> /v1/apis/category/development
Free Development APIs[159]
159 free public APIs in the Development category — 54 require no authentication, 158 support HTTPS, 87 have CORS enabled.
24 Pull Requests
Project to promote open source collaboration during December
Abacus
Free and simple counting service. You can use it to track page hits and specific events
Abstract Screenshot
Take programmatic screenshots of web pages from any website
Agent Gateway
34+ AI agent infrastructure services including memory, wallets, and scheduling
Agify.io
Estimates the age from a first name
ApicAgent
Extract device details from user-agent string
ApiFlash
Chrome based screenshot API for developers
API Grátis
Multiples services and public APIs
API League
World-class APIs in a single hub
APIs.guru
Wikipedia for Web APIs, OpenAPI/Swagger specs for public APIs
ApyHub: A Complete API Catalog
Build and ship applications that scale using certified APIs for every use case
AutoChangelog
Automatically creates changelog entries from deployments by analyzing pull requests, commits, and code diffs across your GitHub repositories
Autom
Our SERP API delivers lightning-fast Google search results at unbeatable prices. Built for developers who need reliable, scalable access to search data without the complexity of web scraping or CAPTCHA challenges.
Azure DevOps
The Azure DevOps basic components of a REST API request/response pair
Beeceptor
Build a mock Rest API endpoint in seconds
Bitbucket
Bitbucket API
Blitapp
Schedule screenshots of web pages and sync them to your cloud
Blynk-Cloud
Control IoT Devices from Blynk IoT Cloud
Brainshop.ai
Make A Free A.I Brain
Brand.dev
API to personalize your product with logos, colors, and company info from any domain
Brave Search API
An index of billions of pages in a single call
BrowserCat
Headless browser API for automation, scraping, and more
Browshot
Easily make screenshots of web pages in any screen size, as any device
Cache Horse
Combine/batch & cache multiple HTTP requests to save on API quotas, speed up & simplify your app
CDNJS
Library info on CDNJS
ChatterBox
One API for meeting bots on Zoom, Meet & Teams
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
Corsfix
Corsfix lets you fetch any resource and bypass CORS errors, free for development environment
CORS Proxy
Get around the dreaded CORS error by using this proxy as a middle man
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
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
Format JSON Online Dummy API
A free tool to generate dummy JSON data for testing and prototyping.
Form Creation API
Create and manage customizable forms within your applications
FormForge
Generate styled, accessible HTML forms from JSON definitions with validation
Gcore CDN
Make your app fast and responsive for a global audience with Gcore CDN.
Gcore Cloud
Scalable, secure, and reliable hybrid cloud services anywhere in the world.
Gcore DNS
Fast and resilient DNS hosting service by Gcore. Improve the performance and availability of your online business.
Genderize.io
Estimates a gender from a first name
Generate Full Webpage Screenshot
Dynamically capture full page screenshots of websites.
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
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
Hoppscotch
A lightweight, fast, and customizable app for testing and designing APIs. A free, fast, and beautiful
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
HTTPie
a free command-line HTTP client for the API era
httpSMS
Use your Android phone as an SMS gateway to send and receive SMS messages via a simple HTTP API
Hunter
API for domain search, professional email finder, author finder and email verifier
IBM Text to Speech
Convert text to speech
IFTTT
IFTTT Connect API
Image-Charts
Generate charts, QR codes and graph images
import.io
Retrieve structured data from a website or RSS feed
Insomnia
A free API client that allows you to design, debug, test, and mock APIs locally, on Git, or cloud.
IP2WHOIS Information Lookup
WHOIS domain name lookup
IP Details API
Geographic location of an IP address or any domain name along with some other useful information
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
IPLocate
IP geolocation and threat data API
IPQuery
A free IP Geolocation and proxy/tor/VPN detection 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
JSONsilo.com
Hassle-free JSON hosting. Convert your JSON file to an API in minutes at no cost.
Kroki
Creates diagrams from textual descriptions
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
Markdown to HTML API
This API lets you upload and transform a Markdown file to HTML
Markdown to JSON API
Upload Markdown and get JSON with one API call
MetaScrape
Extract metadata, Open Graph tags, and structured data from any URL
MicroENV
Fake Rest API for developers
Mocky
Mock user defined test JSON for REST API endpoints
MY IP
Get IP address information
MySQL Visual EXPLAIN
Transform MySQL EXPLAIN output to interactive graphs
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 programmatically
Olostep
AI-native web search, scraping, and crawling API that delivers clean, structured, real-time web data. Used by top AI companies
OneSignal
Self-serve customer engagement solution for Push Notifications, Email, SMS & In-App
OpenAPIHub
The All-in-one API Platform
Open Page Rank
API for calculating and comparing metrics of different websites using Page Rank algorithm
PayUs-as-a-Service (PUaaS)
A self-hostable API that returns randomized messages for past-due invoices
Piloterr
Piloterr web scraping API handles headless browsers, rotates proxies for you, and offers json-parsed data extraction
PipeDream
Pipedream is the fastest way to build powerful applications that connect all the services in your stack
Postman
Tool for testing APIs
Proxed AI
Secure AI APIs in iOS - No SDK, Just Change Your API URL
Proxmox VE API
API of self-hosted Proxmox VE. Address: https://your.server:8006/api2/json/ (configuring in installation process)
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
Pusher Channels
Realtime features
QR code
Create an easy to read QR code and URL shortener
QR code
Generate and decode / read QR code graphics
QR code Generator
Static and Dynamic QR code generator with custom and unique QR code design
Qrcode Monkey
Integrate custom and unique looking QR codes into your system or workflow
QuickChart
Generate chart and graph images
Rejax
Reverse AJAX service to notify clients
Render API
Lets you programmatically manage your Render services (web apps, APIs, and static sites) including deployments, scaling, and configuration
ReqRes
A hosted REST-API ready to respond to your AJAX requests
RSS to JSON
Returns RSS feed in JSON format using feed URL
ScrapeNinja
Scraping API with Chrome fingerprint and residential proxies
ScraperApi
Easily build scalable web scrapers
scraperBox
Undetectable web scraping API
Scrapfly
Scrapfly is an enterprise-grade solution providing Web Scraping API that aims to simplify the scraping process by managing everything: real browser rendering, rotating proxies, and fingerprints (TLS, HTTP, browser) to bypass all major anti-bots.
ScrapingAnt
Headless Chrome scraping with a simple API
ScrapingDog
Proxy API for Web scraping
ScreenshotAPI.net
Create pixel-perfect website screenshots
Screenshotbase
Screenshot API, 1000 free requests per month
ScreenshotOne.com
Convert URLs, HTML, or Markdown into PNG, JPEG, WebP, or PDF with a simple screenshot API
Screenshot Scout
Screenshot API for developers that captures any URL in one HTTP request with predictable output
Scrnify
Screenshot and video capture API to transform any URL into high-quality images and recordings
SearchApi
Real-Time Google SERP API
Sent.dm
Sent is a unified API for messaging across SMS and apps like WhatsApp
SEO Score
Comprehensive SEO audit with 28 checks, scoring, and prioritized recommendations
SEO Tags Generator API
The Generate SEO Tags API generates all the most important META tags based on any content
Serialif Color
Color conversion, complementary, grayscale and contrasted text
SerpApi - Search API
SerpApi's Search API makes it easy and fast to scrape Google and other search engines
SERP Rank Checker
Check realtime Google SERP Rank of any keywords
Shadify
Service for generating data and executing logic to create various games and puzzles
Sheet2API
Easy Google Sheets and Excel Online API
Sheetsu
Easy google sheets integration
Sonar
Project Sonar DNS Enumeration API
SonarQube
SonarQube REST APIs to detect bugs, code smells & security vulnerabilities
SQLable
CSV to JSONL conversion API
StackExchange
Q&A forum for developers
Statically
A free CDN for developers
Supadata
Scrape YouTube, web, and files into text. Get AI-ready, clean data for your next project.
Supportivekoala
Autogenerate images with template
Svix
Webhooks as a Service
Tolgee
Open-source localization (i18n) platform enabling you to translate you app fast
Tyk
Api and service management platform
UserAgent
User agent parsing API is designed to help you better understand and interact with your users. By identifying browser, device, and OS data from user agent strings, this API empowers you with accurate, real-time insights into your audience.
Wandbox
Code compiler supporting 35+ languages mentioned at wandbox.org
WebScraping.AI
Web Scraping API with built-in proxies and JS rendering
Web Scraping API
Extract structured data from any public URL
YADG
An API that scrapes music release data and renders it using different templates
YAMLine
Convert YAML to JSON (on-the-fly)
ZenRows
Web Scraping API that bypasses anti-bot solutions while offering JS rendering, and rotating proxies
Zuplo
API platform for Development, Deployment, and Docs - add auth, rate-limiting, and monetization fast
// FREQUENTLY ASKED
What are the best free Development APIs?
The directory tracks 159 free public Development APIs. Top picks include 24 Pull Requests, Abacus, Abstract Screenshot, Agent Gateway, Agify.io — see the full list above, all free to use.
Are there free Development APIs without authentication?
54 of 159 Development APIs require no authentication and can be used immediately without an API key.
Do these APIs support HTTPS?
158 of 159 Development APIs support HTTPS.