generated: '2026-09-19'
method: searched
source: https://api.spacefrontiers.org/.well-known/oauth-authorization-server
docs: https://api.machinelibrary.ai/auth.md
sources:
- https://mcp.machinelibrary.ai/.well-known/oauth-protected-resource (scopes_supported [search])
- https://machinelibrary.ai/.well-known/oauth-protected-resource (scopes_supported [search])
- https://api.machinelibrary.ai/auth.md ("Scope and policies")
- https://machinelibrary.ai/llms.txt ("OAuth scopes (search)")
note: >-
  The OpenAPI declares no oauth2 securityScheme (derive-oauth-scopes.py correctly found nothing); OAuth 2.1 access
  tokens are accepted by the REST API through the bearer_auth http scheme ("Send the same API key, or an OAuth 2.0
  access token, as a Bearer token") and by the MCP server. The scope vocabulary therefore comes from the RFC 8414 /
  RFC 9728 metadata and auth.md, all provider-published and fetched live on 2026-09-19.
authorization_server: https://api.spacefrontiers.org
resources:
- https://mcp.machinelibrary.ai
- https://mcp.spacefrontiers.org
- https://machinelibrary.ai
- https://spacefrontiers.org
scope_count: 1
scopes:
- name: search
  description: Search the corpus and retrieve research documents using the user's account credits.
  source: https://api.machinelibrary.ai/auth.md ("Scope and policies")
  grants: [authorization_code, refresh_token, 'urn:workos:agent-auth:grant-type:claim', 'urn:ietf:params:oauth:grant-type:jwt-bearer']
  mcp_tools: [spacefrontiers_search_documents, spacefrontiers_search_social, spacefrontiers_fetch_document, spacefrontiers_search_in_document]
  note: The only scope offered; auth.md instructs clients to "request only search". Payment tools/endpoints are not covered by a distinct scope in the published metadata.
grant_types_supported:
- authorization_code
- refresh_token
- urn:ietf:params:oauth:grant-type:jwt-bearer
- urn:workos:agent-auth:grant-type:claim
pkce: S256
dynamic_client_registration: https://api.spacefrontiers.org/v2/oauth/register
token_endpoint_auth_methods_supported: [none]