MCP server

Connect any MCP-compatible AI client to fin.codes' verified routing-number data. Remote endpoint (Streamable HTTP): https://mcp.fin.codes/mcp — legacy SSE: https://mcp.fin.codes/sse.

Tools

lookup_routing_number — the bank, use, and verification for a 9-digit number
verify_routing_number — is it bank-verified? with the proof
lookup_bank — a bank profile and its routing numbers
find_banks — search by name, state, or verification
explain_topic — ACH vs wire, how we verify, and more

See the JSON API for the same data over HTTP.

Routing data is sourced from official bank pages, FDIC and NCUA institution data, and public routing directories, current in this build as of August 2, 2026. Confirm routing or SWIFT details with the financial institution before sending money.