Clerk

Clerk Billing API

Billing-related endpoints for managing statements and payment attempts.

Documentation GitHub OpenAPI

Business capability

Subscription Billing & Revenue Management BC-4250

Operations 16

GET /users/{user_id}/billing/subscription Retrieve a User's Billing Subscription #

GET /users/{user_id}/billing/credits Retrieve a User's Credit Balance #

POST /users/{user_id}/billing/credits Adjust a User's Credit Balance #

GET /organizations/{organization_id}/billing/subscription Retrieve an Organization's Billing Subscription #

GET /organizations/{organization_id}/billing/credits Retrieve an Organization's Credit Balance #

POST /organizations/{organization_id}/billing/credits Adjust an Organization's Credit Balance #

GET /billing/plans List All Billing Plans #

GET /billing/prices List All Billing Prices #

POST /billing/prices Create a Custom Billing Price #

GET /billing/subscription_items List All Subscription Items #

DELETE /billing/subscription_items/{subscription_item_id} Cancel a Subscription Item #

POST /billing/subscription_items/{subscription_item_id}/extend_free_trial Extend Free Trial for a Subscription Item #

POST /billing/subscription_items/{subscription_item_id}/price_transition Create a Price Transition for a Subscription Item #

GET /billing/statements List All Billing Statements #

GET /billing/statements/{statementID} Retrieve a Billing Statement #

GET /billing/statements/{statementID}/payment_attempts List Payment Attempts for a Billing Statement #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Clerk Backend Billing API
  x-logo:
    url: https://clerk.com/_next/image?url=%2Fimages%2Fclerk-logo.svg&w=96&q=75
    altText: Clerk docs
    href: https://clerk.com/docs
  contact:
    email: support@clerk.com
    name: Clerk Platform Team
    url: https://clerk.com/support
  description: 'The Clerk REST Backend API, meant to be accessed by backend servers.


    ### Versions


    When the API changes in a way that isn''t compatible with older versions, a new version is released.

    Each version is identified by its release date, e.g. `2025-04-10`. For more information, please see Clerk API Versions.


    Please see https://clerk.com/docs for more information.'
  version: '2025-11-10'
  termsOfService: https://clerk.com/terms
  license:
    name: MIT
    url: https://github.com/clerk/openapi-specs/blob/main/LICENSE
servers:
- url: https://api.clerk.com/v1
security:
- bearerAuth: []
tags:


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# Full source: https://raw.githubusercontent.com/api-evangelist/clerk-com/refs/heads/main/openapi/clerk-com-billing-api-openapi.yml