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PayAPI Market MCP MCP server

An official MCP server for the PayAPI Market x402 marketplace that allows AI agents to discover, list, and retrieve details for settlement-verified APIs. It provides read-only search capabilities and HTTP discovery endpoints, enabling agents to find third-party APIs and initiate payments in USDC on Base without manual sign-ups.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by PayAPI Market
MCP endpoint (Streamable HTTP)
https://payapi.market/mcp
Vendor documentation

What you can do with it

  • Search the PayAPI marketplace for available APIs
  • List a new API on the marketplace
  • Retrieve HTTP discovery information for an API
  • Find settlement-verified APIs for agent use
Tools advertised by the last live check:
  • search_apis
  • list_apis
  • get_api

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http payapi-market-mcp https://payapi.market/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add payapi-market-mcp --url https://payapi.market/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable payapi-market-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "payapi-market-mcp": {
      "url": "https://payapi.market/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.
Cline configuration
{
  "mcpServers": {
    "payapi-market-mcp": {
      "type": "streamableHttp",
      "url": "https://payapi.market/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start payapi-market-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "payapi-market-mcp": {
      "type": "http",
      "url": "https://payapi.market/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http payapi-market-mcp https://payapi.market/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "payapi-market-mcp": {
      "url": "https://payapi.market/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "payapi-market-mcp": {
      "serverUrl": "https://payapi.market/mcp"
    }
  }
}

Other commerce servers

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