Free Development APIs
Discover free development APIs for your next project.
All Development APIs
12024 Pull Requests
Project to promote open source collaboration during December
Agify.io
Estimates the age from a first name
API Grátis
Multiples services and public APIs
ApicAgent
Extract device details from user-agent string
ApiFlash
Chrome based screenshot API for developers
apilayer userstack
Secure User-Agent String Lookup JSON API
APIs.guru
Wikipedia for Web APIs, OpenAPI/Swagger specs for public APIs
Azure DevOps
The Azure DevOps basic components of a REST API request/response pair
Base
Building quick backends
Beeceptor
Build a mock Rest API endpoint in seconds
Bitbucket
Bitbucket API
Blague.xyz
La plus grande API de Blagues FR/The biggest FR jokes API
Blitapp
Schedule screenshots of web pages and sync them to your cloud
Blynk-Cloud
Control IoT Devices from Blynk IoT Cloud
Bored
Find random activities to fight boredom
Brainshop.ai
Make A Free A.I Brain
Browshot
Easily make screenshots of web pages in any screen size, as any device
CDNJS
Library info on CDNJS
Changelogs.md
Structured changelog metadata from open source projects
Ciprand
Secure random string generator
Cloudflare Trace
Get IP Address, Timestamp, User Agent, Country Code, IATA, HTTP Version, TLS/SSL Version & More
Codex
Online Compiler for Various Languages
Contentful Images
Used to retrieve and apply transformations to images
CORS Proxy
Get around the dreaded CORS error by using this proxy as a middle man
CountAPI
Free and simple counting service. You can use it to track page hits and specific events
Databricks
Service to manage your databricks account,clusters, notebooks, jobs and workspaces
DigitalOcean Status
Status of all DigitalOcean services
Docker Hub
Interact with Docker Hub
DomainDb Info
Domain name search to find all domains containing particular words/phrases/etc
ExtendsClass JSON Storage
A simple JSON store API
GeekFlare
Provide numerous capabilities for important testing and monitoring methods for websites
Genderize.io
Estimates a gender from a first name
GETPing
Trigger an email notification with a simple GET request
Ghost
Get Published content into your Website, App or other embedded media
GitHub
Make use of GitHub repositories, code and user info programmatically
Gitlab
Automate GitLab interaction programmatically
Gitter
Chat for Developers
Glitterly
Image generation API
Google Docs
API to read, write, and format Google Docs documents
Google Firebase
Google's mobile application development platform that helps build, improve, and grow app
Google Fonts
Metadata for all families served by Google Fonts
Google Keep
API to read, write, and format Google Keep notes
Google Sheets
API to read, write, and format Google Sheets data
Google Slides
API to read, write, and format Google Slides presentations
Gorest
Online REST API for Testing and Prototyping
Hasura
GraphQL and REST API Engine with built in Authorization
Heroku
REST API to programmatically create apps, provision add-ons and perform other task on Heroku
host-t.com
Basic DNS query via HTTP GET request
Host.io
Domains Data API for Developers
HTTP2.Pro
Test endpoints for client and server HTTP/2 protocol support
Httpbin
A Simple HTTP Request & Response Service
Httpbin Cloudflare
A Simple HTTP Request & Response Service with HTTP/3 Support by Cloudflare
Hunter
API for domain search, professional email finder, author finder and email verifier
IBM Text to Speech
Convert text to speech
Icanhazepoch
Get Epoch time
Icanhazip
IP Address API
IFTTT
IFTTT Connect API
Image-Charts
Generate charts, QR codes and graph images
import.io
Retrieve structured data from a website or RSS feed
ip-fast.com
IP address, country and city
IP2WHOIS Information Lookup
WHOIS domain name lookup
ipfind.io
Geographic location of an IP address or any domain name along with some other useful information
IPify
A simple IP Address API
IPinfo
Another simple IP Address API
jsDelivr
Package info and download stats on jsDelivr CDN
JSON 2 JSONP
Convert JSON to JSONP (on-the-fly) for easy cross-domain data requests using client-side JavaScript
JSONbin.io
Free JSON storage service. Ideal for small scale Web apps, Websites and Mobile apps
Kroki
Creates diagrams from textual descriptions
License-API
Unofficial REST API for choosealicense.com
Logs.to
Generate logs
Lua Decompiler
Online Lua 5.1 Decompiler
MAC address vendor lookup
Retrieve vendor details and other information regarding a given MAC address or an OUI
Micro DB
Simple database service
MicroENV
Fake Rest API for developers
Mocky
Mock user defined test JSON for REST API endpoints
MY IP
Get IP address information
Nationalize.io
Estimate the nationality of a first name
Netlify
Netlify is a hosting service for the programmable web
NetworkCalc
Network calculators, including subnets, DNS, binary, and security tools
npm Registry
Query information about your favorite Node.js libraries programatically
OneSignal
Self-serve customer engagement solution for Push Notifications, Email, SMS & In-App
Open Page Rank
API for calculating and comparing metrics of different websites using Page Rank algorithm
OpenAPIHub
The All-in-one API Platform
OpenGraphr
Really simple API to retrieve Open Graph data from an URL
oyyi
API for Fake Data, image/video conversion, optimization, pdf optimization and thumbnail generation
PageCDN
Public API for javascript, css and font libraries on PageCDN
Postman
Tool for testing APIs
ProxyCrawl
Scraping and crawling anticaptcha service
ProxyKingdom
Rotating Proxy API that produces a working proxy on every request
Pusher Beams
Push notifications for Android & iOS
QR code
Create an easy to read QR code and URL shortener
QR code
Generate and decode / read QR code graphics
Qrcode Monkey
Integrate custom and unique looking QR codes into your system or workflow
QuickChart
Generate chart and graph images
Random Stuff
Can be used to get AI Response, jokes, memes, and much more at lightning-fast speed
Rejax
Reverse AJAX service to notify clients
ReqRes
A hosted REST-API ready to respond to your AJAX requests
RSS feed to JSON
Returns RSS feed in JSON format using feed URL
SavePage.io
A free, RESTful API used to screenshot any desktop, or mobile website
ScrapeNinja
Scraping API with Chrome fingerprint and residential proxies
ScraperApi
Easily build scalable web scrapers
scraperBox
Undetectable web scraping API
scrapestack
Real-time, Scalable Proxy & Web Scraping REST API
ScrapingAnt
Headless Chrome scraping with a simple API
ScrapingDog
Proxy API for Web scraping
Screenshot
Take programmatic screenshots of web pages from any website
ScreenshotAPI.net
Create pixel-perfect website screenshots
Serialif Color
Color conversion, complementary, grayscale and contrasted text
serpstack
Real-Time & Accurate Google Search Results API
Sheetsu
Easy google sheets integration
SHOUTCLOUD
ALL-CAPS AS A SERVICE
Sonar
Project Sonar DNS Enumeration API
SonarQube
SonarQube REST APIs to detect bugs, code smells & security vulnerabilities
StackExchange
Q&A forum for developers
Statically
A free CDN for developers
Supportivekoala
Autogenerate images with template
Tyk
Api and service management platform
Wandbox
Code compiler supporting 35+ languages mentioned at wandbox.org
WebScraping.AI
Web Scraping API with built-in proxies and JS rendering
ZenRows
Web Scraping API that bypasses anti-bot solutions while offering JS rendering, and rotating proxies
FAQ
What are development APIs?
Development APIs are programming interfaces that allow developers to integrate development-related functionality into their applications, providing access to data and features specific to the development domain.
Are these development APIs really free?
Yes — all APIs listed here offer free tiers or are completely free to use. Some may have usage limits or require registration. Always check the specific API's documentation for detailed terms.
How do I get started with development APIs?
Choose an API that fits your needs, then visit its documentation page. Most APIs require an API key obtained through free registration. Follow the integration guides and examples provided.