CurlShip Billing API

Paid-tier upgrades.

GitHub OpenAPI

Operations 3

1 of 3 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 /api/upgrade Upgrade a listing to a paid tier #
GET /api/featured The Featured auction spot conformant #
POST /api/feature Bid on the Featured spot #

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/curlship-com:curlship-com-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

curlship-com-billing-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Curlship Com Billing API
  version: 1.0.0
  contact:
    name: CurlShip Support
    email: support@curlship.com
    url: https://curlship.com
  license:
    name: Proprietary
  description: 'Operations tagged Billing across 2 of this provider''s published API definitions: curlship-com-openapi.json, curlship-com-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://curlship.com
  description: Production
tags:
- name: Billing
  description: Paid-tier upgrades.
paths:
  /api/upgrade:
    post:
      tags:
      - Billing
      summary: Upgrade a listing to a paid tier
      description: 'Returns a hosted checkout URL for the chosen tier. The listing must already exist. Rate limit: 30 upgrade requests/hour per IP.'
      operationId: upgradeListing
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - url
              - tier
              properties:
                url:
                  type: string
                  format: uri
                  example: https://yourapp.com
                tier:
                  type: string
                  enum:
                  - bronze
                  - bronze_lifetime
                  - silver
                  - gold
                  - platinum
                  description: bronze_lifetime is a one-time $30 purchase; the listing stays on bronze and never expires.
            example:
              url: https://yourapp.com
              tier: gold
      responses:
        '200':
          description: Checkout URL created
          content:
            application/json:
              schema:
                type: object
                properties:
                  ok:
                    type: boolean
                    example: true
                  checkout_url:
                    type: string
                    format: uri
        '409':
          description: Listing already has Bronze Lifetime
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '400':
          description: Invalid tier
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Listing not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          description: 'Rate limit exceeded. Retry-After is the wait in seconds. RateLimit-Policy names the window that was hit. RateLimit repeats that name with r=0 and t equal to Retry-After. Windows: submit 10 per 3600s, verify 30 per 3600s, checkout 30 per 3600s, edit 5 per 3600s per IP, edit-listing 3 per 86400s per listing.'
          headers:
            Retry-After:
              description: Seconds to wait before retrying.
              schema:
                type: integer
                minimum: 1
            RateLimit-Policy:
              description: 'The window that was hit. Example: "submit";q=10;w=3600.'
              schema:
                type: string
            RateLimit:
              description: 'Remaining quota. Example: "submit";r=0;t=120.'
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '503':
          description: Payments not configured for this tier
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
    servers:
    - url: https://curlship.com
      description: Production
  /api/featured:
    get:
      tags:
      - Billing
      summary: The Featured auction spot
      description: 'One listing sits above Platinum: the Featured spot, held by whoever paid the most (one-time payment). Returns the current holder (or `null`) and what taking the spot costs right now — the holder''s price plus $1, or $50 when nobody holds it.'
      operationId: getFeatured
      responses:
        '200':
          description: Current holder and next bid
          content:
            application/json:
              schema:
                type: object
                properties:
                  ok:
                    type: boolean
                    example: true
                  featured:
                    oneOf:
                    - $ref: '#/components/schemas/Listing'
                    - type: 'null'
                    description: The holding listing plus `amount_usd` (what they paid), or null.
                  next_bid_usd:
                    type: number
                    example: 50
                  next_bid_cents:
                    type: integer
                    example: 5000
                  currency:
                    type: string
                    example: USD
              example:
                ok: true
                featured: null
                next_bid_usd: 50
                next_bid_cents: 5000
                currency: USD
    servers:
    - url: https://curlship.com
      description: Production
  /api/feature:
    post:
      tags:
      - Billing
      summary: Bid on the Featured spot
      description: 'Returns a hosted checkout URL for a Featured bid. The listing must already exist; its registered email gets billed. `amount_usd` is optional and defaults to the current minimum (holder''s price + $1, or $50 with no holder); a lower bid is refused with 409. Pay and the spot is yours — always dofollow, no subscription — until someone outbids you. **No refund when outbid**: that is the game. Rate limit: 30 checkout requests/hour per IP.'
      operationId: bidFeatured
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - url
              properties:
                url:
                  type: string
                  format: uri
                  example: https://yourapp.com
                amount_usd:
                  type: number
                  example: 51
                  description: 'Your bid in USD, whole cents at most. Omit to bid the current minimum. Ceiling: $100,000.'
            example:
              url: https://yourapp.com
              amount_usd: 51
      responses:
        '200':
          description: Checkout URL created
          content:
            application/json:
              schema:
                type: object
                properties:
                  ok:
                    type: boolean
                    example: true
                  checkout_url:
                    type: string
                    format: uri
                  amount_usd:
                    type: number
                    example: 51
                  amount_cents:
                    type: integer
                    example: 5100
                  message:
                    type: string
        '400':
          description: Unreadable URL, non-numeric amount, or a bid above the $100,000 ceiling
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Listing not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '409':
          description: Bid below the current minimum (the response carries required_usd and current_usd), or the listing is not active
          content:
            application/json:
              schema:
                allOf:
                - $ref: '#/components/schemas/Error'
                - type: object
                  properties:
                    required_usd:
                      type: number
                      example: 51
                    current_usd:
                      type: number
                      example: 50
        '429':
          description: 'Rate limit exceeded. Retry-After is the wait in seconds. RateLimit-Policy names the window that was hit. RateLimit repeats that name with r=0 and t equal to Retry-After. Windows: submit 10 per 3600s, verify 30 per 3600s, checkout 30 per 3600s, edit 5 per 3600s per IP, edit-listing 3 per 86400s per listing.'
          headers:
            Retry-After:
              description: Seconds to wait before retrying.
              schema:
                type: integer
                minimum: 1
            RateLimit-Policy:
              description: 'The window that was hit. Example: "submit";q=10;w=3600.'
              schema:
                type: string
            RateLimit:
              description: 'Remaining quota. Example: "submit";r=0;t=120.'
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '503':
          description: Featured product not configured
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
    servers:
    - url: https://curlship.com
      description: Production
components:
  schemas:
    Listing:
      type: object
      properties:
        id:
          type: integer
          example: 2076
        url:
          type: string
          format: uri
          example: https://yourapp.com/
        link:
          type: string
          format: uri
          example: https://yourapp.com/?ref=curlship
          description: The URL a visitor is actually sent to — url plus tracking params. Free listings carry ?ref=curlship; paid ones carry the owner's utm_*/ref params (set via POST /api/edit-request tracking).
        tier:
          type: string
          enum:
          - free
          - bronze
          - silver
          - gold
          - platinum
        title:
          type:
          - string
          - 'null'
          example: YourApp — ship faster
        description:
          type:
          - string
          - 'null'
        image:
          type:
          - string
          - 'null'
          format: uri
        has_badge:
          type: boolean
          description: True if a dofollow link back to curlship.com was found on the site.
        created_at:
          type:
          - string
          - 'null'
          format: date-time
          example: '2026-10-12T09:04:05Z'
          description: When the listing was created, UTC.
        category:
          oneOf:
          - type: object
            properties:
              slug:
                type: string
                example: developer-tools
                description: The leaf slug when classified that deep, else the group.
              name:
                type: string
                example: Developer tools
              group:
                type: string
                example: developer-tools
                description: The top-level group this listing belongs to.
          - type: 'null'
          description: The listing's category, or null while it is unclassified. Set by the off-server classifier — submitters cannot choose one.
    Error:
      type: object
      properties:
        ok:
          type: boolean
          example: false
        error:
          type: string
          example: url is required and must start with http
      required:
      - ok
      - error
externalDocs:
  description: Badge guide & instant verify
  url: https://curlship.com/badge
x-refined-from:
- curlship-com-openapi.json
- curlship-com-openapi.yml