Find the right API
Use search when the broad directory stops being enough. Filter by category, auth, CORS, signup friction, and result freshness until the shortlist becomes obvious.
Start with category and auth when you know the integration shape. Use free, signup, and CORS flags when you are trying to remove setup friction.
Sort by verification or response time when the final call is about reliability, not just category fit.
351 results in the full search view. Start narrowing from the rail when the field is still too broad.
Twilio - Events
Twilio Events streams Twilio platform events (message delivery, call state changes, quota alerts) via a unified webhook bus — replacing scattered per-endpoint webhook configs.
Twilio - Flex
Twilio Flex is a programmable contact-center platform for call centers — agent desktop, IVR/ACD routing, and deep integration with Twilio's full communications stack.
Twilio - Frontline
Twilio Frontline is a mobile messaging app for field employees (sales, on-site staff) — chat with customers via WhatsApp/SMS using a work number, with full compliance audit trail.
Twilio - Insights
Twilio Voice Insights surfaces call-quality analytics — packet loss, jitter, MOS scores, per-participant diagnostics, and issue attribution for debugging WebRTC/SIP call quality.
Twitter API
Twitter API v1.1 is the discontinued old API (except a few enterprise endpoints) — new projects should use v2.
Twitter API v2
Twitter API v2 is the current recommended version — post tweets, query tweets, stream, user management. Since 2023 Elon's acquisition, prices increased dramatically with free tier restrictions.
Uniswap API (Subgraph)
Uniswap doesn't have traditional REST API — on-chain data is queried via The Graph's official Uniswap subgraphs (v2/v3/v4): pools, trades, liquidity, price history.
Upstash API
Upstash is serverless Redis / Kafka / Vector database — pay-per-request (no idle charge), HTTP API, edge-friendly; top choice for serverless apps.
VA Forms
Search VA forms, retrieve a form by name, and pull the PDF link or version metadata programmatically.
Vercel API
Vercel API provides programmatic access to the frontend cloud platform — deployments, domains, env vars, Edge Functions, Vercel Storage, Analytics.
Video Search Client
Bing Video Search queries videos across the open web (YouTube, Vimeo, Dailymotion, etc.) — filter by keyword, duration, resolution.
Visual Crossing Weather API
Visual Crossing Weather API provides global weather data — current conditions, 15-day forecast, 50 years of historical weather, by coordinates or address.
Visual Search Client
Bing Visual Search runs image-similarity queries — upload an image, get similar images, same-product matches across sites, related recommendations.
Waifu.im
Get waifu pictures from an archive of over 4000 images and multiple tags.
Waifu.pics
Image sharing platform for anime images.
Weaviate API
Weaviate is an open-source vector database — supports vector search + keyword search + built-in vectorization (OpenAI/Cohere/HuggingFace and other models).
Web Search Client
Bing Web Search is the general-purpose web search API — keyword queries return aggregated webpages, images, videos, news.
Wikimedia
Wikimedia API provides content access to Wikipedia, Wikidata, Commons, and other Wikimedia projects — articles, media files, structured data.
Wise API
Wise API (formerly TransferWise) provides low-cost international transfers — mid-market exchange rate + transparent fees, 5-10x cheaper than traditional SWIFT.
Wordnik
Wordnik API provides English dictionary data — definitions (multiple sources), synonyms/antonyms, etymology, example sentences, pronunciation, related words, word of the day.
WorkOS API
WorkOS API turns enterprise must-haves (SSO, SAML, SCIM, Audit Logs, Directory Sync) into APIs — letting SaaS support enterprise SAML in hours.
World Time API
World Time API is a free time-and-timezone API — query current UTC, local time, DST status, UTC offset by timezone, IP, or city.
Xata API
Xata is serverless Postgres with spreadsheet-style UI, full-text search, vector, and AI assistant — treats DB as a SaaS product.
xeno-canto
Bird recordings