402rates MCP MCP server

An official MCP server providing access to tokenized treasury yields and USDC settlement costs. It allows agents to query instrument states, view source history, and purchase paid data like RWA yields and full snapshots via USDC payments directly within the protocol, requiring no API key or account.

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 402rates

MCP endpoint (Streamable HTTP)

https://api.402rates.com/mcp/rates

Vendor documentation

What you can do with it

Query free instrument states and source history
Purchase RWA yields using USDC
Retrieve full instrument snapshots
Compare settlement costs across chains

Tools advertised by the last live check:

estimate_payment_costs
list_rwa_updates
compare_rwa_benchmark
compare_rwa_snapshots
list_capabilities
get_manifest
get_rwa_instrument
get_rwa_history
cheapest_settlement_chain
compare_settlement_costs
get_rwa_yields
get_rwa_instruments

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 402rates-mcp https://api.402rates.com/mcp/rates

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 402rates-mcp --url https://api.402rates.com/mcp/rates

Cursor

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

Cursor configuration

{
  "mcpServers": {
    "402rates-mcp": {
      "url": "https://api.402rates.com/mcp/rates"
    }
  }
}

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

VS Code

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

VS Code configuration

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

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 402rates-mcp https://api.402rates.com/mcp/rates

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": {
    "402rates-mcp": {
      "url": "https://api.402rates.com/mcp/rates"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "402rates-mcp": {
      "serverUrl": "https://api.402rates.com/mcp/rates"
    }
  }
}

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