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.
1080 results in the full search view. Start narrowing from the rail when the field is still too broad.
0x
API for querying token and pool stats across various liquidity pools.
18F
Unofficial US Federal Government API development providing open data interfaces.
1Forge
Forex currency market data
1Forge Finance APIs
1Forge Finance API provides real-time stock / forex / crypto quotes — targeting traders and financial app developers.
1inch
API for querying decentralize exchange
1Password Connect
REST API interface for 1Password Connect.
1pt
A simple URL shortener with no authentication required.
24 Pull Requests
Project to promote open source collaboration during December.
42matters
No description.
4chan
Simple image-based bulletin board dedicated to a variety of topics
7digital
API of Music store 7digital
7Timer!
Weather, especially for Astroweather
A Bíblia Digital
Do not worry about managing the multiple versions of the Bible
Access Analyzer
AWS IAM Access Analyzer API analyzes IAM resource policies for over-privileged access or external access — proactively surfaces security risks.
Account and Transaction API Specification
UK Open Banking Account Information API (AIS) lets authenticated third parties read user bank account balance, transactions, and metadata with user consent.
Account API
Configure eBay seller account policies, payments program settings, KYC data, and related account resources.
Account API
This API is used for the classic integration.
Accountants General, Tripura
APIs provided by Accountants General, Tripura.
Accounting API
Welcome to the Accounting API.
AccuWeather
Weather and forecast data
Acko General Insurance Limited
Insurance policies issued by Acko General Insurance can be fetched by citizens in their Digilocker accounts.
AcreLens
Land suitability scoring API for any US property: off-grid, rural, recreational, investment
Actinia Grass GIS
Actinia is an open source REST API for geographical data that uses GRASS GIS.
Adafruit IO REST API
The Adafruit IO HTTP API provides access to your Adafruit IO data from any programming language or hardware environment that can speak HTTP.