Miyokos Authentication

generated: '2026-07-20'
method: searched
source: https://miyokos.com/.well-known/openid-configuration and /.well-known/oauth-authorization-server
summary: >-
  Authentication is Shopify Customer Accounts (OpenID Connect / OAuth 2.0).
  There is no first-party developer API key program; the identity layer is
  provided by Shopify for the storefront's customer accounts and for UCP
  agent-commerce authorization.
schemes:
- type: openIdConnect
  name: shopify-customer-account-oidc
  issuer: https://shopify.com/authentication/5819545
  authorization_endpoint: https://shopify.com/authentication/5819545/oauth/authorize
  token_endpoint: https://shopify.com/authentication/5819545/oauth/token
  end_session_endpoint: https://shopify.com/authentication/5819545/logout
  jwks_uri: https://shopify.com/authentication/5819545/.well-known/jwks.json
  response_types_supported:
  - code
  grant_types_supported:
  - authorization_code
  - refresh_token
  - 'urn:ietf:params:oauth:grant-type:jwt-bearer'
  code_challenge_methods_supported:
  - S256
  token_endpoint_auth_methods_supported:
  - client_secret_basic
  id_token_signing_alg_values_supported:
  - RS256
  subject_types_supported:
  - public
  scopes_supported:
  - openid
  - email
  - customer-account-api:full
  - customer-account-mcp-api:full
  claims_supported:
  - iss
  - sub
  - aud
  - exp
  - iat
  - nonce
  - sid
  - email
  - email_verified
pkce: required (S256)
notes: >-
  Agent commerce (UCP MCP) is unauthenticated for browsing/discovery; checkout
  requires contemporaneous buyer approval routed through Shop Pay rather than a
  client credential.