Add Styx and Acheron to Community Servers

README.md

@@ -579,6 +579,7 @@ A growing set of community-developed and maintained servers demonstrates various
 - **[A2A](https://github.com/GongRzhe/A2A-MCP-Server)** - An MCP server that bridges the Model Context Protocol (MCP) with the Agent-to-Agent (A2A) protocol, enabling MCP-compatible AI assistants (like Claude) to seamlessly interact with A2A agents.
 - **[Ableton Live](https://github.com/Simon-Kansara/ableton-live-mcp-server)** - an MCP server to control Ableton Live.
 - **[Ableton Live](https://github.com/ahujasid/ableton-mcp)** (by ahujasid) - Ableton integration allowing prompt enabled music creation.
+- **[Acheron](https://github.com/timmx7/acheron-mcp-server)** - Cross-surface persistent memory for Claude. Bridges context between Claude Chat, Code, and Cowork via local SQLite with full-text search.
 - **[ActivityPub MCP](https://github.com/cameronrye/activitypub-mcp)** - A comprehensive MCP server that enables LLMs to explore and interact with the Fediverse through ActivityPub protocol, supporting actor discovery, timeline fetching, instance exploration, and WebFinger resolution across decentralized social networks.
 - **[Actor Critic Thinking](https://github.com/aquarius-wing/actor-critic-thinking-mcp)** - Actor-critic thinking for performance evaluation
 - **[Adobe Commerce](https://github.com/rafaelstz/adobe-commerce-dev-mcp)** — MCP to interact with Adobe Commerce GraphQL API, including orders, products, customers, etc.
@@ -1329,6 +1330,7 @@ search, and comprehensive file analysis.
 - **[Strava](https://github.com/r-huijts/strava-mcp)** - Connect to the Strava API to access activity data, athlete profiles, segments, and routes, enabling fitness tracking and analysis with Claude.
 - **[Strava API](https://github.com/tomekkorbak/strava-mcp-server)** - MCP server for Strava API to retrieve one's activities
 - **[Stripe](https://github.com/atharvagupta2003/mcp-stripe)** - This MCP allows integration with Stripe for handling payments, customers, and refunds.
+- **[Styx](https://github.com/timmx7/styx)** - The first MCP-native AI gateway with intelligent auto-routing. One endpoint for 65+ models across OpenAI, Anthropic, Google, and Mistral. Send `model: "styx:auto"` and a 9-signal classifier picks the optimal model in real-time — simple queries go to cheap models, complex reasoning goes to frontier models, saving 60-80% on AI costs. Self-hosted with Docker in 3 commands. Built-in dashboard for cost and latency tracking, auto-failover between providers, and BYOK support. Go router with <1ms overhead. `npx styx-mcp-server` for instant Claude Code and Cursor integration. ([npm](https://www.npmjs.com/package/styx-mcp-server))
 - **[Substack/Medium](https://github.com/jonathan-politzki/mcp-writer-substack)** - Connect Claude to your Substack/Medium writing, enabling semantic search and analysis of your published content.
 - **[System Health](https://github.com/thanhtung0201/mcp-remote-system-health)** - The MCP (Multi-Channel Protocol) System Health Monitoring is a robust, real-time monitoring solution designed to provide comprehensive health metrics and alerts for remote Linux servers.
 - **[SystemSage](https://github.com/Tarusharma1/SystemSage)** - A powerful, cross-platform system management and monitoring tool for Windows, Linux, and macOS.