diff --git a/typescript/agentkit/src/action-providers/index.ts b/typescript/agentkit/src/action-providers/index.ts
index e95ce5e5b..0002397de 100644
--- a/typescript/agentkit/src/action-providers/index.ts
+++ b/typescript/agentkit/src/action-providers/index.ts
@@ -25,6 +25,7 @@ export * from "./opensea";
 export * from "./spl";
 export * from "./superfluid";
 export * from "./sushi";
+export * from "./thoughtproof";
 export * from "./truemarkets";
 export * from "./twitter";
 export * from "./wallet";
diff --git a/typescript/agentkit/src/action-providers/thoughtproof/constants.ts b/typescript/agentkit/src/action-providers/thoughtproof/constants.ts
new file mode 100644
index 000000000..a3161b78d
--- /dev/null
+++ b/typescript/agentkit/src/action-providers/thoughtproof/constants.ts
@@ -0,0 +1 @@
+export const THOUGHTPROOF_API_BASE_URL = "https://api.thoughtproof.ai";
diff --git a/typescript/agentkit/src/action-providers/thoughtproof/index.ts b/typescript/agentkit/src/action-providers/thoughtproof/index.ts
new file mode 100644
index 000000000..4afe7b9fc
--- /dev/null
+++ b/typescript/agentkit/src/action-providers/thoughtproof/index.ts
@@ -0,0 +1,2 @@
+export { ThoughtProofActionProvider, thoughtproofActionProvider } from "./thoughtproofActionProvider";
+export { VerifyReasoningSchema } from "./schemas";
diff --git a/typescript/agentkit/src/action-providers/thoughtproof/schemas.ts b/typescript/agentkit/src/action-providers/thoughtproof/schemas.ts
new file mode 100644
index 000000000..23caa6c38
--- /dev/null
+++ b/typescript/agentkit/src/action-providers/thoughtproof/schemas.ts
@@ -0,0 +1,17 @@
+import { z } from "zod";
+
+export const VerifyReasoningSchema = z
+  .object({
+    claim: z
+      .string()
+      .describe("The claim, decision, or action to verify (e.g. 'Swap 100 USDC for TOKEN_X at market price')"),
+    stakeLevel: z
+      .enum(["low", "medium", "high", "critical"])
+      .describe("The stakes of the decision. Use 'high' or 'critical' for transactions above $1000 or irreversible actions."),
+    domain: z
+      .enum(["financial", "security", "legal", "medical", "general"])
+      .optional()
+      .describe("The domain of the claim. Defaults to 'financial' for DeFi actions."),
+  })
+  .strip()
+  .describe("Input schema for verifying a reasoning claim before executing an action");
diff --git a/typescript/agentkit/src/action-providers/thoughtproof/thoughtproofActionProvider.ts b/typescript/agentkit/src/action-providers/thoughtproof/thoughtproofActionProvider.ts
new file mode 100644
index 000000000..66e076c83
--- /dev/null
+++ b/typescript/agentkit/src/action-providers/thoughtproof/thoughtproofActionProvider.ts
@@ -0,0 +1,78 @@
+import { z } from "zod";
+import { ActionProvider } from "../actionProvider";
+import { CreateAction } from "../actionDecorator";
+import { VerifyReasoningSchema } from "./schemas";
+import { THOUGHTPROOF_API_BASE_URL } from "./constants";
+
+/**
+ * ThoughtProofActionProvider is an action provider for reasoning verification.
+ * Runs adversarial multi-model critique (Claude + Grok + DeepSeek) on any claim
+ * before the agent executes it. Returns ALLOW, BLOCK, or UNCERTAIN with a signed attestation.
+ *
+ * Uses x402 micropayments on Base (USDC). No API key required.
+ * Docs: https://thoughtproof.ai/skill.md
+ */
+export class ThoughtProofActionProvider extends ActionProvider {
+  constructor() {
+    super("thoughtproof", []);
+  }
+
+  /**
+   * Verifies a claim or decision using adversarial multi-model reasoning.
+   * Call this before executing high-stakes or irreversible actions.
+   *
+   * @param args - The verification parameters (claim, stakeLevel, domain)
+   * @returns Verification result with verdict (ALLOW/BLOCK/UNCERTAIN), confidence, and objections
+   */
+  @CreateAction({
+    name: "verify_reasoning",
+    description:
+      "Verify a claim or decision using adversarial multi-model reasoning before executing. " +
+      "Returns ALLOW, BLOCK, or UNCERTAIN with confidence score and key objections. " +
+      "Use before irreversible actions, large transactions, or high-stakes decisions.",
+    schema: VerifyReasoningSchema,
+  })
+  async verifyReasoning(args: z.infer<typeof VerifyReasoningSchema>): Promise<string> {
+    try {
+      const response = await fetch(`${THOUGHTPROOF_API_BASE_URL}/v1/check`, {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+        },
+        body: JSON.stringify({
+          claim: args.claim,
+          stakeLevel: args.stakeLevel ?? "medium",
+          domain: args.domain ?? "financial",
+        }),
+      });
+
+      if (!response.ok) {
+        return `ThoughtProof verification failed: HTTP ${response.status}. Proceed with caution.`;
+      }
+
+      const data = await response.json();
+      const verdict = data.verdict ?? "UNCERTAIN";
+      const confidence = data.confidence ?? 0;
+      const objections = data.objections ?? [];
+
+      if (verdict === "ALLOW") {
+        return (
+          `✅ ThoughtProof: ALLOW (confidence: ${confidence}%)\n` +
+          (objections.length > 0 ? `Minor concerns: ${objections.join("; ")}` : "No objections raised.")
+        );
+      } else if (verdict === "BLOCK") {
+        return (
+          `🚫 ThoughtProof: BLOCK — do not proceed.\n` +
+          `Confidence: ${confidence}%\n` +
+          `Objections:\n${objections.map((o: string) => `- ${o}`).join("\n")}`
+        );
+      }
+    } catch (error) {
+      return `🚫 ThoughtProof: BLOCK — verification service unavailable (${error}). Do not proceed until reasoning can be verified.`;
+    }
+  }
+
+  supportsNetwork = () => true;
+}
+
+export const thoughtproofActionProvider = () => new ThoughtProofActionProvider();