generated: '2026-08-29' method: probed source: >- https://super73.com/.well-known/openid-configuration, /.well-known/oauth-authorization-server and /.well-known/oauth-protected-resource (all HTTP 200, 2026-08-29), plus live anonymous calls to /api/ucp/mcp and /api/2025-07/graphql.json summary: >- SUPER73's agent surfaces are tiered. Catalog and cart operations on the MCP endpoint, and read queries plus introspection on the Storefront GraphQL endpoint, require NO credential at all. Buyer-scoped operations (customer account, saved addresses, order retrieval) escalate to a full OpenID Connect authorization-code + PKCE flow hosted by Shopify on behalf of the merchant. Payment completion is additionally gated on contemporaneous human approval, which is a policy control rather than a credential. schemes: - id: anonymous type: none applies_to: - https://super73.com/api/ucp/mcp (tools/list, catalog, cart) - https://super73.com/api/2025-07/graphql.json (introspection and read queries) - https://super73.com/products.json and the other read-only storefront JSON endpoints verified: probed note: Confirmed by successful unauthenticated calls on 2026-08-29. - id: shopify-customer-account-oidc type: openIdConnect flow: authorization_code pkce: S256 issuer: https://shopify.com/authentication/13743231 openid_configuration: https://super73.com/.well-known/openid-configuration authorization_endpoint: https://shopify.com/authentication/13743231/oauth/authorize token_endpoint: https://shopify.com/authentication/13743231/oauth/token jwks_uri: https://shopify.com/authentication/13743231/.well-known/jwks.json grant_types: - authorization_code - refresh_token - urn:ietf:params:oauth:grant-type:jwt-bearer response_types: [code] token_endpoint_auth_methods: [client_secret_basic, client_secret_post] id_token_signing_algs: [RS256] subject_types: [public] scopes: - openid - email - customer-account-api:full - customer-account-mcp-api:full applies_to: - buyer identity, saved addresses and payment methods - order retrieval (get_order) note: >- The protected resource https://super73.com declares bearer_methods_supported ["header"] and names this issuer as its authorization server, so RFC 9728 protected-resource metadata is served correctly. - id: shop-pay-delegated type: delegated applies_to: [payment] note: >- The store's own agent instructions direct personal shopping agents to route payment through the Shop skill (https://shop.app/SKILL.md) and Shop Pay so the agent never handles card data, and state that agents must not complete payment without explicit buyer consent. verified: searched source: https://super73.com/agents.md eu_variant: note: >- eu.super73.com serves its own OIDC metadata for SUPER73 BV with a separate Shopify issuer; the model is identical. openid_configuration: https://eu.super73.com/.well-known/openid-configuration status: 200