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> /v1/apis · THE FREE API DIRECTORY

Public APIs[1580]

1,580 free public APIs across 52 categories. Filter by auth, CORS, HTTPS support — find what you need to build with.

30 of 1580 APIs
// CRYPTOCURRENCY0271

Coinremitter

Cryptocurrencies Payment & Prices

AUTH: APIKEYHTTPSCORS: UNKNOWNOPEN ↗
// CRYPTOCURRENCY0272

CoinStats

Blockchain and DeFi across 120+ chains, market, historical data, portfolio tracking, news, sentiment, MCP, and agent skills

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// SPORTS & FITNESS0273

CollegeFootballData.com

Unofficial detailed American college football statistics, records, and results API

AUTH: APIKEYHTTPSCORS: UNKNOWNOPEN ↗
// OPEN DATA0274

CollegeScoreCard.ed.gov

Data on higher education institutions in the United States

NO AUTHHTTPSCORS: UNKNOWNOPEN ↗
// DICTIONARIES0275

Collins

Bilingual Dictionary and Thesaurus Data

AUTH: APIKEYHTTPSCORS: UNKNOWNOPEN ↗
// GOVERNMENT0276

Colorado Information Marketplace

Colorado State Government Open Data

NO AUTHHTTPSCORS: UNKNOWNOPEN ↗
// WEATHER0277

ColorfulClouds

Weather

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// ART & DESIGN0278

ColorMagic

Color Palette Generator

NO AUTHHTTPSCORS: YESOPEN ↗
// ART & DESIGN0279

ColourLovers

Get various patterns, palettes and images

NO AUTHHTTPSCORS: UNKNOWNOPEN ↗
// GAMES & COMICS0280

Comic Vine

Comics

NO AUTHHTTPSCORS: UNKNOWNOPEN ↗
// TRANSPORTATION0281

Community Transit

Transitland API

NO AUTHHTTPSCORS: UNKNOWNOPEN ↗
// BUSINESS0282

CompanyEnrich

API for B2B company data enrichment, domain enrichment, and website enrichment

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// SECURITY0283

Complete Criminal Checks

Provides data of offenders from all U.S. States and Puerto Rico

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// VIDEO0284

Compress Video API

Compress video files through an asynchronous workflow, a practical API for large-scale or long-duration videos / tasks

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DEVELOPMENT0285

Contentful Images

Used to retrieve and apply transformations to images

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// CURRENCY EXCHANGE0286

Convert Currency to Multiple Currencies

Convert currencies from a source currency to multiple target currencies.

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DOCUMENTS & PRODUCTIVITY0287

Convert HTML to PDF API

This API converts any HTML (file, url, base64) to a PDF

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DOCUMENTS & PRODUCTIVITY0288

ConvertHub API

File Conversion API for Developers - Powerful REST API for file conversion. Convert documents, images, ebooks, and more. Simple integration, dev-friendly pricing.

AUTH: APIKEYHTTPSCORS: NOOPEN ↗
// PHOTOGRAPHY0289

Convert Images to PDF API

Convert any image to a PDF without losing quality with one API call

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DOCUMENTS & PRODUCTIVITY0290

Convert RSS to JSON

Transform raw RSS data into structured JSON

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DOCUMENTS & PRODUCTIVITY0291

Convert Speech to Text API

This API converts any speech to text multiple languages and dialects

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// TEXT ANALYSIS0292

Convert Text to Speech API

This API converts any text to speech automatically

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DOCUMENTS & PRODUCTIVITY0293

Convert Word to PDF

Convert a Word document (doc, docx, or ODF formats) to a PDF document

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// ART & DESIGN0294

Cooper Hewitt

Smithsonian Design Museum

AUTH: APIKEYHTTPSCORS: UNKNOWNOPEN ↗
// AUTHENTICATION & AUTHORIZATION0295

Corbado

Passkey-first authentication

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// SCIENCE & MATH0296

CORE

Access the world's Open Access research papers

AUTH: APIKEYHTTPSCORS: UNKNOWNOPEN ↗
// HEALTH0297

Coronavirus in the UK

UK Government coronavirus data, including deaths and cases by region

NO AUTHHTTPSCORS: UNKNOWNOPEN ↗
// ENTERTAINMENT0298

Corporate Buzz Words

REST API for Corporate Buzz Words

NO AUTHHTTPSCORS: YESOPEN ↗
// TRACKING0299

Correios

Integration to provide information and prepare shipments using Correio's services

AUTH: APIKEYHTTPSCORS: UNKNOWNOPEN ↗
// DEVELOPMENT0300

Corsfix

Corsfix lets you fetch any resource and bypass CORS errors, free for development environment

NO AUTHHTTPSCORS: YESOPEN ↗