diff --git a/README.md b/README.md
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@@ -244,6 +244,7 @@ Servers for accessing many apps and tools through a single MCP server.
 - [skillselion/skillselion-mcp](https://github.com/skillselion/skillselion-mcp) [![skillselion/skillselion-mcp MCP server](https://glama.ai/mcp/servers/skillselion/skillselion-mcp/badges/score.svg)](https://glama.ai/mcp/servers/skillselion/skillselion-mcp) 📇 ☁️ - Search thousands of community-vetted Claude Code skills, MCP servers and marketplaces from the [Skillselion](https://skillselion.com) catalog, ranked by real install counts + GitHub stars. `load_skill` fetches a real SKILL.md mid-task. Install: `npx -y skillselion-mcp`.
 - [singhpratech/crimson-crab-mcp-template](https://github.com/singhpratech/crimson-crab-mcp-template) [![singhpratech/crimson-crab-mcp-template MCP server](https://glama.ai/mcp/servers/singhpratech/crimson-crab-mcp-template/badges/score.svg)](https://glama.ai/mcp/servers/singhpratech/crimson-crab-mcp-template) 🦀 🏠 🍎 🪟 🐧 - A ready-to-clone Rust MCP server that calls Anthropic's Claude API via the crimson-crab SDK. Exposes an `ask_claude` tool. MIT/Apache-2.0.
 - [forcedreamai/forcedream-mcp](https://github.com/forcedreamai/forcedream-mcp) [![forcedreamai/forcedream-mcp MCP server](https://glama.ai/mcp/servers/forcedreamai/forcedream-mcp/badges/score.svg)](https://glama.ai/mcp/servers/forcedreamai/forcedream-mcp) 🎖️ 📇 ☁️ - Discover, invoke, and cryptographically verify AI agents on a paid agent marketplace. 13 tools spanning code generation (6-module engineering verification), security scanning (OSV.dev + GitGuardian), and lead scoring (8 real sources). Every result is Ed25519-signed and independently verifiable -- no trust in the platform required. Install: `npx -y @forcedream/mcp-server`.
+- [mcccsm/x402-list-mcp](https://github.com/mcccsm/x402-list-mcp) [![mcccsm/x402-list-mcp MCP server](https://glama.ai/mcp/servers/mcccsm/x402-list-mcp/badges/score.svg)](https://glama.ai/mcp/servers/mcccsm/x402-list-mcp) 📇 ☁️ - Find and vet x402 payment APIs before your agent pays one: search and rank listed services, live uptime and health windows, per-endpoint USD pricing, and on-chain-verified facilitator settlement volume, over the public x402-list directory. Free REST API, no auth for reads. `npx -y x402-list-mcp`. Web: [x402-list.com](https://x402-list.com).
 
 ### 🚀 <a name="aerospace-and-astrodynamics"></a>Aerospace & Astrodynamics