# MetaMesh-UGA — The MCP Operating System > MetaMesh-UGA is a serverless, edge-native gateway that lets AI agents discover, verify, route and call 13,000+ Model Context Protocol (MCP) tools through a single endpoint. Discovery and a free monthly quota of tool calls are free; beyond the quota, agents pay per call via Stripe prepaid credit or x402 (USDC on Base). ## For AI agents — connect in one step - Add this MCP endpoint to any MCP client (Claude, Windsurf, Cursor, Antigravity): https://api.metamesh-uga.dev/mcp - Transport: streamable-http (JSON-RPC 2.0) and legacy SSE. - No account required to start. Use `tools/list` to discover and `tools/call` to execute. ## How to use it - Discover tools (free): `POST https://api.metamesh-uga.dev/mcp` with `{"jsonrpc":"2.0","id":1,"method":"tools/list"}` - Semantic search (free): call the native tool `metamesh.search_tools` with `{ "query": "" }` - Call a tool: `POST https://api.metamesh-uga.dev/mcp` with `{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"","arguments":{}}}` - REST equivalent: `POST https://api.metamesh-uga.dev/v1/call` with `{ "tool": "", "params": {} }` ## Pricing model (freemium) - Free: tool discovery/search always free, plus a free monthly quota of tool calls. - Paid after quota: $0.001 per call (volume from $0.0005). Pay with: - Stripe prepaid credit (fiat): register an agent, then `POST /v1/agent/topup`. - x402 micropayments (USDC on Base): send an `X-PAYMENT` header; on HTTP 402 read the `accepts` requirements. ## Key endpoints - MCP hub: https://api.metamesh-uga.dev/mcp - Tool catalog (REST): https://api.metamesh-uga.dev/v1/tools - Tool execution (REST): https://api.metamesh-uga.dev/v1/call - Agent registration: https://api.metamesh-uga.dev/v1/agent/register - Stripe top-up: https://api.metamesh-uga.dev/v1/agent/topup - Billing info: https://api.metamesh-uga.dev/v1/billing/info - x402 info: https://api.metamesh-uga.dev/v1/x402/info - API docs: https://api.metamesh-uga.dev/docs ## Links - Website: https://metamesh-uga.dev - Dashboard: https://dashboard.metamesh-uga.dev - Official MCP Registry: https://registry.modelcontextprotocol.io/?q=dev.metamesh-uga - Source: https://github.com/SiouxTXT/metamesh-uga