Hero Bread · Authentication Profile

Hero Bread Authentication

Authentication

Hero Bread secures its APIs with none, http, oauth2, and openIdConnect across 5 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the authorizationCode flow(s).

CompanyFood and BeverageConsumer Packaged GoodsRetailE-CommerceAgent CommerceModel Context ProtocolUniversal Commerce ProtocolShopifyDirect to Consumer

Methods: none, http, oauth2, openIdConnect Schemes: 5 OAuth flows: authorizationCode API key in:

Security Schemes

mcp-anonymous-discovery none

ucp-agent-profile http

scheme: none · in: request-body (meta.ucp-agent.profile)

shopify-agent-jwt http

scheme: bearer

shopify-customer-accounts-oauth2 oauth2

· flows: authorizationCode

shopify-customer-accounts-oidc openIdConnect

Source

Authentication Profile

generated: '2026-08-22'
method: probed
source: https://shop.hero.co/.well-known/oauth-authorization-server
docs: https://shopify.dev/docs/agents/get-started/authentication
note: >-
  Hero Bread publishes no OpenAPI, so this profile is built from live probes of the discovery
  documents and MCP endpoint on shop.hero.co rather than from securitySchemes. Two distinct auth
  postures are in play: the MCP commerce surface (anonymous discovery, JWT-bearing agent calls) and
  Shopify customer accounts (OAuth 2.0 / OIDC).
summary:
  types: [none, http, oauth2, openIdConnect]
  api_key_in: []
  oauth2_flows: [authorizationCode]
schemes:
- name: mcp-anonymous-discovery
  type: none
  applies_to:
  - 'POST https://shop.hero.co/api/ucp/mcp — initialize'
  - 'POST https://shop.hero.co/api/ucp/mcp — tools/list'
  - 'POST https://shop.hero.co/api/mcp — tools/list'
  evidence: 'probed 2026-08-22: HTTP 200 with no Authorization header, 13 tools returned'
- name: ucp-agent-profile
  type: http
  scheme: none
  in: request-body
  parameter: meta.ucp-agent.profile
  required: true
  description: >-
    Every tools/call must carry a resolvable UCP agent profile URI in meta.ucp-agent.profile. A
    missing or unreachable profile fails discovery before authentication is even evaluated.
  evidence: 'probed 2026-08-22: omitting it returns -32001 UCP discovery failed / invalid_profile_url'
- name: shopify-agent-jwt
  type: http
  scheme: bearer
  bearerFormat: JWT
  description: >-
    Transactional MCP tool calls require a Shopify-issued agent JWT. The server names the
    instructions in the error payload itself.
  docs: https://shopify.dev/docs/agents/get-started/authentication
  evidence: >-
    probed 2026-08-22: tools/call without a token returns -32000 "AuthenticationRequired" —
    "Unauthorized: A valid JWT is required to call <tool>."
- name: shopify-customer-accounts-oauth2
  type: oauth2
  flows:
  - flow: authorizationCode
    authorizationUrl: https://shopify.com/authentication/56010965185/oauth/authorize
    tokenUrl: https://shopify.com/authentication/56010965185/oauth/token
    scopes:
      openid: OpenID Connect authentication
      email: Buyer email address
      customer-account-api:full: Full access to the customer account API
      customer-account-mcp-api:full: Full access to the customer account MCP API
  pkce: S256
  grant_types: [authorization_code, refresh_token, 'urn:ietf:params:oauth:grant-type:jwt-bearer']
  token_endpoint_auth_methods: [client_secret_basic, client_secret_post]
  discovery: well-known/hero-bread-oauth-authorization-server.json
  source: https://shop.hero.co/.well-known/oauth-authorization-server
- name: shopify-customer-accounts-oidc
  type: openIdConnect
  openIdConnectUrl: https://shop.hero.co/.well-known/openid-configuration
  issuer: https://shopify.com/authentication/56010965185
  jwks_uri: https://shopify.com/authentication/56010965185/.well-known/jwks.json
  id_token_signing_alg_values_supported: [RS256]
  discovery: well-known/hero-bread-openid-configuration.json
protected_resource:
  resource: https://shop.hero.co
  authorization_servers: [https://shopify.com/authentication/56010965185]
  bearer_methods_supported: [header]
  source: https://shop.hero.co/.well-known/oauth-protected-resource

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