generated: '2026-08-13'
method: probed
status: published
source: https://mcp.knownwell.com/mcp
ownership: >-
  This MCP server is served from knownwell.com, not 2x.com. 2X acquired Knownwell on
  2026-06-10 for more than $400M and Knownwell founder David DeWolf became 2X's CEO,
  announced by 2X on its own site at https://2x.com/press-release/2x-acquires-knownwell/,
  so the Knownwell hosts are 2X-operated API surfaces.
deployment:
  mode: remote
  endpoint: https://mcp.knownwell.com/mcp
  auth: oauth
  verified: probed
server:
  name: knownwell
  transport: http
  url: https://mcp.knownwell.com/mcp
  hosting: Google Cloud (server header "Google Frontend", x-cloud-trace-context present)
authorization:
  model: OAuth 2.1 authorization-code + PKCE
  protected_resource_metadata: https://mcp.knownwell.com/.well-known/oauth-protected-resource/mcp
  authorization_server: https://mcp.knownwell.com/
  authorization_endpoint: https://mcp.knownwell.com/authorize
  token_endpoint: https://mcp.knownwell.com/token
  registration_endpoint: https://mcp.knownwell.com/register
  revocation_endpoint: https://mcp.knownwell.com/revoke
  dynamic_client_registration: true
  pkce: [S256]
  grant_types: [authorization_code, refresh_token]
  scopes: [knownwell.read]
  bearer_methods: [header]
tools:
  status: gated
  note: >-
    tools/list is auth-gated. An unauthenticated JSON-RPC POST returns HTTP 401 with
    WWW-Authenticate: Bearer error="invalid_token", pointing at the protected-resource
    metadata. The live tool set and its per-tool inputSchema therefore require an
    authenticated introspection pass and are NOT recorded here. No tool list is asserted,
    because none was observed — see mcp/2x-tool-crosswalk.yml for the REST operations an
    agent can reach today via the documented API.
  discovered: []
x-evidence:
  fetched: '2026-08-13'
  probes:
  - url: https://mcp.knownwell.com/mcp
    method: POST
    body: '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
    status: 401
    www_authenticate: >-
      Bearer error="invalid_token", error_description="Authentication required",
      resource_metadata="https://mcp.knownwell.com/.well-known/oauth-protected-resource/mcp"
  - url: https://mcp.knownwell.com/.well-known/oauth-authorization-server
    status: 200
  - url: https://mcp.knownwell.com/.well-known/oauth-protected-resource/mcp
    status: 200
  - url: https://mcp.knownwell.com/
    status: 404