Amphenol Authentication

generated: '2026-09-02'
method: probed
source: >-
  live probes of amphenol-automotive.com/.well-known/oauth-authorization-server,
  amphenol-automotive.com/.well-known/oauth-protected-resource and
  amphenol-industrial.com/wp-json/parts-direct-search/v1/search
provider: Amphenol
providerId: amphenol
description: >-
  Amphenol publishes no developer authentication documentation, and there is no API key
  programme, signup or console anywhere on its sites. Two authentication postures were
  nevertheless observed directly on live Amphenol endpoints, and they sit at opposite ends:
  one surface is fully anonymous, the other is a standards-compliant OAuth 2.1 flow.
schemes:
  - id: none
    type: none
    surface: Amphenol Industrial Parts Direct Search
    endpoint: https://amphenol-industrial.com/wp-json/parts-direct-search/v1/search
    description: >-
      No credential of any kind. A plain GET with a searchTerm query parameter returns HTTP 200
      and a JSON body of distributor stock rows. No API key, no bearer token, no cookie, no
      nonce, no Origin restriction was observed.
    evidence:
      url: https://amphenol-industrial.com/wp-json/parts-direct-search/v1/search?searchTerm=RADSOK
      status: 200
      content_type: application/json; charset=UTF-8
  - id: oauth2
    type: oauth2
    surface: Amphenol Automotive MCP server
    endpoint: https://amphenol-automotive.com/wp-json/mcp/mcp-oauth-server
    description: >-
      OAuth 2.0 authorization-code flow with PKCE, advertised through RFC 8414 authorization
      server metadata and RFC 9728 protected resource metadata. The token endpoint accepts
      public clients (token_endpoint_auth_methods_supported is ["none"]) and the server supports
      client ID metadata documents, so a client can register itself by URL rather than
      out-of-band. Bearer token is presented in the Authorization header.
    flows:
      authorizationCode:
        authorizationUrl: https://amphenol-automotive.com/oauth/authorize
        tokenUrl: https://amphenol-automotive.com/oauth/token
        revocationUrl: https://amphenol-automotive.com/oauth/revoke
        refreshSupported: true
        pkce:
          required: true
          methods:
            - S256
        scopes:
          mcp: Access to the Model Context Protocol resource
    bearer_methods_supported:
      - header
    evidence:
      url: https://amphenol-automotive.com/wp-json/mcp/mcp-oauth-server
      status: 401
      body: '{"code":"mcp_unauthorized","message":"MCP authentication required."}'
docs: null
docs_note: >-
  No authentication documentation is published. Both schemes above were established by probing,
  not by reading a page. www.amphenol.com returns HTTP 403 at the CDN edge to non-browser
  clients, so a documentation page there could not be checked by this run.
maintainers:
  - FN: API Evangelist
    email: info@apievangelist.com