402registry MCP

An official MCP server for the 402registry service that allows AI agents to perform pay-per-check discoverability audits. It enables agents to check if a site is listed, retrieve audit reports, and view payment requirements for the x402 protocol, facilitating automated verification of AI crawler visibility and compliance.

Endpoint and access

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

No sign-inEndpoint checked 2026-10-19Operated by 402registry

MCP endpoint (Streamable HTTP)

https://402registry.com/mcp

Vendor documentation

What you can do with it

Check if a website is listed in the registry
Retrieve machine-readable audit reports
View x402 payment requirements for checks
Access the machine guide and selling status

Tools advertised by the last live check:

lookup_site
get_pricing
get_docs
get_service_status

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 402registry-mcp https://402registry.com/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 402registry-mcp --url https://402registry.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable 402registry-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "402registry-mcp": {
      "url": "https://402registry.com/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": {
    "402registry-mcp": {
      "type": "streamableHttp",
      "url": "https://402registry.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start 402registry-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "402registry-mcp": {
      "type": "http",
      "url": "https://402registry.com/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 402registry-mcp https://402registry.com/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": {
    "402registry-mcp": {
      "url": "https://402registry.com/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": {
    "402registry-mcp": {
      "serverUrl": "https://402registry.com/mcp"
    }
  }
}

Ground your agent in cited data

402registry MCP gives your agent tools. Koskamo gives it reviewed, cited facts to check its answers against. Add it as a second MCP server; public reads need no API key.

Connect Koskamo Browse datasets

See all 1,282

Do you run 402registry MCP?

Prove ownership with a DNS record, a well-known file, or your Official MCP Registry entry, and your edits publish immediately. Proofs are re-checked weekly; admins can still hide or remove a listing.

Claim this listing