Data as of Sep 14, 2026 · Based on 3,293,187 AI responses across 10,525 prompts · See how Parse measures this
OpenAPIopenapi.comOpenapi is the largest certified API marketplace that helps businesses accelerate digital transformation by connecting to hundreds of web services and high-quality data with transparent pricing and no annual fees. It offers over 400 API services across categories like AI, automotive, fintech, real estate, and more, with multi-language developer documentation, Postman testing, and GitHub access, plus a codeless option via MCP. The platform emphasizes secure, reliable, and scalable integrations and highlights metrics such as 100M+ total requests and 14,486+ total users.
The market map · 5 of 100 labelled
API Documentation & Developer Portal Platforms →43%positive
comprehensivemachine-readablestandardinteractiverecommendedclearessentialindustry standard
Excerpts where OpenAPI appeared in the AI's answer
OpenAPI integration — use the OpenAPI description as a machine-readable source of truth and generate the reference layer from it where possible.
OpenAPI/Swagger experience and familiarity with generated reference documentation.
Excerpts where OpenAPI appeared in the AI's answer
OpenAPI / Swagger: Use Swagger Editor or Fern to explicitly declare and document multiple versions of your contracts side-by-side.
OpenAPI/Swagger: Standardizes API definitions, enabling documented version control.
Excerpts where OpenAPI appeared in the AI's answer
OpenAPI / Swagger Import: Check if the provider has an OpenAPI, Swagger, or RAML file.
OpenAPI / Swagger Conversion (Non-AI, but gold standard): If the API provides an OpenAPI/Swagger specification
