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> /v1/apis · THE FREE API DIRECTORY

Public APIs[0311]

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

30 of 311 APIs · page 3 / 11CLEAR FILTERS ↻
// ENVIRONMENT0061

Climatiq

Calculate the environmental footprint created by a broad range of emission-generating activities

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// SPORTS & FITNESS0062

Cloudbet

Official Cloudbet API provides real-time sports odds and betting API to place bets programmatically

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// MACHINE LEARNING0063

Cloudmersive

Image captioning, face recognition, NSFW classification

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DOCUMENTS & PRODUCTIVITY0064

Cloudmersive Document and Data Conversion

HTML/URL to PDF/PNG, Office documents to PDF, image conversion

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// TEXT ANALYSIS0065

Cloudmersive Natural Language Processing

Natural language processing and text analysis

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// EMAIL0066

Cloudmersive Validate

Validate email addresses, phone numbers, VAT numbers and domain names

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// PHONE0067

Cloudmersive Validate

Validate international phone numbers

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// MACHINE LEARNING0068

Cohere

Harness the power of language understanding. Join the developers and businesses who are using Cohere to generate, categorize and organize text at a scale that was previously unimaginable.

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// CRYPTOCURRENCY0069

CoinStats

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

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// WEATHER0070

ColorfulClouds

Weather

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// BUSINESS0071

CompanyEnrich

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

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// SECURITY0072

Complete Criminal Checks

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

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// VIDEO0073

Compress Video API

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

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DEVELOPMENT0074

Contentful Images

Used to retrieve and apply transformations to images

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// CURRENCY EXCHANGE0075

Convert Currency to Multiple Currencies

Convert currencies from a source currency to multiple target currencies.

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DOCUMENTS & PRODUCTIVITY0076

Convert HTML to PDF API

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

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// PHOTOGRAPHY0077

Convert Images to PDF API

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

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DOCUMENTS & PRODUCTIVITY0078

Convert RSS to JSON

Transform raw RSS data into structured JSON

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DOCUMENTS & PRODUCTIVITY0079

Convert Speech to Text API

This API converts any speech to text multiple languages and dialects

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// TEXT ANALYSIS0080

Convert Text to Speech API

This API converts any text to speech automatically

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DOCUMENTS & PRODUCTIVITY0081

Convert Word to PDF

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

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// AUTHENTICATION & AUTHORIZATION0082

Corbado

Passkey-first authentication

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// GEOCODING0083

CountryStateCity

World countries, states, regions, provinces, cities & towns in JSON, SQL, XML, YAML, & CSV format

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// CRYPTOCURRENCY0084

CryptoMarket

Cryptocurrencies Trading platform

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// DEVELOPMENT0085

CSC to JSON API

Convert CSV files to JSON with this API. Ideal for developers who want to automate data workflows and integrate structured data

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// TRANSPORTATION0086

CTS

CTS Realtime API

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// CURRENCY EXCHANGE0087

Currencyapi

Currency Conversion API and cryptocurrency prices, updated minutely

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// CURRENCY EXCHANGE0088

CurrencyFreaks

Provides current and historical currency exchange rates with free plan 1K requests/month

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// CURRENCY EXCHANGE0089

CurrencyScoop

Real-time and historical currency rates JSON API

AUTH: APIKEYHTTPSCORS: YESOPEN ↗
// NEWS0090

Currents

Latest news published in various news sources, blogs and forums

AUTH: APIKEYHTTPSCORS: YESOPEN ↗