generated: '2026-07-19'
method: searched
status: published
maturity: beta
source: https://manual.firstresonance.io/api/mcp-server-for-ai-agents-beta
description: First Resonance publishes an official hosted MCP (Model Context Protocol) server that lets
  AI agents operate ION Factory OS. It is currently in beta and available on staging only; production
  is not yet published. Authentication is OAuth 2.1 with Dynamic Client Registration (DCR) and PKCE (S256)
  against an ION account.
server:
  name: ion
  transport: http
  url: https://mcp.staging.buildwithion.com/mcp
  authorization_server: https://mcp.staging.buildwithion.com
  oauth:
    protocol: OAuth 2.1 DCR
    metadata: well-known/first-resonance-mcp-oauth-authorization-server.json
    authorization_endpoint: https://mcp.staging.buildwithion.com/authorize
    token_endpoint: https://mcp.staging.buildwithion.com/token
    registration_endpoint: https://mcp.staging.buildwithion.com/register
    code_challenge_methods_supported:
    - S256
    scopes_supported:
    - openid
    - offline_access
clients:
  claude:
    setup: Profile > Settings > Connectors > Add custom connectors
    url: https://mcp.staging.buildwithion.com
    requirement: Claude Pro or higher
  cursor:
    config: "{\n  \"mcpServers\": {\n    \"ion\": {\n      \"url\": \"https://mcp.staging.buildwithion.com/mcp\"\
      \n    }\n  }\n}\n"
    requirement: Active Cursor plan; Agent mode (not Ask)
tools:
  note: The provider does not enumerate a fixed tool list in the docs; it recommends asking the connected
    agent for its ION capabilities. Tools are backed by the ION GraphQL API surface (Runs, Parts, Procedures,
    inventory, mBOM/aBOM).
deployment:
  mode: remote
  endpoint: https://mcp.staging.buildwithion.com/mcp
  verified: probed
  probe: gated
  checked: '2026-09-11'
  source: wall re-adjudication 2026-09-11 (RFC 9728 / JSON-RPC envelope)
  probe_prior: wall
  probe_why: RFC 9728 challenge (host-wide OAuth-protected resource)