Development APIs
Browse 155 free Development APIs for your next project.
Browse 155 free Development APIs for your next project.
Showing 155 APIs
Project to promote open source collaboration during December
Free and simple counting service. You can use it to track page hits and specific events
Take programmatic screenshots of web pages from any website
Estimates the age from a first name
Multiples services and public APIs
World-class APIs in a single hub
Extract device details from user-agent string
Chrome based screenshot API for developers
Wikipedia for Web APIs, OpenAPI/Swagger specs for public APIs
Build and ship applications that scale using certified APIs for every use case
Automatically creates changelog entries from deployments by analyzing pull requests, commits, and code diffs across your GitHub repositories
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.
The Azure DevOps basic components of a REST API request/response pair
Build a mock Rest API endpoint in seconds
Bitbucket API
Schedule screenshots of web pages and sync them to your cloud
Control IoT Devices from Blynk IoT Cloud
Make A Free A.I Brain
API to personalize your product with logos, colors, and company info from any domain
An index of billions of pages in a single call
Headless browser API for automation, scraping, and more
Easily make screenshots of web pages in any screen size, as any device
Combine/batch & cache multiple HTTP requests to save on API quotas, speed up & simplify your app
Library info on CDNJS
One API for meeting bots on Zoom, Meet & Teams
Secure random string generator
Get IP Address, Timestamp, User Agent, Country Code, IATA, HTTP Version, TLS/SSL Version & More
Online Compiler for Various Languages
Used to retrieve and apply transformations to images
Get around the dreaded CORS error by using this proxy as a middle man
Corsfix lets you fetch any resource and bypass CORS errors, free for development environment
Convert CSV files to JSON with this API. Ideal for developers who want to automate data workflows and integrate structured data
Service to manage your databricks account,clusters, notebooks, jobs and workspaces
Status of all DigitalOcean services
Interact with Docker Hub
Domain name search to find all domains containing particular words/phrases/etc
A simple JSON store API
Create and manage customizable forms within your applications
A free tool to generate dummy JSON data for testing and prototyping.
Make your app fast and responsive for a global audience with Gcore CDN.
Scalable, secure, and reliable hybrid cloud services anywhere in the world.
Fast and resilient DNS hosting service by Gcore. Improve the performance and availability of your online business.
Estimates a gender from a first name
Dynamically capture full page screenshots of websites.
Trigger an email notification with a simple GET request
Get Published content into your Website, App or other embedded media
Make use of GitHub repositories, code and user info programmatically
Automate GitLab interaction programmatically
Image generation API
API to read, write, and format Google Docs documents
Google's mobile application development platform that helps build, improve, and grow app
Metadata for all families served by Google Fonts
API to read, write, and format Google Keep notes
API to read, write, and format Google Sheets data
API to read, write, and format Google Slides presentations
Online REST API for Testing and Prototyping
GraphQL and REST API Engine with built in Authorization
REST API to programmatically create apps, provision add-ons and perform other task on Heroku
A lightweight, fast, and customizable app for testing and designing APIs. A free, fast, and beautiful
Domains Data API for Developers
Test endpoints for client and server HTTP/2 protocol support
A Simple HTTP Request & Response Service
a free command-line HTTP client for the API era
Use your Android phone as an SMS gateway to send and receive SMS messages via a simple HTTP API
API for domain search, professional email finder, author finder and email verifier
Convert text to speech
IFTTT Connect API
Generate charts, QR codes and graph images
Retrieve structured data from a website or RSS feed
A free API client that allows you to design, debug, test, and mock APIs locally, on Git, or cloud.
Geographic location of an IP address or any domain name along with some other useful information
WHOIS domain name lookup
Geographic location of an IP address or any domain name along with some other useful information
A simple IP Address API
Another simple IP Address API
IP geolocation and threat data API
A free IP Geolocation and proxy/tor/VPN detection API
Package info and download stats on jsDelivr CDN
Convert JSON to JSONP (on-the-fly) for easy cross-domain data requests using client-side JavaScript
Free JSON storage service. Ideal for small scale Web apps, Websites and Mobile apps
Hassle-free JSON hosting. Convert your JSON file to an API in minutes at no cost.
Creates diagrams from textual descriptions
Unofficial REST API for choosealicense.com
Online Lua 5.1 Decompiler
Retrieve vendor details and other information regarding a given MAC address or an OUI
This API lets you upload and transform a Markdown file to HTML
Upload Markdown and get JSON with one API call
Fake Rest API for developers
Mock user defined test JSON for REST API endpoints
Get IP address information
Transform MySQL EXPLAIN output to interactive graphs
Estimate the nationality of a first name
Netlify is a hosting service for the programmable web
Network calculators, including subnets, DNS, binary, and security tools
Query information about your favorite Node.js libraries programmatically
Self-serve customer engagement solution for Push Notifications, Email, SMS & In-App
API for calculating and comparing metrics of different websites using Page Rank algorithm
The All-in-one API Platform
A self-hostable API that returns randomized messages for past-due invoices
Piloterr web scraping API handles headless browsers, rotates proxies for you, and offers json-parsed data extraction
Pipedream is the fastest way to build powerful applications that connect all the services in your stack
Tool for testing APIs
Secure AI APIs in iOS - No SDK, Just Change Your API URL
API of self-hosted Proxmox VE. Address: https://your.server:8006/api2/json/ (configuring in installation process)
Scraping and crawling anticaptcha service
Rotating Proxy API that produces a working proxy on every request
Push notifications for Android & iOS
Realtime features
Create an easy to read QR code and URL shortener
Generate and decode / read QR code graphics
Static and Dynamic QR code generator with custom and unique QR code design
Integrate custom and unique looking QR codes into your system or workflow
Generate chart and graph images
Reverse AJAX service to notify clients
Lets you programmatically manage your Render services (web apps, APIs, and static sites) including deployments, scaling, and configuration
A hosted REST-API ready to respond to your AJAX requests
Returns RSS feed in JSON format using feed URL
Scraping API with Chrome fingerprint and residential proxies
Easily build scalable web scrapers
Undetectable web scraping API
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.
Headless Chrome scraping with a simple API
Proxy API for Web scraping
Screenshot API for developers that captures any URL in one HTTP request with predictable output
Create pixel-perfect website screenshots
Screenshot API, 1000 free requests per month
Convert URLs, HTML, or Markdown into PNG, JPEG, WebP, or PDF with a simple screenshot API
Screenshot and video capture API to transform any URL into high-quality images and recordings
Real-Time Google SERP API
Sent is a unified API for messaging across SMS and apps like WhatsApp
The Generate SEO Tags API generates all the most important META tags based on any content
Color conversion, complementary, grayscale and contrasted text
Check realtime Google SERP Rank of any keywords
SerpApi's Search API makes it easy and fast to scrape Google and other search engines
Service for generating data and executing logic to create various games and puzzles
Easy Google Sheets and Excel Online API
Easy google sheets integration
Project Sonar DNS Enumeration API
SonarQube REST APIs to detect bugs, code smells & security vulnerabilities
CSV to JSONL conversion API
Q&A forum for developers
A free CDN for developers
Scrape YouTube, web, and files into text. Get AI-ready, clean data for your next project.
Autogenerate images with template
Webhooks as a Service
Open-source localization (i18n) platform enabling you to translate you app fast
Api and service management platform
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.
Code compiler supporting 35+ languages mentioned at wandbox.org
Extract structured data from any public URL
Web Scraping API with built-in proxies and JS rendering
An API that scrapes music release data and renders it using different templates
Convert YAML to JSON (on-the-fly)
Web Scraping API that bypasses anti-bot solutions while offering JS rendering, and rotating proxies
API platform for Development, Deployment, and Docs - add auth, rate-limiting, and monetization fast