Search & Retrieval
Search
ParlayAPI
parlay-api.comSports odds for personal and internal research, with game lines and player props.
FreeAPI KeyHTTPSCORS UnknownOfficial
Newest APIs
Recently added community submissions with public docs, availability metadata, and validation checks already attached.
AI & ML
LLM
DiscountedTokens API
discountedtokens.comPrepaid OpenAI-, Responses-, and Anthropic-compatible API access to GPT-5.x-family language models.
Paid/TrialAPI KeyHTTPSCORS YesOfficialOpenAPI
Search & Retrieval
Search
Worklittle
worklittle.comJob search, over 4 million jobs.
FreeAPI KeyHTTPSCORS YesOfficialOpenAPI
Knowledge & Open Data
Scheduling
LottoLens PH Public PCSO Data
lottolensph.comFree read-only API for an unofficial Philippine PCSO results snapshot and normal draw schedules, with row-level provenance and explicit non-prediction limits.
FreeUnknownHTTPSCORS YesUnofficialOpenAPI
Developer Tools
LLMScraping
WebCrawlerAPI
webcrawlerapi.comAPI to scrape and crawl websites and extract clean, LLM-ready scrape markdown for AI agents, RAG pipelines, and knowledge bases.
FreeAPI KeyHTTPSCORS YesOfficial
Finance & Commerce
Bargo Congress Trades API
bargo.aiQuery normalized U.S. House and Senate STOCK Act transaction disclosures by ticker, member, chamber, transaction type, or date.
FreeAPI KeyHTTPSCORS YesOfficialOpenAPI
Featured APIs
The most useful APIs for building with AI, sorted by documentation quality, protocol support, and real-world utility.
AI & ML
EmbeddingsSearchTranslation
Urantia Papers
urantia.devFull-text and semantic search across the Urantia Papers, with audio narration, entities and translations
FreeNo AuthHTTPSCORS YesOfficial
AI & ML
Browser AutomationLLMScrapingSearch
Agent Hustle
agent.stakewatch.devAI web services: scraping, research, screenshots, translation, summarization
FreeAPI KeyHTTPSCORS YesOfficial
AI & ML
LLMSearch
Exa API
exa.aiAI search, contents, answer, and research API for agent web search and grounded retrieval workflows.
FreeAPI KeyHTTPSCORS UnknownOfficialOpenAPI
AI & ML
ChatLLMMessagingSearch
Starveri API
starveri.netOpenAI-compatible GPT/Codex API gateway with model discovery, instant keys, and token pricing around one-third of OpenAI-style API costs.
FreeAPI KeyHTTPSCORS UnknownOfficialOpenAPI
AI & ML
GeocodingTranslation
HelloSalut
fourtonfish.comGet hello translation following user language
FreeNo AuthHTTPSCORS UnknownOfficial
Search & Retrieval
Search
OpenMercantil
openmercantil.esIndependent public-data API for Spanish company search, BORME registry-event timelines, source traceability and public-source business context.
FreeNo AuthHTTPSCORS YesOfficialOpenAPI
AI & ML
Code ExecutionLLMOCRSearch
CrowdSorcerer
crowdsourcerer.rebaselabs.onlineWeb research, entity enrichment, document parsing, code execution, LLM generation, PII detection
FreeAPI KeyHTTPSCORS YesOfficial
AI & ML
LLM
DiscountedTokens API
discountedtokens.comPrepaid OpenAI-, Responses-, and Anthropic-compatible API access to GPT-5.x-family language models.
Paid/TrialAPI KeyHTTPSCORS YesOfficialOpenAPI
AI & ML
Browser AutomationLLMScrapingSearch
Firecrawl API
firecrawl.devWeb scraping, crawling, search, browser, and agent API for turning websites into LLM-ready data.
FreeAPI KeyHTTPSCORS UnknownOfficial
Collections
Hand-picked groups of APIs for common tasks — from browser automation and RAG pipelines to translation and speech.
Best APIs for AI Agents
The best APIs for AI agents — search, browser automation, speech, translation, messaging, memory, and LLM inference.
Developer Tool APIs
APIs for CI/CD, testing, monitoring, code analysis, and infrastructure.
Search and RAG APIs
Search, retrieval, crawling, and discovery APIs for RAG pipelines and research workflows.
Browser Automation APIs
APIs for taking screenshots, rendering pages, and automating browsers.
Translation APIs
Translation APIs for adding multilingual support to any application.
Top Capabilities
Find APIs by what they do — search, code execution, OCR, geocoding, and more.
Geocoding
Geocoding, routing, and maps APIs for location-aware products and agents.
Search
Search and discovery APIs for content lookup, indexing, and retrieval pipelines.
Memory & Storage
Storage, file, and database APIs that agents can use as memory or state backends.
LLM
Language model APIs for generation, reasoning, and agent orchestration.
Browser Automation
APIs for screenshots, browser control, web automation, and page rendering.
Email APIs for transactional workflows, notifications, and agent actions.
Observability
Logging, tracing, monitoring, and metrics APIs.
Scheduling
Calendar and scheduling APIs for assistants and operational tooling.
Scraping
Scraping and crawling APIs for acquiring structured web data.