Modcloth · Authentication Profile

Modcloth Authentication

Authentication

Modcloth secures its APIs with oauth2 and openIdConnect across 2 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the authorizationCode, refreshToken, and jwt-bearer flow(s).

CompanyRetailE-commerceFashionApparelShopifyAgentic CommerceMCP
Methods: oauth2, openIdConnect Schemes: 2 OAuth flows: authorizationCode, refreshToken, jwt-bearer API key in:

Security Schemes

shopify-customer-account-oidc openIdConnect
ucp-agent-commerce application

Source

Authentication Profile

modcloth-authentication.yml Raw ↑ 
generated: '2026-07-20'
method: searched
source: https://modcloth.com/.well-known/openid-configuration
docs: https://modcloth.com/.well-known/oauth-authorization-server
summary:
  types: [oauth2, openIdConnect]
  oauth2_flows: [authorizationCode, refreshToken, jwt-bearer]
  pkce: S256
  notes: >-
    Two distinct auth surfaces. (1) Agent commerce over UCP/MCP at
    /api/ucp/mcp — public catalog/cart tools, buyer-approved checkout, agent
    identity via a UCP profile URI. (2) Customer-account OAuth 2.0 / OpenID
    Connect provided by Shopify (issuer https://shopify.com/authentication/55906042027)
    for authenticated shopper sessions and the Customer Account API/MCP.
    Read-only storefront JSON (products.json, collections) needs no auth.
schemes:
- name: shopify-customer-account-oidc
  type: openIdConnect
  openIdConnectUrl: https://modcloth.com/.well-known/openid-configuration
  issuer: https://shopify.com/authentication/55906042027
  authorization_endpoint: https://account.modcloth.com/authentication/oauth/authorize
  token_endpoint: https://account.modcloth.com/authentication/oauth/token
  jwks_uri: https://account.modcloth.com/authentication/.well-known/jwks.json
  end_session_endpoint: https://account.modcloth.com/authentication/logout
  grant_types: [authorization_code, refresh_token, "urn:ietf:params:oauth:grant-type:jwt-bearer"]
  response_types: [code]
  token_endpoint_auth_methods: [client_secret_basic]
  code_challenge_methods: [S256]
  id_token_signing_alg: [RS256]
  scopes_supported: [openid, email, "customer-account-api:full", "customer-account-mcp-api:full"]
  source: well-known/modcloth-openid-configuration.json
- name: ucp-agent-commerce
  type: application
  transport: mcp
  endpoint: https://modcloth.com/api/ucp/mcp
  note: >-
    UCP shopping service. Catalog/cart operations are open; checkout
    completion requires contemporaneous buyer approval (human-in-the-loop).
  source: well-known/modcloth-ucp.json