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OpenAPI Specification

openapi: 3.2.0
info:
  title: Stamps.com API
  version: '2026-10-13'
  description: 'GENERATED FROM DOCUMENTATION by API Evangelist on 2026-10-13: 8 operation(s) read from 1 public documentation page(s) (each operation names its page in x-source). This is not the provider''s published contract; Stamps.com has published no machine-readable contract that the pipeline could find. Engine: local.'
  x-evidence-tiers:
    code-example: 0
    documentation: 8
    pages-with-code: 0
    pages-read: 1
  x-generated-from: documentation
  x-provenance: generated
  x-authored-by: API Evangelist
  x-generated: '2026-10-13'
  x-generator: generate-contract-from-docs.py
  x-engine: local
  x-sources:
  - https://developer.stamps.com/rest-api/reference/serav1.html
servers:
- url: https://api.stampsendicia.com/sera
tags:
- name: Stamps.com API
paths:
  /v1/{v1id}:
    get:
      operationId: get_v1_v1id
      tags:
      - Stamps.com API
      summary: Get Current Account Balance
      x-source: https://developer.stamps.com/rest-api/reference/serav1.html
      parameters:
      - name: v1id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Success (status as documented)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetV1V1IdResponse'
      x-evidence:
        kind: documentation
        collapsed_from: 2 example path(s) differing only at v1Id
    post:
      operationId: post_v1_v1id
      tags:
      - Stamps.com API
      summary: Create a Label
      x-source: https://developer.stamps.com/rest-api/reference/serav1.html
      parameters:
      - name: v1id
        in: path
        required: true
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PostV1V1IdRequest'
      responses:
        '201':
          description: Success (status as documented)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PostV1V1IdResponse'
      x-evidence:
        kind: documentation
        collapsed_from: 2 example path(s) differing only at v1Id
components:
  schemas:
    PostV1V1IdResponse:
      type: object
      properties:
        label_id:
          type: string
        tracking_number:
          type: string
        carrier:
          type: string
        service_type:
          type: string
        packaging_type:
          type: string
        estimated_delivery_days:
          type: string
        estimated_delivery_date:
          type: string
        shipment_cost:
          type: object
        account_balance:
          type: object
        labels:
          type: array
    GetV1V1IdResponse:
      type: object
      properties:
        amount_available:
          type: number
        max_balance_amount_allowed:
          type: number
        currency:
          type: string
    PostV1V1IdRequest:
      type: object
      properties:
        from_address:
          type: object
        return_address:
          type: object
        to_address:
          type: object
        service_type:
          type: string
        package:
          type: object
        ship_date:
          type: string
        is_test_label:
          type: boolean
      required:
      - from_address
      - to_address
      - service_type