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OpenAPI Specification

openapi: 3.2.0
info:
  title: Quartermaster Http Errors API
  version: 1.6.0
  description: Small, reliable utility APIs for AI agents. Paid endpoints charge per call in USDC over the x402 protocol (HTTP 402 flow) - no accounts, no API keys. Free endpoints are open.
  contact:
    url: https://quartermaster.surewhynot.app
servers:
- url: https://quartermaster.surewhynot.app
tags:
- name: Http Errors
paths:
  /v1/http-errors/{code}:
    get:
      summary: Structured HTTP status reference
      description: Meaning, common causes, fixes, and retry guidance for an HTTP status code.
      parameters:
      - name: code
        in: path
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: Status entry
          content:
            application/json:
              schema:
                type: object
        '402':
          description: Payment required
          content:
            application/json:
              schema:
                type: object
        '404':
          description: Unknown code
          content:
            application/json:
              schema:
                type: object
      x-payment:
        protocol: x402
        price: $0.001
        currency: USDC
        note: Unpaid requests receive 402 Payment Required with machine-readable payment requirements.
      tags:
      - Http Errors
      operationId: getV1HttpErrorsByCode
      x-operation-id-source: derived
  /v1/http-errors:
    get:
      summary: Index of documented HTTP status codes (free)
      responses:
        '200':
          description: Code index
          content:
            application/json:
              schema:
                type: object
      tags:
      - Http Errors
      operationId: getV1HttpErrors
      x-operation-id-source: derived
externalDocs:
  description: 'Buyer quickstart: how to pay with x402'
  url: https://quartermaster.surewhynot.app/buyers