medical codes mcp server for ChatGPT

io.github.cyanheads/medical-codes-mcp-server

Offline US medical code lookup and crosswalk — ICD-10-CM/PCS, HCPCS Level II, RxNorm. Keyless.

client:ChatGPT transport:streamable-http runtime:npm tools:6

Install medical codes mcp server in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://medical-codes.caseyjhand.com/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs