APIs.guru vs BrewPage

APIs.guru maintains the largest searchable directory of OpenAPI/Swagger definitions for public APIs, normalizing specs pulled from thousands of providers into one browsable catalogue. Its own machine-readable endpoint (api.apis.guru/v2) needs no key or account and returns the full listing plus individual OpenAPI documents as JSON or YAML. The project is open-source and entirely free, run as a community effort rather than a paid product.

BrewPage is a free, account-less content host: a POST to endpoints like brewpage.app/api/html turns HTML, Markdown, JSON, key-value pairs, or a whole multi-file site into a short public URL, protected by an anonymous owner token instead of a login. Pages default to a 15-day TTL (30-day max) and can be password-protected, and the project ships both an MCP server (brewpage-mcp on npm) and a Claude Code plugin for programmatic publishing.