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.
68 results after 1 active filters. Remove any one below without losing the rest of the cut.
OData Service for namespace microsoft.graph
Microsoft Graph is a unified API into Microsoft 365 data — mail, calendar, Teams, OneDrive, directory — the entry point for enterprise Microsoft integrations.
Petfinder
Petfinder is dedicated to helping pets find homes, another resource to get pets adopted.
PlaceBear
Placeholder bear pictures.
PlaceDog
Placeholder Dog pictures
RandomDog
Random pictures of dogs.
RandomFox
Random pictures of foxes.
RescueGroups
Adoption-related data API with no authentication required.
Slack Web API
Slack Web API lets apps read and post messages, manage channels, and upload files — the foundation for Slack bots and integrations.
Spotify Web API
Spotify Web API lets apps search tracks, manage playlists, and control playback — the base layer for music integrations and recommendations.
Square Connect API
Square Connect API offers online and in-person payments, orders, inventory, and customer management — built for SMBs in retail and food service.
Stripe API
Payment and commerce infrastructure API covering card payments, subscriptions, marketplaces, and disputes.
The Dog
A public service all about Dogs, free to use when making your fancy new App, Website or Service.
The Plaid API
Plaid API connects to user bank accounts to pull transactions, balances, and identity — primarily serving fintech apps in US, CA, UK, EU.
Twilio - Api
Twilio's core API for voice calls, SMS, Verify, and other programmable communications, billed per usage.
Waifu.im
Get waifu pictures from an archive of over 4000 images and multiple tags.
Waifu.pics
Image sharing platform for anime images.
xeno-canto
Bird recordings
YouTube Data API v3
YouTube Data API v3 lets apps query channels, videos, playlists, and comments — the standard entry point for YouTube integrations and analytics.
Zoo Animals
Facts and pictures of zoo animals.
Zoom API
Zoom API creates meetings, manages participants, and fetches recordings or transcripts — the foundation for Zoom integrations and bots.