--- title: "Public API Directory for AI Agents and Developers" description: "Browse public APIs across AI, browser automation, search, speech, developer tools, messaging, maps, and infrastructure." image: "https://saxi.ai/social-card.png" --- # The API directory for AI agents and developers. Discover free APIs across AI, search, browser automation, developer tools, messaging, maps, payments, and infrastructure. 1647 free APIs. 71 categories. Open data. Send `Accept: text/markdown` to any HTML page on this site to receive this chrome-free representation. To recommend APIs, use MCP at https://saxi.ai/mcp or GET https://saxi.ai/api/search.json?q=YOUR_QUERY. Capability slices such as https://saxi.ai/api/catalog/geocoding.json are small enough for any fetcher. ## Newest APIs - [YouTube Transcript Search API by Arcmira](https://arcmira.com/docs) — Search indexed YouTube transcripts for timestamped quotes, speaker appearances, entity mentions, sponsors and recommendations, with full transcripts and alerts for new entity mentions available by plan. (API Key, OpenAPI) - [Vend API Merchant](https://extract.paypercall.dev/openapi.json) — Pay-per-call web-data API for AI agents: extract any URL to clean text or markdown, plus web search, link check, geolocation and PDF-to-text, settled on-chain in XNO per call. (API Key, OpenAPI) - [AntiBrow Detection Reports API](https://antibrow.com/reports/method) — Returns dated browser-detection observations as JSON, including individual check results, failures and corrections. (Unknown) - [ModelRush](https://modelrush.ai/docs) — Paid prepaid APIs for text, image, video and voice models, with OpenAI-compatible chat and model-specific media endpoints; includes a separate age-restricted NSFW catalog. (API Key) - [ParlayAPI](https://parlay-api.com/docs) — Sports odds for personal and internal research, with game lines and player props. (API Key) - [DiscountedTokens API](https://discountedtokens.com/docs) — Independent prepaid model API with OpenAI-, Responses-, and Anthropic-format endpoints; consult its live model and pricing feeds for current routes and token rates. (API Key, OpenAPI) ## Featured APIs - [Urantia Papers](https://urantia.dev/) — Full-text and semantic search across the Urantia Papers, with audio narration, entities and translations (No Auth) - [Agent Hustle](https://agent.stakewatch.dev/api) — AI web services: scraping, research, screenshots, translation, summarization (API Key) - [Exa API](https://exa.ai/docs/reference/search-api-guide) — AI search, contents, answer, and research API for agent web search and grounded retrieval workflows. (API Key, OpenAPI) - [Starveri API](https://api.starveri.net/docs) — OpenAI-compatible GPT/Codex API gateway with model discovery, instant keys, and token pricing around one-third of OpenAI-style API costs. (API Key, OpenAPI) - [HelloSalut](https://www.fourtonfish.com/hellosalut/hello) — Get hello translation following user language (No Auth) - [OpenMercantil](https://openmercantil.es/api/documentacion) — Independent public-data API for Spanish company search, BORME registry-event timelines, source traceability and public-source business context. (No Auth, OpenAPI) - [CrowdSorcerer](https://crowdsourcerer.rebaselabs.online/docs) — Web research, entity enrichment, document parsing, code execution, LLM generation, PII detection (API Key) - [DiscountedTokens API](https://discountedtokens.com/docs) — Independent prepaid model API with OpenAI-, Responses-, and Anthropic-format endpoints; consult its live model and pricing feeds for current routes and token rates. (API Key, OpenAPI) - [Firecrawl API](https://docs.firecrawl.dev/api-reference/v2-introduction) — Web scraping, crawling, search, browser, and agent API for turning websites into LLM-ready data. (API Key) ## Collections - [Best APIs for AI Agents](https://saxi.ai/collections/best-apis-for-ai-agents/) — The best APIs for AI agents — search, browser automation, speech, translation, messaging, memory, and LLM inference. (573 APIs) - [Developer Tool APIs](https://saxi.ai/collections/developer-tool-apis/) — APIs for CI/CD, testing, monitoring, code analysis, and infrastructure. (242 APIs) - [Search and RAG APIs](https://saxi.ai/collections/search-and-rag-apis/) — Search, retrieval, crawling, and discovery APIs for RAG pipelines and research workflows. (133 APIs) - [Browser Automation APIs](https://saxi.ai/collections/browser-automation-apis/) — APIs for taking screenshots, rendering pages, and automating browsers. (53 APIs) - [Translation APIs](https://saxi.ai/collections/translation-apis/) — Translation APIs for adding multilingual support to any application. (14 APIs) ## Top Capabilities - [Geocoding](https://saxi.ai/capability/geocoding/) — Geocoding, routing, and maps APIs for location-aware products and agents. (214 APIs) - [Search](https://saxi.ai/capability/search/) — Search and discovery APIs for content lookup, indexing, and retrieval pipelines. (114 APIs) - [Memory & Storage](https://saxi.ai/capability/memory-storage/) — Storage, file, and database APIs that agents can use as memory or state backends. (89 APIs) - [LLM](https://saxi.ai/capability/llm/) — Language model APIs for generation, reasoning, and agent orchestration. (43 APIs) - [Browser Automation](https://saxi.ai/capability/browser-automation/) — APIs for screenshots, browser control, web automation, and page rendering. (37 APIs) - [Email](https://saxi.ai/capability/email/) — Email APIs for transactional workflows, notifications, and agent actions. (36 APIs) - [Observability](https://saxi.ai/capability/observability/) — Logging, tracing, monitoring, and metrics APIs. (36 APIs) - [Scheduling](https://saxi.ai/capability/scheduling/) — Calendar and scheduling APIs for assistants and operational tooling. (28 APIs) - [Scraping](https://saxi.ai/capability/scraping/) — Scraping and crawling APIs for acquiring structured web data. (23 APIs) ## Machine feeds - MCP: https://saxi.ai/mcp - MCP server card: https://saxi.ai/.well-known/mcp/server-card.json - Search: https://saxi.ai/api/search.json?q=weather - Catalog slices: https://saxi.ai/api/catalog/index.json - Catalog: https://saxi.ai/api/catalog.json - Manifest: https://saxi.ai/api/index.json - llms.txt: https://saxi.ai/llms.txt ```json {"@context":"https://schema.org","@type":"WebSite","name":"saxi.ai","url":"https://saxi.ai","potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://saxi.ai/apis/?q={search_term_string}"},"query-input":"required name=search_term_string"}} {"@context":"https://schema.org","@type":"Organization","name":"saxi.ai","url":"https://saxi.ai","image":"https://saxi.ai/social-card.png","logo":"https://saxi.ai/favicon.svg","contactPoint":{"@type":"ContactPoint","email":"contact@adanos.org","contactType":"customer support"}} {"@context":"https://schema.org","@type":"ItemList","name":"Featured APIs","numberOfItems":9,"itemListElement":[{"@type":"ListItem","position":1,"name":"Urantia Papers","url":"https://urantia.dev/"},{"@type":"ListItem","position":2,"name":"Agent Hustle","url":"https://agent.stakewatch.dev/api"},{"@type":"ListItem","position":3,"name":"Exa API","url":"https://exa.ai/docs/reference/search-api-guide"},{"@type":"ListItem","position":4,"name":"Starveri API","url":"https://api.starveri.net/docs"},{"@type":"ListItem","position":5,"name":"HelloSalut","url":"https://www.fourtonfish.com/hellosalut/hello"},{"@type":"ListItem","position":6,"name":"OpenMercantil","url":"https://openmercantil.es/api/documentacion"},{"@type":"ListItem","position":7,"name":"CrowdSorcerer","url":"https://crowdsourcerer.rebaselabs.online/docs"},{"@type":"ListItem","position":8,"name":"DiscountedTokens API","url":"https://discountedtokens.com/docs"},{"@type":"ListItem","position":9,"name":"Firecrawl API","url":"https://docs.firecrawl.dev/api-reference/v2-introduction"}]} {"@context":"https://schema.org","@type":"ItemList","name":"Newest APIs","numberOfItems":6,"itemListElement":[{"@type":"ListItem","position":1,"name":"YouTube Transcript Search API by Arcmira","url":"https://arcmira.com/docs"},{"@type":"ListItem","position":2,"name":"Vend API Merchant","url":"https://extract.paypercall.dev/openapi.json"},{"@type":"ListItem","position":3,"name":"AntiBrow Detection Reports API","url":"https://antibrow.com/reports/method"},{"@type":"ListItem","position":4,"name":"ModelRush","url":"https://modelrush.ai/docs"},{"@type":"ListItem","position":5,"name":"ParlayAPI","url":"https://parlay-api.com/docs"},{"@type":"ListItem","position":6,"name":"DiscountedTokens API","url":"https://discountedtokens.com/docs"}]} ```