API Evangelist enrichment overlay for the Listings API OpenAPI

overlay: 1.0.0
info:
  title: API Evangelist enrichment overlay for the Listings API OpenAPI
  version: 1.0.0
x-provenance:
  generated: '2026-09-03'
  method: generated
  source: openapi/listings-api-openapi.yaml plus docs.listingsapi.com (error-codes, rate-limits, webhooks)
extends: listings-api-openapi.yaml
actions:
  - target: $.info
    update:
      x-apis-io:
        provider: listings-api
        rate_limits: rate-limits/listings-api-rate-limits.yml
        error_catalog: errors/listings-api-problem-types.yml
        conventions: conventions/listings-api-conventions.yml
        webhooks: asyncapi/listings-api-webhooks.yml
        mcp: https://listingsapi.com/mcp
  - target: $.info.description
    update: >-
      Enrichment notes: responses use a GraphQL-style envelope (data.<operation>, relay cursor
      pagination via first/after and edges/pageInfo). Mutations can return field-level
      validation errors in data.<operation>.errors on HTTP 200 - always read that array on
      writes. 429 responses carry Retry-After plus retry_after_seconds and correlation_id in
      the body; per-plan limits are 10 req/min (Launch) and 50 req/min (Growth). 403/404/422/429
      are documented at https://docs.listingsapi.com/docs/error-codes but not enumerated
      per-operation in the source spec. No idempotency mechanism exists - retried writes can
      duplicate public posts or review replies.
  - target: $.components.securitySchemes.apiKey
    update:
      x-access-levels: [Read, Write]