generated: '2026-08-23'
method: probed
source: https://login.inrupt.com/.well-known/openid-configuration
docs: https://docs.inrupt.com/guides/authentication-in-solid
issuer: https://login.inrupt.com
note: >-
  Inrupt's Solid OpenID Provider advertises three scopes and no resource-level permission scopes.
  This is by design and is the most important thing to understand about authorizing against ESS:
  authorization is NOT carried in the OAuth scope. A token grants an identity (the WebID); what that
  identity may read or write is decided separately by Access Control Policies on the resource and by
  Access Grants, which are W3C Verifiable Credentials issued by the data subject. There is therefore
  no scope reference page to enumerate, and the absence of granular scopes is not a documentation gap.
scopes:
- name: openid
  description: Standard OpenID Connect scope requesting an ID token.
  required: true
- name: offline_access
  description: Requests a refresh token so a session can be restored without re-authenticating.
- name: webid
  description: >-
    Solid-OIDC scope requesting the webid claim, which binds the token to the user's WebID URI. Present
    in both scopes_supported and claims_supported.
authorization_model:
  identity_scopes: OAuth/OIDC scopes above
  resource_authorization:
  - mechanism: Access Control Policy (ACP)
    docs: https://docs.inrupt.com/security/authorization/acp
    description: Policies on the Access Control Resource attached to each Pod resource.
  - mechanism: Access Requests and Access Grants
    docs: https://docs.inrupt.com/security/authorization/access-requests-grants
    description: >-
      Verifiable Credentials issued by the data subject naming grantee, resource, access modes and
      purpose, with expiry and revocation. As of ESS 3.0 a grant acts as a receipt checked server-side.
  access_modes:
  - read
  - write
  - append
  - control
  mcp_restriction: >-
    The MCP Resource Service currently supports only the read access mode for requestAccess and
    hasMatchingAccessGrant.
token_endpoint_auth_methods:
- client_secret_basic
- client_secret_post
grant_types:
- authorization_code
- refresh_token
- client_credentials
pkce:
- plain
- S256
dpop_signing_algs:
- RS256
- ES256
dynamic_client_registration: https://login.inrupt.com/registration