: €
+                        destinationPaymentRail: SEPA_INSTANT
+                        receivingAmount: 18500
+                        exchangeRate: 0.925
+                        fees:
+                          fixed: 10
+                        updatedAt: '2025-02-05T12:00:00Z'
+        '400':
+          description: Bad request - Invalid parameters
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error400'
+        '401':
+          description: Unauthorized
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error401'
+        '500':
+          description: Internal service error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error500'
   /customers:
     post:
       summary: Add a new customer
@@ -4113,6 +4235,84 @@ components:
           type: object
           description: Additional error details
           additionalProperties: true
+    Currency:
+      type: object
+      properties:
+        code:
+          type: string
+          description: Three-letter currency code (ISO 4217) for fiat currencies. Some cryptocurrencies may use their own ticker symbols (e.g. "BTC" for Bitcoin, "USDC" for USDC, etc.)
+          example: USD
+        name:
+          type: string
+          description: Full name of the currency
+          example: United States Dollar
+        symbol:
+          type: string
+          description: Symbol of the currency
+          example: $
+        decimals:
+          type: integer
+          description: Number of decimal places for the currency
+          minimum: 0
+          example: 2
+    ExchangeRateFees:
+      type: object
+      description: Fees associated with an exchange rate
+      properties:
+        fixed:
+          type: integer
+          format: int64
+          description: Fixed fee in the smallest unit of the sending currency (e.g., cents for USD)
+          minimum: 0
+          example: 100
+    ExchangeRate:
+      type: object
+      description: Exchange rate information for a currency corridor
+      required:
+        - sourceCurrency
+        - destinationCurrency
+        - destinationPaymentRail
+        - receivingAmount
+        - exchangeRate
+        - fees
+        - updatedAt
+      properties:
+        sourceCurrency:
+          $ref: '#/components/schemas/Currency'
+        sourcePaymentRail:
+          type: string
+          description: The payment rail used for the source (e.g., ACCOUNT, RTP)
+          example: ACCOUNT
+        sendingAmount:
+          type: integer
+          format: int64
+          description: The sending amount in the smallest unit of the source currency (e.g., cents for USD). Echoed back from the request if provided.
+          minimum: 0
+          example: 10000
+        destinationCurrency:
+          $ref: '#/components/schemas/Currency'
+        destinationPaymentRail:
+          type: string
+          description: The payment rail used for the destination (e.g., UPI, SEPA_INSTANT, MOBILE_MONEY, FASTER_PAYMENTS)
+          example: UPI
+        receivingAmount:
+          type: integer
+          format: int64
+          description: The receiving amount in the smallest unit of the destination currency
+          minimum: 0
+          example: 1650000
+        exchangeRate:
+          type: number
+          description: Number of destination currency units per sending currency unit
+          exclusiveMinimum: 0
+          example: 82.5
+        fees:
+          $ref: '#/components/schemas/ExchangeRateFees'
+        updatedAt:
+          type: string
+          format: date-time
+          description: Timestamp when this exchange rate was last refreshed
+          example: '2025-02-05T12:00:00Z'
     CustomerType:
       type: string
       enum:
@@ -4537,26 +4737,6 @@ components:
         mapping:
           INDIVIDUAL: '#/components/schemas/IndividualCustomerUpdateRequest'
           BUSINESS: '#/components/schemas/BusinessCustomerUpdateRequest'
-    Currency:
-      type: object
-      properties:
-        code:
-          type: string
-          description: Three-letter currency code (ISO 4217) for fiat currencies. Some cryptocurrencies may use their own ticker symbols (e.g. "BTC" for Bitcoin, "USDC" for USDC, etc.)
-          example: USD
-        name:
-          type: string
-          description: Full name of the currency
-          example: United States Dollar
-        symbol:
-          type: string
-          description: Symbol of the currency
-          example: $
-        decimals:
-          type: integer
-          description: Number of decimal places for the currency
-          minimum: 0
-          example: 2
     CurrencyAmount:
       type: object
       required:
@@ -4811,6 +4991,10 @@ components:
           required:
             - invoice
           properties:
+            accountType:
+              type: string
+              enum:
+                - LIGHTNING
             invoice:
               type: string
               description: Invoice for the payment
@@ -5376,31 +5560,33 @@ components:
       allOf:
         - $ref: '#/components/schemas/BaseExternalAccountInfo'
         - $ref: '#/components/schemas/SparkWalletInfo'
+    LightningInfo:
+      type: object
+      description: |
+        Lightning payment destination. Exactly one of `invoice`, `bolt12`, or `lightningAddress` must be provided.
+      required:
+        - accountType
+      properties:
+        accountType:
+          type: string
+          enum:
+            - LIGHTNING
+        invoice:
+          type: string
+          description: 1-time use lightning bolt11 invoice payout destination
+          example: lnbc15u1p3xnhl2pp5jptserfk3zk4qy42tlucycrfwxhydvlemu9pqr93tuzlv9cc7g3sdqsvfhkcap3xyhx7un8cqzpgxqzjcsp5f8c52y2stc300gl6s4xswtjpc37hrnnr3c9wvtgjfuvqmpm35evq9qyyssqy4lgd8tj637qcjp05rdpxxykjenthxftej7a2zzmwrmrl70fyj9hvj0rewhzj7jfyuwkwcg9g2jpwtk3wkjtwnkdks84hsnu8xps5vsq4gj5hs
+        bolt12:
+          type: string
+          description: A bolt12 offer which can be reused as a payment destination
+          example: lnbc15u1p3xnhl2pp5jptserfk3zk4qy42tlucycrfwxhydvlemu9pqr93tuzlv9cc7g3sdqsvfhkcap3xyhx7un8cqzpgxqzjcsp5f8c52y2stc300gl6s4xswtjpc37hrnnr3c9wvtgjfuvqmpm35evq9qyyssqy4lgd8tj637qcjp05rdpxxykjenthxftej7a2zzmwrmrl70fyj9hvj0rewhzj7jfyuwkwcg9g2jpwtk3wkjtwnkdks84hsnu8xps5vsq4gj5hs
+        lightningAddress:
+          type: string
+          description: A lightning address which can be used as a payment destination. Note that for UMA addresses, no external account is needed. You can use the UMA address directly as a destination.
+          example: john.doe@lightningwallet.com
     LightningExternalAccountInfo:
       allOf:
         - $ref: '#/components/schemas/BaseExternalAccountInfo'
-        - type: object
-          description: |
-            Lightning payment destination. Exactly one of `invoice`, `bolt12`, or `lightningAddress` must be provided.
-          required:
-            - accountType
-          properties:
-            accountType:
-              type: string
-              enum:
-                - LIGHTNING
-            invoice:
-              type: string
-              description: 1-time use lightning bolt11 invoice payout destination
-              example: lnbc15u1p3xnhl2pp5jptserfk3zk4qy42tlucycrfwxhydvlemu9pqr93tuzlv9cc7g3sdqsvfhkcap3xyhx7un8cqzpgxqzjcsp5f8c52y2stc300gl6s4xswtjpc37hrnnr3c9wvtgjfuvqmpm35evq9qyyssqy4lgd8tj637qcjp05rdpxxykjenthxftej7a2zzmwrmrl70fyj9hvj0rewhzj7jfyuwkwcg9g2jpwtk3wkjtwnkdks84hsnu8xps5vsq4gj5hs
-            bolt12:
-              type: string
-              description: A bolt12 offer which can be reused as a payment destination
-              example: lnbc15u1p3xnhl2pp5jptserfk3zk4qy42tlucycrfwxhydvlemu9pqr93tuzlv9cc7g3sdqsvfhkcap3xyhx7un8cqzpgxqzjcsp5f8c52y2stc300gl6s4xswtjpc37hrnnr3c9wvtgjfuvqmpm35evq9qyyssqy4lgd8tj637qcjp05rdpxxykjenthxftej7a2zzmwrmrl70fyj9hvj0rewhzj7jfyuwkwcg9g2jpwtk3wkjtwnkdks84hsnu8xps5vsq4gj5hs
-            lightningAddress:
-              type: string
-              description: A lightning address which can be used as a payment destination. Note that for UMA addresses, no external account is needed. You can use the UMA address directly as a destination.
-              example: john.doe@lightningwallet.com
+        - $ref: '#/components/schemas/LightningInfo'
     SolanaWalletExternalAccountInfo:
       allOf:
         - $ref: '#/components/schemas/BaseExternalAccountInfo'
diff --git a/openapi.yaml b/openapi.yaml
index 5a660fe2..21c98521 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -38,6 +38,8 @@ tags:
     description: Endpoints to trigger test cases in sandbox
   - name: API Tokens
     description: Endpoints to programmatically manage API tokens
+  - name: Exchange Rates
+    description: Endpoints for retrieving cached foreign exchange rates. Rates are cached for approximately 5 minutes and include platform-specific fees.
 paths:
   /config:
     get:
@@ -140,6 +142,126 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/Error501'
+  /exchange-rates:
+    get:
+      summary: Get exchange rates
+      description: |
+        Retrieve cached exchange rates for currency corridors. Returns FX rates that are cached
+        for approximately 5 minutes. Rates include fees specific to your platform for authenticated requests.
+
+        **Filtering Options:**
+        - Filter by source currency to get all available destination corridors
+        - Filter by specific destination currency or currencies
+        - Provide a sending amount to get calculated receiving amounts
+      operationId: getExchangeRates
+      tags:
+        - Exchange Rates
+      security:
+        - BasicAuth: []
+      parameters:
+        - name: sourceCurrency
+          in: query
+          description: Filter by source currency code (e.g., USD)
+          required: false
+          schema:
+            type: string
+          example: USD
+        - name: destinationCurrency
+          in: query
+          description: Filter by destination currency code(s). Can be repeated for multiple currencies (e.g., &destinationCurrency=INR&destinationCurrency=GBP)
+          required: false
+          style: form
+          explode: true
+          schema:
+            type: array
+            items:
+              type: string
+          example:
+            - INR
+        - name: sendingAmount
+          in: query
+          description: Sending amount in the smallest unit of the source currency (e.g., cents for USD).  If no amount is provided, the default is 10000 in the sending currency smallest unit.
+          required: false
+          schema:
+            type: integer
+            format: int64
+            minimum: 0
+            default: 10000
+          example: 10000
+      responses:
+        '200':
+          description: Successful operation
+          content:
+            application/json:
+              schema:
+                type: object
+                required:
+                  - data
+                properties:
+                  data:
+                    type: array
+                    description: List of exchange rates matching the filter criteria
+                    items:
+                      $ref: '#/components/schemas/ExchangeRate'
+              examples:
+                allRatesFromUSD:
+                  summary: All exchange rates from USD
+                  value:
+                    data:
+                      - sourceCurrency:
+                          code: USD
+                          decimals: 2
+                          name: US Dollar
+                          symbol: $
+                        sourcePaymentRail: RTP
+                        sendingAmount: 10000
+                        destinationCurrency:
+                          code: INR
+                          decimals: 2
+                          name: Indian Rupee
+                          symbol: ₹
+                        destinationPaymentRail: UPI
+                        receivingAmount: 1650000
+                        exchangeRate: 82.5
+                        fees:
+                          fixed: 100
+                        updatedAt: '2025-02-05T12:00:00Z'
+                      - sourceCurrency:
+                          code: USD
+                          decimals: 2
+                          name: US Dollar
+                          symbol: $
+                        sourcePaymentRail: RTP
+                        sendingAmount: 10000
+                        destinationCurrency:
+                          code: EUR
+                          decimals: 2
+                          name: Euro
+                          symbol: €
+                        destinationPaymentRail: SEPA_INSTANT
+                        receivingAmount: 18500
+                        exchangeRate: 0.925
+                        fees:
+                          fixed: 10
+                        updatedAt: '2025-02-05T12:00:00Z'
+        '400':
+          description: Bad request - Invalid parameters
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error400'
+        '401':
+          description: Unauthorized
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error401'
+        '500':
+          description: Internal service error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error500'
   /customers:
     post:
       summary: Add a new customer
@@ -4113,6 +4235,84 @@ components:
           type: object
           description: Additional error details
           additionalProperties: true
+    Currency:
+      type: object
+      properties:
+        code:
+          type: string
+          description: Three-letter currency code (ISO 4217) for fiat currencies. Some cryptocurrencies may use their own ticker symbols (e.g. "BTC" for Bitcoin, "USDC" for USDC, etc.)
+          example: USD
+        name:
+          type: string
+          description: Full name of the currency
+          example: United States Dollar
+        symbol:
+          type: string
+          description: Symbol of the currency
+          example: $
+        decimals:
+          type: integer
+          description: Number of decimal places for the currency
+          minimum: 0
+          example: 2
+    ExchangeRateFees:
+      type: object
+      description: Fees associated with an exchange rate
+      properties:
+        fixed:
+          type: integer
+          format: int64
+          description: Fixed fee in the smallest unit of the sending currency (e.g., cents for USD)
+          minimum: 0
+          example: 100
+    ExchangeRate:
+      type: object
+      description: Exchange rate information for a currency corridor
+      required:
+        - sourceCurrency
+        - destinationCurrency
+        - destinationPaymentRail
+        - receivingAmount
+        - exchangeRate
+        - fees
+        - updatedAt
+      properties:
+        sourceCurrency:
+          $ref: '#/components/schemas/Currency'
+        sourcePaymentRail:
+          type: string
+          description: The payment rail used for the source (e.g., ACCOUNT, RTP)
+          example: ACCOUNT
+        sendingAmount:
+          type: integer
+          format: int64
+          description: The sending amount in the smallest unit of the source currency (e.g., cents for USD). Echoed back from the request if provided.
+          minimum: 0
+          example: 10000
+        destinationCurrency:
+          $ref: '#/components/schemas/Currency'
+        destinationPaymentRail:
+          type: string
+          description: The payment rail used for the destination (e.g., UPI, SEPA_INSTANT, MOBILE_MONEY, FASTER_PAYMENTS)
+          example: UPI
+        receivingAmount:
+          type: integer
+          format: int64
+          description: The receiving amount in the smallest unit of the destination currency
+          minimum: 0
+          example: 1650000
+        exchangeRate:
+          type: number
+          description: Number of destination currency units per sending currency unit
+          exclusiveMinimum: 0
+          example: 82.5
+        fees:
+          $ref: '#/components/schemas/ExchangeRateFees'
+        updatedAt:
+          type: string
+          format: date-time
+          description: Timestamp when this exchange rate was last refreshed
+          example: '2025-02-05T12:00:00Z'
     CustomerType:
       type: string
       enum:
@@ -4537,26 +4737,6 @@ components:
         mapping:
           INDIVIDUAL: '#/components/schemas/IndividualCustomerUpdateRequest'
           BUSINESS: '#/components/schemas/BusinessCustomerUpdateRequest'
-    Currency:
-      type: object
-      properties:
-        code:
-          type: string
-          description: Three-letter currency code (ISO 4217) for fiat currencies. Some cryptocurrencies may use their own ticker symbols (e.g. "BTC" for Bitcoin, "USDC" for USDC, etc.)
-          example: USD
-        name:
-          type: string
-          description: Full name of the currency
-          example: United States Dollar
-        symbol:
-          type: string
-          description: Symbol of the currency
-          example: $
-        decimals:
-          type: integer
-          description: Number of decimal places for the currency
-          minimum: 0
-          example: 2
     CurrencyAmount:
       type: object
       required:
@@ -4811,6 +4991,10 @@ components:
           required:
             - invoice
           properties:
+            accountType:
+              type: string
+              enum:
+                - LIGHTNING
             invoice:
               type: string
               description: Invoice for the payment
@@ -5376,31 +5560,33 @@ components:
       allOf:
         - $ref: '#/components/schemas/BaseExternalAccountInfo'
         - $ref: '#/components/schemas/SparkWalletInfo'
+    LightningInfo:
+      type: object
+      description: |
+        Lightning payment destination. Exactly one of `invoice`, `bolt12`, or `lightningAddress` must be provided.
+      required:
+        - accountType
+      properties:
+        accountType:
+          type: string
+          enum:
+            - LIGHTNING
+        invoice:
+          type: string
+          description: 1-time use lightning bolt11 invoice payout destination
+          example: lnbc15u1p3xnhl2pp5jptserfk3zk4qy42tlucycrfwxhydvlemu9pqr93tuzlv9cc7g3sdqsvfhkcap3xyhx7un8cqzpgxqzjcsp5f8c52y2stc300gl6s4xswtjpc37hrnnr3c9wvtgjfuvqmpm35evq9qyyssqy4lgd8tj637qcjp05rdpxxykjenthxftej7a2zzmwrmrl70fyj9hvj0rewhzj7jfyuwkwcg9g2jpwtk3wkjtwnkdks84hsnu8xps5vsq4gj5hs
+        bolt12:
+          type: string
+          description: A bolt12 offer which can be reused as a payment destination
+          example: lnbc15u1p3xnhl2pp5jptserfk3zk4qy42tlucycrfwxhydvlemu9pqr93tuzlv9cc7g3sdqsvfhkcap3xyhx7un8cqzpgxqzjcsp5f8c52y2stc300gl6s4xswtjpc37hrnnr3c9wvtgjfuvqmpm35evq9qyyssqy4lgd8tj637qcjp05rdpxxykjenthxftej7a2zzmwrmrl70fyj9hvj0rewhzj7jfyuwkwcg9g2jpwtk3wkjtwnkdks84hsnu8xps5vsq4gj5hs
+        lightningAddress:
+          type: string
+          description: A lightning address which can be used as a payment destination. Note that for UMA addresses, no external account is needed. You can use the UMA address directly as a destination.
+          example: john.doe@lightningwallet.com
     LightningExternalAccountInfo:
       allOf:
         - $ref: '#/components/schemas/BaseExternalAccountInfo'
-        - type: object
-          description: |
-            Lightning payment destination. Exactly one of `invoice`, `bolt12`, or `lightningAddress` must be provided.
-          required:
-            - accountType
-          properties:
-            accountType:
-              type: string
-              enum:
-                - LIGHTNING
-            invoice:
-              type: string
-              description: 1-time use lightning bolt11 invoice payout destination
-              example: lnbc15u1p3xnhl2pp5jptserfk3zk4qy42tlucycrfwxhydvlemu9pqr93tuzlv9cc7g3sdqsvfhkcap3xyhx7un8cqzpgxqzjcsp5f8c52y2stc300gl6s4xswtjpc37hrnnr3c9wvtgjfuvqmpm35evq9qyyssqy4lgd8tj637qcjp05rdpxxykjenthxftej7a2zzmwrmrl70fyj9hvj0rewhzj7jfyuwkwcg9g2jpwtk3wkjtwnkdks84hsnu8xps5vsq4gj5hs
-            bolt12:
-              type: string
-              description: A bolt12 offer which can be reused as a payment destination
-              example: lnbc15u1p3xnhl2pp5jptserfk3zk4qy42tlucycrfwxhydvlemu9pqr93tuzlv9cc7g3sdqsvfhkcap3xyhx7un8cqzpgxqzjcsp5f8c52y2stc300gl6s4xswtjpc37hrnnr3c9wvtgjfuvqmpm35evq9qyyssqy4lgd8tj637qcjp05rdpxxykjenthxftej7a2zzmwrmrl70fyj9hvj0rewhzj7jfyuwkwcg9g2jpwtk3wkjtwnkdks84hsnu8xps5vsq4gj5hs
-            lightningAddress:
-              type: string
-              description: A lightning address which can be used as a payment destination. Note that for UMA addresses, no external account is needed. You can use the UMA address directly as a destination.
-              example: john.doe@lightningwallet.com
+        - $ref: '#/components/schemas/LightningInfo'
     SolanaWalletExternalAccountInfo:
       allOf:
         - $ref: '#/components/schemas/BaseExternalAccountInfo'
diff --git a/openapi/README.md b/openapi/README.md
index 60d201b9..c2e6f03e 100644
--- a/openapi/README.md
+++ b/openapi/README.md
@@ -7,8 +7,13 @@ This readme is a continually evolving document meant to provide API design best
 3. Make new APIs easy to define
 
 ---
+
 ## OpenAPI schema version
+
 This guide uses [OpenAPI schema 3.1](https://spec.openapis.org/oas/v3.1.0.html).
+
+## Design Guidelines
+
 - Imagine you're teaching a customer how to use our API. How might you structure the API to make it easy to explain and understand?
 - Since we don't know exactly how customers will use the API, how might we make it flexible?
 - Can integrators guess how your API works based on how other features work?
@@ -49,11 +54,13 @@ openapi/
 We version by dates but SDKs still use semver.
 
 ### Version Format
+
 - **API Version**: `YYYY-MM-DD` format (e.g., `2025-10-13`)
 - **Server URL**: Version is included in the path: `https://api.lightspark.com/grid/2025-10-13`
 - **SDK Version**: Follows semver (`1.0.0`, `1.1.0`, `2.0.0`)
 
 ### What's Considered a Breaking Change
+
 - New required field on request
 - Removing a field from response
 - Changing a field name
@@ -64,6 +71,7 @@ We version by dates but SDKs still use semver.
 When you release an SDK, Stainless will flag breaking changes.
 
 ### What's Not a Breaking Change
+
 - Making a required field optional
 - Adding a new optional field
 - Adding a new enum value
@@ -71,13 +79,16 @@ When you release an SDK, Stainless will flag breaking changes.
 - Adding a new response field
 
 ### Deprecation Policy
+
 *TBD! BUT initial thoughts* 
+
 1. Mark deprecated endpoints with `deprecated: true` in OpenAPI spec
 2. Document deprecation in changelog and SDK release notes
-3. Maintain deprecated endpoints for at least X months
+3. Maintain deprecated endpoints for at least 6 months
 4. Communicate migration path in documentation
 
 ### Instead of a breaking change, you can
+
 - Add new optional fields instead of modifying existing ones
 - Create a new endpoint if behavior must change significantly
 
@@ -86,10 +97,12 @@ When you release an SDK, Stainless will flag breaking changes.
 ## Naming Conventions
 
 ### Resources
+
 - Use **plural nouns** for resource names: `/customers` not `/customer`
 - Exception: Use singular when there can only be one (e.g., `/config`)
 
 ### Identifiers
+
 ID values should be prefixed with the resource type to help users identify the resource type in their system.
 
 | Resource | ID Format | Example |
@@ -124,6 +137,7 @@ Use a type hint where it makes sense eg startDate, customerId.
 ### States
 
 Resources with lifecycle states (e.g., transactions, quotes, invitations) should document:
+
 1. All possible states
 2. Valid state transitions
 3. What triggers each transition
@@ -261,9 +275,77 @@ discriminator:
     BUSINESS: '#/components/schemas/BusinessCustomer'
 ```
 
-Also:
-- Define the discriminator property as a separate schema with an enum so generated client libraries include an enum class (see `openapi/components/schemas/customers/CustomerType.yaml`, used by `customerType` in `Customer` and `CustomerCreateRequest`).
-- Each discriminated schema must include the discriminator field with a single-value enum, because the OpenAPI generator does not reliably infer it from the discriminator (see `IndividualCustomerFields` included by `IndividualCustomer.yaml` and `IndividualCustomerCreateRequest.yaml`, where `customerType` is `enum: [INDIVIDUAL]`).
+#### Three-layer discriminator pattern
+
+We use a three-layer pattern for discriminated unions:
+
+1. **Shared enum schema** — A standalone schema defining all possible discriminator values (e.g., `CustomerType.yaml` with `enum: [INDIVIDUAL, BUSINESS]`). This generates a reusable enum class in SDKs and is used by query parameters, filters, etc.
+2. **Base schema with `$ref` and discriminator** — The base schema references the shared enum and declares the discriminator mapping (e.g., `Customer.yaml` has `customerType: $ref: ./CustomerType.yaml` and a `discriminator` block).
+3. **Variant schemas with single-value inline enums** — Each variant redefines the discriminator property with a single-value `enum` (e.g., `IndividualCustomerFields.yaml` has `customerType: enum: [INDIVIDUAL]`). Variants are composed with the base via `allOf`.
+
+```
+CustomerType.yaml          → enum: [INDIVIDUAL, BUSINESS]   (shared type)
+Customer.yaml              → customerType: $ref CustomerType  (base, with discriminator)
+IndividualCustomerFields   → customerType: enum: [INDIVIDUAL] (variant, single-value)
+IndividualCustomer.yaml    → allOf: [Customer, IndividualCustomerFields]
+```
+
+#### Why variants need single-value inline enums
+
+The inline single-value enums in variant schemas serve two purposes:
+
+- **Python openapi-generator**: Does not reliably use the `discriminator` when deserializing JSON responses. The inline enum ensures each variant is self-describing and can be distinguished without discriminator logic.
+- **Stainless Kotlin SDK**: Uses structural matching (`tryDeserialize` in sequence) rather than discriminator-based deserialization. Variants that are structurally identical (e.g., wallet types that all have `{ accountType, address }`) can only be distinguished if each has its own single-value enum that rejects other values during deserialization.
+
+#### Why this causes `allOf` type conflicts in Stainless
+
+When `allOf` merges a base schema (where the discriminator uses a `$ref` to the shared enum) with a variant schema (where the discriminator is an inline single-value enum), Stainless generates two different types for the same property. This causes Kotlin compilation errors like:
+
+```
+None of the following functions can be called with the arguments supplied:
+  customerType(JsonField<BusinessCustomerFields.CustomerType>): Builder
+  customerType(BusinessCustomerFields.CustomerType): Builder
+```
+
+#### The fix: Stainless transforms remove the property from base schemas
+
+To resolve the conflict, Stainless transforms in `.stainless/stainless.yml` remove the discriminator property from the **base** schemas' `properties` (not from the variants). This makes the variant's inline enum the sole definition of the property in the `allOf` composition, eliminating the type conflict.
+
+```yaml
+# In .stainless/stainless.yml
+openapi:
+  transformations:
+    - command: remove
+      reason: Remove accountType $ref from base to avoid allOf type conflicts
+      args:
+        target:
+          - "$.components.schemas.BaseExternalAccountInfo.properties"
+        keys: ["accountType"]
+```
+
+**Important**: We remove from the **base**, not the variant, because:
+
+- Removing from variants would strip the single-value enum, making structurally identical schemas (e.g., all wallet types) indistinguishable during Stainless deserialization.
+- Removing from the base preserves each variant's distinct enum value for structural matching.
+
+The original OpenAPI spec is unchanged — transforms only affect what Stainless sees during SDK generation. The Python openapi-generator and documentation continue to use the full spec with both definitions.
+
+#### Required fields for discriminator properties
+
+The discriminator property must be listed in `required` in the **variant** schemas (or their fields/info schemas). Since the Stainless transform removes the property from the base, the variant is the sole owner — if it's not `required` there, the generated SDK treats it as optional, causing test failures where the discriminator value is missing from roundtripped objects.
+
+```yaml
+# In the variant schema — discriminator MUST be in required
+- type: object
+  required:
+    - accountId
+    - destinationType    # ← must be here
+  properties:
+    destinationType:
+      type: string
+      enum:
+        - ACCOUNT
+```
 
 ### Composition
 
@@ -317,6 +399,7 @@ code:
 | 204 | Resource deleted successfully (no content) |
 
 ### Error Status Codes
+
 Generally 4xx errors indicate an issue with the integrators request and 5xx errors indicate an issue with our services.  Our client libraries will automatically retry 5xx responses.
 
 | Code | Meaning | When to Use |
@@ -446,8 +529,36 @@ try {
   }
 }
 ```
+
 Stainless also generates [API reference SDK examples](https://www.stainless.com/docs/guides/integrate-docs#how-stainless-generates-sdk-code-snippets) for our Mintlify documentation
 
+### Stainless OpenAPI Transforms
+
+Stainless transforms modify the OpenAPI spec during SDK generation without editing the source file. They are configured in `.stainless/stainless.yml` under `openapi.transformations`.
+
+We use transforms to resolve `allOf` type conflicts caused by the [three-layer discriminator pattern](#three-layer-discriminator-pattern). See that section for the full explanation.
+
+#### When adding a new `oneOf` with discriminator
+
+If you add a new discriminated `oneOf` that follows the three-layer pattern (base with `$ref` + variants with inline enums composed via `allOf`), you must also add a `remove` transform in `.stainless/stainless.yml` to strip the discriminator property from the base schema:
+
+1. Add the base schema to the appropriate `remove` transform target list (or create a new transform)
+2. Ensure variant schemas have the discriminator property in both `properties` (with single-value enum) and `required`
+3. Re-generate the SDK and verify tests pass
+
+#### Available transform commands
+
+
+| Command              | Use case                                                                |
+| -------------------- | ----------------------------------------------------------------------- |
+| `remove` with `keys` | Remove a property from a schema's `properties` object                   |
+| `update`             | Replace a property definition (e.g., inline enum → `$ref`)              |
+| `append`             | Add a new field (fails if it already exists — good for temporary fixes) |
+| `merge`              | Add permanent metadata like `x-stainless-naming`                        |
+
+
+See [Stainless transforms documentation](https://www.stainless.com/docs/guides/transforms/) for the full reference.
+
 ---
 
 ## Redocly CLI
@@ -465,3 +576,4 @@ npx @redocly/cli bundle openapi/openapi.yaml -o openapi.yaml
 - [Hide APIs for internal use](https://redocly.com/docs/cli/guides/hide-apis)
 - Lint rules configured in `.redocly.yaml`
 - Ignore specific lint rules in `.redocly.lint-ignore.yaml`
+
diff --git a/openapi/components/schemas/common/LightningInfo.yaml b/openapi/components/schemas/common/LightningInfo.yaml
new file mode 100644
index 00000000..ecdc9b6d
--- /dev/null
+++ b/openapi/components/schemas/common/LightningInfo.yaml
@@ -0,0 +1,22 @@
+type: object
+description: >
+  Lightning payment destination. Exactly one of `invoice`, `bolt12`, or `lightningAddress` must be provided.
+required:
+  - accountType
+properties:
+  accountType:
+    type: string
+    enum:
+      - LIGHTNING
+  invoice:
+    type: string
+    description: 1-time use lightning bolt11 invoice payout destination
+    example: lnbc15u1p3xnhl2pp5jptserfk3zk4qy42tlucycrfwxhydvlemu9pqr93tuzlv9cc7g3sdqsvfhkcap3xyhx7un8cqzpgxqzjcsp5f8c52y2stc300gl6s4xswtjpc37hrnnr3c9wvtgjfuvqmpm35evq9qyyssqy4lgd8tj637qcjp05rdpxxykjenthxftej7a2zzmwrmrl70fyj9hvj0rewhzj7jfyuwkwcg9g2jpwtk3wkjtwnkdks84hsnu8xps5vsq4gj5hs
+  bolt12:
+    type: string
+    description: A bolt12 offer which can be reused as a payment destination
+    example: lnbc15u1p3xnhl2pp5jptserfk3zk4qy42tlucycrfwxhydvlemu9pqr93tuzlv9cc7g3sdqsvfhkcap3xyhx7un8cqzpgxqzjcsp5f8c52y2stc300gl6s4xswtjpc37hrnnr3c9wvtgjfuvqmpm35evq9qyyssqy4lgd8tj637qcjp05rdpxxykjenthxftej7a2zzmwrmrl70fyj9hvj0rewhzj7jfyuwkwcg9g2jpwtk3wkjtwnkdks84hsnu8xps5vsq4gj5hs
+  lightningAddress:
+    type: string
+    description: A lightning address which can be used as a payment destination. Note that for UMA addresses, no external account is needed. You can use the UMA address directly as a destination.
+    example: john.doe@lightningwallet.com
diff --git a/openapi/components/schemas/common/PaymentLightningInvoiceInfo.yaml b/openapi/components/schemas/common/PaymentLightningInvoiceInfo.yaml
index 2750adf3..82d60122 100644
--- a/openapi/components/schemas/common/PaymentLightningInvoiceInfo.yaml
+++ b/openapi/components/schemas/common/PaymentLightningInvoiceInfo.yaml
@@ -4,6 +4,10 @@ allOf:
     required:
       - invoice
     properties:
+      accountType:
+        type: string
+        enum:
+          - LIGHTNING
       invoice:
         type: string
         description: Invoice for the payment
diff --git a/openapi/components/schemas/exchange_rates/ExchangeRate.yaml b/openapi/components/schemas/exchange_rates/ExchangeRate.yaml
new file mode 100644
index 00000000..1f20276d
--- /dev/null
+++ b/openapi/components/schemas/exchange_rates/ExchangeRate.yaml
@@ -0,0 +1,47 @@
+type: object
+description: Exchange rate information for a currency corridor
+required:
+  - sourceCurrency
+  - destinationCurrency
+  - destinationPaymentRail
+  - receivingAmount
+  - exchangeRate
+  - fees
+  - updatedAt
+properties:
+  sourceCurrency:
+    $ref: ../common/Currency.yaml
+  sourcePaymentRail:
+    type: string
+    description: The payment rail used for the source (e.g., ACCOUNT, RTP)
+    example: ACCOUNT
+  sendingAmount:
+    type: integer
+    format: int64
+    description: The sending amount in the smallest unit of the source currency (e.g., cents for USD). Echoed back from the request if provided.
+    minimum: 0
+    example: 10000
+  destinationCurrency:
+    $ref: ../common/Currency.yaml
+  destinationPaymentRail:
+    type: string
+    description: The payment rail used for the destination (e.g., UPI, SEPA_INSTANT, MOBILE_MONEY, FASTER_PAYMENTS)
+    example: UPI
+  receivingAmount:
+    type: integer
+    format: int64
+    description: The receiving amount in the smallest unit of the destination currency
+    minimum: 0
+    example: 1650000
+  exchangeRate:
+    type: number
+    description: Number of destination currency units per sending currency unit
+    exclusiveMinimum: 0
+    example: 82.50
+  fees:
+    $ref: ./ExchangeRateFees.yaml
+  updatedAt:
+    type: string
+    format: date-time
+    description: Timestamp when this exchange rate was last refreshed
+    example: "2025-02-05T12:00:00Z"
diff --git a/openapi/components/schemas/exchange_rates/ExchangeRateFees.yaml b/openapi/components/schemas/exchange_rates/ExchangeRateFees.yaml
new file mode 100644
index 00000000..3c58d7c5
--- /dev/null
+++ b/openapi/components/schemas/exchange_rates/ExchangeRateFees.yaml
@@ -0,0 +1,9 @@
+type: object
+description: Fees associated with an exchange rate
+properties:
+  fixed:
+    type: integer
+    format: int64
+    description: Fixed fee in the smallest unit of the sending currency (e.g., cents for USD)
+    minimum: 0
+    example: 100
diff --git a/openapi/components/schemas/external_accounts/LightningExternalAccountInfo.yaml b/openapi/components/schemas/external_accounts/LightningExternalAccountInfo.yaml
index 754c07c1..9af277bb 100644
--- a/openapi/components/schemas/external_accounts/LightningExternalAccountInfo.yaml
+++ b/openapi/components/schemas/external_accounts/LightningExternalAccountInfo.yaml
@@ -1,24 +1,3 @@
 allOf:
   - $ref: ./BaseExternalAccountInfo.yaml
-  - type: object
-    description: >
-      Lightning payment destination. Exactly one of `invoice`, `bolt12`, or `lightningAddress` must be provided.
-    required:
-      - accountType
-    properties:
-      accountType:
-        type: string
-        enum:
-          - LIGHTNING
-      invoice:
-        type: string
-        description: 1-time use lightning bolt11 invoice payout destination
-        example: lnbc15u1p3xnhl2pp5jptserfk3zk4qy42tlucycrfwxhydvlemu9pqr93tuzlv9cc7g3sdqsvfhkcap3xyhx7un8cqzpgxqzjcsp5f8c52y2stc300gl6s4xswtjpc37hrnnr3c9wvtgjfuvqmpm35evq9qyyssqy4lgd8tj637qcjp05rdpxxykjenthxftej7a2zzmwrmrl70fyj9hvj0rewhzj7jfyuwkwcg9g2jpwtk3wkjtwnkdks84hsnu8xps5vsq4gj5hs
-      bolt12:
-        type: string
-        description: A bolt12 offer which can be reused as a payment destination
-        example: lnbc15u1p3xnhl2pp5jptserfk3zk4qy42tlucycrfwxhydvlemu9pqr93tuzlv9cc7g3sdqsvfhkcap3xyhx7un8cqzpgxqzjcsp5f8c52y2stc300gl6s4xswtjpc37hrnnr3c9wvtgjfuvqmpm35evq9qyyssqy4lgd8tj637qcjp05rdpxxykjenthxftej7a2zzmwrmrl70fyj9hvj0rewhzj7jfyuwkwcg9g2jpwtk3wkjtwnkdks84hsnu8xps5vsq4gj5hs
-      lightningAddress:
-        type: string
-        description: A lightning address which can be used as a payment destination. Note that for UMA addresses, no external account is needed. You can use the UMA address directly as a destination.
-        example: john.doe@lightningwallet.com
+  - $ref: ../common/LightningInfo.yaml
diff --git a/openapi/openapi.yaml b/openapi/openapi.yaml
index 822bbce7..45d66a13 100644
--- a/openapi/openapi.yaml
+++ b/openapi/openapi.yaml
@@ -35,6 +35,10 @@ tags:
     description: Endpoints to trigger test cases in sandbox
   - name: API Tokens
     description: Endpoints to programmatically manage API tokens
+  - name: Exchange Rates
+    description: >-
+      Endpoints for retrieving cached foreign exchange rates. Rates are cached
+      for approximately 5 minutes and include platform-specific fees.
 servers:
   - url: https://api.lightspark.com/grid/2025-10-13
     description: Production server
@@ -84,6 +88,8 @@ components:
 paths:
   /config:
     $ref: paths/platform/config.yaml
+  /exchange-rates:
+    $ref: paths/exchange-rates/exchange_rates.yaml
   /customers:
     $ref: paths/customers/customers.yaml
   /customers/{customerId}:
diff --git a/openapi/paths/exchange-rates/exchange_rates.yaml b/openapi/paths/exchange-rates/exchange_rates.yaml
new file mode 100644
index 00000000..8fdb97f3
--- /dev/null
+++ b/openapi/paths/exchange-rates/exchange_rates.yaml
@@ -0,0 +1,122 @@
+get:
+  summary: Get exchange rates
+  description: |
+    Retrieve cached exchange rates for currency corridors. Returns FX rates that are cached
+    for approximately 5 minutes. Rates include fees specific to your platform for authenticated requests.
+
+    **Filtering Options:**
+    - Filter by source currency to get all available destination corridors
+    - Filter by specific destination currency or currencies
+    - Provide a sending amount to get calculated receiving amounts
+
+  operationId: getExchangeRates
+  tags:
+    - Exchange Rates
+  security:
+    - BasicAuth: []
+  parameters:
+    - name: sourceCurrency
+      in: query
+      description: Filter by source currency code (e.g., USD)
+      required: false
+      schema:
+        type: string
+      example: USD
+    - name: destinationCurrency
+      in: query
+      description: >-
+        Filter by destination currency code(s). Can be repeated for multiple currencies
+        (e.g., &destinationCurrency=INR&destinationCurrency=GBP)
+      required: false
+      style: form
+      explode: true
+      schema:
+        type: array
+        items:
+          type: string
+      example:
+        - INR
+    - name: sendingAmount
+      in: query
+      description: Sending amount in the smallest unit of the source currency (e.g., cents for USD).  If no amount is provided, the default is 10000 in the sending currency smallest unit.
+      required: false
+      schema:
+        type: integer
+        format: int64
+        minimum: 0
+        default: 10000
+      example: 10000
+  responses:
+    "200":
+      description: Successful operation
+      content:
+        application/json:
+          schema:
+            type: object
+            required:
+              - data
+            properties:
+              data:
+                type: array
+                description: List of exchange rates matching the filter criteria
+                items:
+                  $ref: ../../components/schemas/exchange_rates/ExchangeRate.yaml
+          examples:
+            allRatesFromUSD:
+              summary: All exchange rates from USD
+              value:
+                data:
+                  - sourceCurrency:
+                      code: USD
+                      decimals: 2
+                      name: US Dollar
+                      symbol: "$"
+                    sourcePaymentRail: RTP
+                    sendingAmount: 10000
+                    destinationCurrency:
+                      code: INR
+                      decimals: 2
+                      name: Indian Rupee
+                      symbol: "₹"
+                    destinationPaymentRail: UPI
+                    receivingAmount: 1650000
+                    exchangeRate: 82.50
+                    fees:
+                      fixed: 100
+                    updatedAt: "2025-02-05T12:00:00Z"
+                  - sourceCurrency:
+                      code: USD
+                      decimals: 2
+                      name: US Dollar
+                      symbol: "$"
+                    sourcePaymentRail: RTP
+                    sendingAmount: 10000
+                    destinationCurrency:
+                      code: EUR
+                      decimals: 2
+                      name: Euro
+                      symbol: "€"
+                    destinationPaymentRail: SEPA_INSTANT
+                    receivingAmount: 18500
+                    exchangeRate: 0.925
+                    fees:
+                      fixed: 10
+                    updatedAt: "2025-02-05T12:00:00Z"
+    "400":
+      description: Bad request - Invalid parameters
+      content:
+        application/json:
+          schema:
+            $ref: ../../components/schemas/errors/Error400.yaml
+    "401":
+      description: Unauthorized
+      content:
+        application/json:
+          schema:
+            $ref: ../../components/schemas/errors/Error401.yaml
+    "500":
+      description: Internal service error
+      content:
+        application/json:
+          schema:
+            $ref: ../../components/schemas/errors/Error500.yaml