CustomDomain

CustomDomain Billing API

Plans, metered usage, the subscription (trial, grace, invoices), checkout, and the billing portal.

GitHub OpenAPI

Operations 13

1 of 13 operations are conformant: apis.io called them with no credentials and the responses matched this contract. Checked 2026-11-12. how this works · status file

POST /billing/setup Start a Stripe Checkout session to save a payment method #
GET /plans Public plan catalog (plus billing {configured, mode}) conformant #
GET /billing/usage Metered domain usage, plan, and quota for the caller's tenant #
POST /billing/checkout Start a Stripe Checkout session for a self-serve plan #
POST /billing/portal Open a Stripe Billing Portal session #
GET /billing/notice Whether billing needs attention (every member) #
GET /billing/standing Whether the workspace may connect new domains #
GET /billing/status The workspace's subscription (owners and admins) #
GET /billing/invoices The workspace's recent invoices (owners and admins) #
POST /billing/grace:start Start a legacy Free workspace's grace period (owners and admins) #
POST /billing/checkout:confirm Record a completed plan checkout now (owners and admins) #
POST /billing/change-plan Move a running subscription to another self-serve plan #
POST /billing/promotion-code Apply a promotion code to the running subscription #

Documentation

📖
Documentation
https://docs.customdomain.ai/docs/api-reference

Specifications

⚙
OpenAPI
https://artifacts.apis.io/customdomain-ai/openapi/customdomain-ai-billing-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://artifacts.apis.io/customdomain-ai/json-schema/customdomain-ai-usage-schema.json
📊
JSONSchema
https://artifacts.apis.io/customdomain-ai/json-schema/customdomain-ai-billing-status-schema.json
📊
JSONSchema
https://artifacts.apis.io/customdomain-ai/json-schema/customdomain-ai-billing-notice-schema.json
📊
JSONSchema
https://artifacts.apis.io/customdomain-ai/json-schema/customdomain-ai-billing-standing-schema.json
📊
JSONSchema
https://artifacts.apis.io/customdomain-ai/json-schema/customdomain-ai-plan-schema.json
📊
JSONSchema
https://artifacts.apis.io/customdomain-ai/json-schema/customdomain-ai-billing-state-schema.json

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OpenAPI Specification

customdomain-ai-billing-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Customdomain Ai Billing API
  version: '1.0'
  license:
    name: Apache-2.0
    identifier: Apache-2.0
  description: 'Operations tagged Billing across 2 of this provider''s published API definitions: customdomain-ai-openapi-original.json, customdomain-ai-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://api.customdomain.ai/v1
  description: Hosted control-plane
- url: http://localhost:8080/v1
  description: Local control-plane
security:
- apiKey: []
tags:


# --- truncated at 32 KB (47 KB total) ---
# Full source: https://artifacts.apis.io/customdomain-ai/openapi/customdomain-ai-billing-api-openapi.yml