APIs.guru
FreeLiveLast verified 24 Sept 2026
Machine-readable directory of OpenAPI specs for thousands of public APIs.
Example request
curl -s https://api.apis.guru/v2/list.json
Free tier, in plain English
Free, keyless access to the whole directory API with no published rate limit.
Alternatives in API Directories
Agent NexusSearchable registry of APIs, MCP servers, and CLIs that AI agents can call, with live health data.FreemiumAgentDealsSearch and compare developer tool free tiers, startup credits, and recent pricing changes.FreeAPI LeagueSingle-key hub bundling separate APIs for jokes, news, books, recipes, games and art search.FreemiumAPILayerMarketplace of 40+ separate REST APIs (currency, geolocation, weather, market data) under one key.FreemiumHOL Registry BrokerSearch and resolve AI agents, MCP servers, and protocols indexed across multiple public registries.Freemium