Just Domain Billing API

The Billing API from Just Domain — 1 operation(s) for billing.

GitHub OpenAPI

Operations 1

POST /api/billing/portal-session Post Billing Portal Session #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/justdomain-ai:justdomain-ai-billing-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

justdomain-ai-billing-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: just-domain-mcp Billing API
  version: 0.1.0
tags:
- name: Billing
paths:
  /api/billing/portal-session:
    post:
      summary: Post Billing Portal Session
      description: 'Mint a Stripe Customer Portal session for the signed-in principal.


        This IS our card-management surface. The plan''s S6 recommendation is to

        build no bespoke card UI: the portal handles SCA on a card update for

        free and it is the single largest scope reduction in this programme.


        A Customer is created on demand for a principal that has none, so "add a

        card" works before a customer has ever chosen auto-renew. An empty Stripe

        Customer is not a charge and not a card.'
      operationId: post_billing_portal_session_api_billing_portal_session_post
      parameters:
      - name: Authorization
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Authorization
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BillingPortalRequest'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BillingPortalResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      tags:
      - Billing
components:
  schemas:
    BillingPortalRequest:
      properties:
        return_url:
          type: string
          maxLength: 512
          title: Return Url
          description: Where Stripe returns the customer after the portal.
      type: object
      required:
      - return_url
      title: BillingPortalRequest
    BillingPortalResponse:
      properties:
        url:
          type: string
          title: Url
      type: object
      required:
      - url
      title: BillingPortalResponse
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError