generated: '2026-07-18'
method: searched
source: https://www.blume.com/.well-known/openid-configuration
notes: >-
  Authentication for the blume.com storefront is provided by the Shopify Customer
  Account API (OAuth2 authorization_code with PKCE + OpenID Connect). Discovered
  live from the store's OIDC discovery document. This is the buyer/customer auth
  surface; agent commerce over the UCP MCP endpoint additionally requires a UCP
  agent profile handshake.
summary:
  types: [oauth2, openIdConnect]
  oauth2_flows: [authorizationCode]
  pkce: S256
  token_endpoint_auth: client_secret_basic
schemes:
  - name: ShopifyCustomerAccountOIDC
    type: openIdConnect
    issuer: https://shopify.com/authentication/345800755
    openIdConnectUrl: https://www.blume.com/.well-known/openid-configuration
    authorization_endpoint: https://shopify.com/authentication/345800755/oauth/authorize
    token_endpoint: https://shopify.com/authentication/345800755/oauth/token
    end_session_endpoint: https://shopify.com/authentication/345800755/logout
    jwks_uri: https://shopify.com/authentication/345800755/.well-known/jwks.json
    id_token_signing_alg: [RS256]
    grant_types: [authorization_code, refresh_token, 'urn:ietf:params:oauth:grant-type:jwt-bearer']
    code_challenge_methods: [S256]
    scopes:
      - openid
      - email
      - customer-account-api:full
      - customer-account-mcp-api:full
    sources: [well-known/blume-openid-configuration.json]