generated: '2026-07-18' method: searched source: https://bloomthis.co/.well-known/openid-configuration notes: >- Auth is provided by the Shopify Customer Account API (OpenID Connect / OAuth 2.0), discovered live at /.well-known/openid-configuration and /.well-known/oauth-authorization-server. The UCP MCP shopping endpoint layers buyer-approval consent on top for agent-driven checkout. summary: types: [oauth2, openIdConnect] oauth2_flows: [authorizationCode] pkce: [S256] grant_types: [authorization_code, refresh_token, 'urn:ietf:params:oauth:grant-type:jwt-bearer'] schemes: - name: ShopifyCustomerAccountOIDC type: openIdConnect issuer: https://shopify.com/authentication/7814423 openIdConnectUrl: https://bloomthis.co/.well-known/openid-configuration authorization_endpoint: https://shopify.com/authentication/7814423/oauth/authorize token_endpoint: https://shopify.com/authentication/7814423/oauth/token end_session_endpoint: https://shopify.com/authentication/7814423/logout jwks_uri: https://shopify.com/authentication/7814423/.well-known/jwks.json token_endpoint_auth_methods_supported: [client_secret_basic] id_token_signing_alg_values_supported: [RS256] code_challenge_methods_supported: [S256] sources: [well-known/bloomthis-openid-configuration.json] - name: UCPBuyerApproval type: consent description: >- Agent-driven checkout through the UCP MCP endpoint requires contemporaneous buyer approval at the moment of payment; agents must not complete payment without explicit consent. sources: [well-known/bloomthis-ucp.json, llms/bloomthis-llms.txt]