Free Development APIs

Q: How many free Development APIs are there?

There are 215 free public Development APIs in the directory. 213 support HTTPS, 113 are confirmed to allow CORS and 105 need no API key.

Q: Which Development APIs work without an API key?

105 Development APIs need no authentication, including 24 Pull Requests, Agent Nexus, AgentPay Domain Lookup and Agify.io. You can call them straight away without signing up.

Q: Which Development APIs can I call from the browser?

APIs with CORS enabled can be called directly from front-end JavaScript. In Development, that includes 24 Pull Requests, Agent Nexus, AgentPay Domain Lookup and Agify.io.

215 free public Development APIs for developers. 213 support HTTPS, 113 allow CORS from the browser and 105 need no API key.

One account · one API key

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Showing 215 of 215 APIs

24 Pull Requests

Project to promote open source collaboration during December

No authHTTPSCORS

Aether Bridge

Autonomous agent team management and API workflow orchestration

apiKeyHTTPSCORS ?

Agent Nexus

Continuously probed registry of APIs, MCP servers and CLIs callable by agents

No authHTTPSCORS

AgentPay Domain Lookup

DNS records, WHOIS/RDAP, IP ownership and domain reports for AI agents, paid per call via x402

No authHTTPSCORS

Agify.io

Estimates the age from a first name

No authHTTPSCORS

Allscreenshots

Website screenshots and PDFs with full-page capture, dark mode and ad blocking

apiKeyHTTPSNo CORS

Amazonscraperapi

Amazon product, search & batch scraping API with residential proxies (1000 free)

apiKeyHTTPSNo CORS

AmberOne

Turn any website into a build-ready Android, iOS, PWA or Electron app project

apiKeyHTTPSNo CORS

AnswerLine

Answers, citations and sources from AI assistants and Google surfaces through one API

apiKeyHTTPSCORS

API Grátis

Multiples services and public APIs

No authHTTPSCORS ?

API Tool Calls

API Tool Calls: Home cost planners, page to Markdown, SEO checks and recalls

No authHTTPSNo CORS

ApicAgent

Extract device details from user-agent string

No authHTTPSCORS

ApiFlash

Chrome based screenshot API for developers

apiKeyHTTPSCORS ?

APIs.guru

Wikipedia for Web APIs, OpenAPI/Swagger specs for public APIs

No authHTTPSCORS ?

APIzone

Independent uptime & status monitoring for 200+ popular APIs

No authHTTPSCORS

Aquanode

Live GPU rental prices and availability across nine cloud providers

No authHTTPSNo CORS

Azure DevOps

The Azure DevOps basic components of a REST API request/response pair

apiKeyHTTPSCORS ?

Base

Building quick backends

apiKeyHTTPSCORS

Beeceptor

Build a mock Rest API endpoint in seconds

No authHTTPSCORS

Bitbucket

Bitbucket API

OAuthHTTPSCORS ?

Blague.xyz

La plus grande API de Blagues FR/The biggest FR jokes API

apiKeyHTTPSCORS

Blitapp

Schedule screenshots of web pages and sync them to your cloud

apiKeyHTTPSCORS ?

Blynk-Cloud

Control IoT Devices from Blynk IoT Cloud

apiKeyNo HTTPSCORS ?

Bored

Find random activities to fight boredom

No authHTTPSCORS ?

BountyCheck

Claimability verdicts for GitHub bounty issues; free stats and sample, checks paid per call via x402

No authHTTPSCORS

Brainshop.ai

Make A Free A.I Brain

apiKeyHTTPSCORS

BrewPage

Free hosting for HTML, JSON, key-value, files, multi-file sites with short URLs and TTL retention

No authHTTPSNo CORS

Browshot

Easily make screenshots of web pages in any screen size, as any device

apiKeyHTTPSCORS

CDNJS

Library info on CDNJS

No authHTTPSCORS ?

Changelogs.md

Structured changelog metadata from open source projects

No authHTTPSCORS ?

ChartBytes

Chart image API: turn a URL into a PNG or SVG chart (bar, line, area, scatter, pie, donut, stacked)

No authHTTPSCORS

Ciprand

Secure random string generator

No authHTTPSNo CORS

Clair

Live public web data as JSON: Google Search, Maps, News, Amazon, jobs, reviews & more, one API key

apiKeyHTTPSNo CORS

claudecookie

Convert cookie formats, check Claude sessions and generate Claude Code credentials

No authHTTPSCORS

Cloudflare

Manage DNS, CDN, Workers and other services; documented with an official OpenAPI 3.0 spec

apiKeyHTTPSNo CORS

Cloudflare Trace

Get IP Address, Timestamp, User Agent, Country Code, IATA, HTTP Version, TLS/SSL Version & More

No authHTTPSCORS

Codeberg

Git hosting, repos and issues via Gitea API

No authHTTPSCORS

Codex

Online Compiler for Various Languages

No authHTTPSCORS ?

Contentful Images

Used to retrieve and apply transformations to images

apiKeyHTTPSCORS

CORS Proxy

Get around the dreaded CORS error by using this proxy as a middle man

No authHTTPSCORS

CountAPI

Free and simple counting service. You can use it to track page hits and specific events

No authHTTPSCORS

crates.io

Rust crate versions, downloads and dependency metadata

No authHTTPSCORS

Crawl Readiness

Check if AI crawlers (ChatGPT, Claude, Perplexity, 30+ others) can access any website

apiKeyHTTPSCORS

CurlShot

Screenshots, PDFs and scrolling videos of any URL, HTML or Markdown; free tier

apiKeyHTTPSCORS

Databricks

Service to manage your databricks account,clusters, notebooks, jobs and workspaces

apiKeyHTTPSCORS

Diagrams.so

Generate editable draw.io architecture diagrams from text or infrastructure code

apiKeyHTTPSNo CORS

DigitalOcean Status

Status of all DigitalOcean services

No authHTTPSCORS ?

DigMyName

Domain availability and registrar pricing across 52 TLDs

No authHTTPSCORS

Docker Hub

Interact with Docker Hub

apiKeyHTTPSCORS

Domain Info by LifeStep

DNS records, SPF/DMARC detection and TLS certificate expiry

No authHTTPSCORS

DomainDb Info

Domain name search to find all domains containing particular words/phrases/etc

No authHTTPSCORS ?

dotsweep

Domain availability across 1200+ TLDs with registration and renewal prices

No authHTTPSCORS

DownStatus

Real-time status for GitHub, AWS, Discord and 90+ services

No authHTTPSCORS

EndOfLife.date

Software end-of-life dates and support lifecycles

No authHTTPSCORS

ExtendsClass JSON Storage

A simple JSON store API

No authHTTPSCORS

Fair Draw

Verifiable random draws bound to the drand public randomness beacon

No authHTTPSCORS

Framejet

Website screenshot API with cookie banners and chat widgets removed; free tier

apiKeyHTTPSNo CORS

GcrawlAI

Web scraping, SERP API, screenshots, URL to Markdown and prebuilt extractors

apiKeyHTTPSCORS

GeekFlare

Provide numerous capabilities for important testing and monitoring methods for websites

apiKeyHTTPSCORS ?

Genderize.io

Estimates a gender from a first name

No authHTTPSCORS

GeraCode

Barcode (EAN-13, UPC-A, Code 128, ITF-14) and QR code images, PNG or SVG. Docs in Portuguese

No authHTTPSCORS

GETPing

Trigger an email notification with a simple GET request

apiKeyHTTPSCORS ?

Ghost

Get Published content into your Website, App or other embedded media

apiKeyHTTPSCORS

GitHub

Make use of GitHub repositories, code and user info programmatically

OAuthHTTPSCORS

GithubTrends

GitHub Trending repositories with star history and open-source alternatives to paid tools

No authHTTPSCORS

Gitlab

Automate GitLab interaction programmatically

OAuthHTTPSCORS ?

Gitter

Chat for Developers

OAuthHTTPSCORS ?

Glitterly

Image generation API

apiKeyHTTPSCORS

Go Module Proxy

Go module versions and source metadata

No authHTTPSCORS ?

Google Docs

API to read, write, and format Google Docs documents

OAuthHTTPSCORS ?

Google Firebase

Google's mobile application development platform that helps build, improve, and grow app

apiKeyHTTPSCORS

Google Fonts

Metadata for all families served by Google Fonts

apiKeyHTTPSCORS ?

Google Keep

API to read, write, and format Google Keep notes

OAuthHTTPSCORS ?

Google PageSpeed Insights

Website performance and Lighthouse audit scores

apiKeyHTTPSCORS

Google Sheets

API to read, write, and format Google Sheets data

OAuthHTTPSCORS ?

Google Slides

API to read, write, and format Google Slides presentations

OAuthHTTPSCORS ?

Gorest

Online REST API for Testing and Prototyping

OAuthHTTPSCORS ?

Hasura

GraphQL and REST API Engine with built in Authorization

apiKeyHTTPSCORS

Heroku

REST API to programmatically create apps, provision add-ons and perform other task on Heroku

OAuthHTTPSCORS

Hex

Elixir and Erlang package versions and docs

No authHTTPSCORS ?

Hipsum

Hipster-themed lorem ipsum generator for placeholder text

No authHTTPSCORS ?

Homebrew Formulae

Package and cask data for the Homebrew package manager

No authHTTPSCORS ?

host-t.com

Basic DNS query via HTTP GET request

No authHTTPSNo CORS

Host.io

Domains Data API for Developers

apiKeyHTTPSCORS

HostDealRadar

Source-backed hosting price and provider record lookup

No authHTTPSCORS

HTTP2.Pro

Test endpoints for client and server HTTP/2 protocol support

No authHTTPSCORS ?

Httpbin

A Simple HTTP Request & Response Service

No authHTTPSCORS

Hunter

API for domain search, professional email finder, author finder and email verifier

apiKeyHTTPSCORS ?

IBM Text to Speech

Convert text to speech

apiKeyHTTPSCORS

Icanhazepoch

Get Epoch time

No authHTTPSCORS

Icanhazip

IP Address API

No authHTTPSCORS

IFTTT

IFTTT Connect API

No authHTTPSCORS ?

Image-Charts

Generate charts, QR codes and graph images

No authHTTPSCORS

import.io

Retrieve structured data from a website or RSS feed

apiKeyHTTPSCORS ?

Index Agentica

Agent-first directory of skills, MCP servers, tools, protocols and APIs as JSON, markdown, llms.txt

No authHTTPSCORS

ip-fast.com

IP address, country and city

No authHTTPSCORS

IP2WHOIS Information Lookup

WHOIS domain name lookup

apiKeyHTTPSCORS ?

ipfind.io

Geographic location of an IP address or any domain name along with some other useful information

apiKeyHTTPSCORS

IPify

A simple IP Address API

No authHTTPSCORS ?

IPinfo

Another simple IP Address API

No authHTTPSCORS ?

Ironfang Render

Screenshots, PDFs, dynamic images, QR codes and video from URLs or HTML

apiKeyHTTPSNo CORS

Is This Site Down?

Check if any website is down, from two continents; live status, uptime history and TLS expiry

No authHTTPSCORS

isitdownstatus

Check if websites and online services are currently down

No authHTTPSCORS ?

jsDelivr

Package info and download stats on jsDelivr CDN

No authHTTPSCORS

JSON 2 JSONP

Convert JSON to JSONP (on-the-fly) for easy cross-domain data requests using client-side JavaScript

No authHTTPSCORS ?

JSONbin.io

Free JSON storage service. Ideal for small scale Web apps, Websites and Mobile apps

apiKeyHTTPSCORS

JSONPlaceholder

Fake REST API for testing and prototyping

No authHTTPSCORS

jstash

Save JSON with one request and get a URL; private JSON for each signed-in user of your app

apiKeyHTTPSNo CORS

Keyvalue

Simple key-value storage REST API for quick prototyping

No authHTTPSCORS ?

Kroki

Creates diagrams from textual descriptions

No authHTTPSCORS

Labelixa

Render, validate and generate Zebra ZPL label barcodes as PNG/PDF

apiKeyHTTPSCORS

License-API

Unofficial REST API for choosealicense.com

No authHTTPSNo CORS

Litport Free Proxy

Live-tested HTTP, SOCKS4, and SOCKS5 proxies with latency, uptime, and geolocation

No authHTTPSNo CORS

LiveOrDown

Live up/down status of 240+ online services, checked every minute from 3 regions

No authHTTPSCORS

Logs.to

Generate logs

apiKeyHTTPSCORS ?

Lua Decompiler

Online Lua 5.1 Decompiler

No authHTTPSCORS

MAC address vendor lookup

Retrieve vendor details and other information regarding a given MAC address or an OUI

apiKeyHTTPSCORS

macadress

MAC address and OUI vendor lookup synced from IEEE, with randomized-MAC detection

No authHTTPSCORS

Micro DB

Simple database service

apiKeyHTTPSCORS ?

Micro-SaaS AI Suite

8 serverless AI APIs for sentiment analysis, copy generation, email verification, & OCR

apiKeyHTTPSCORS ?

MicroENV

Fake Rest API for developers

No authHTTPSCORS ?

Mocky

Mock user defined test JSON for REST API endpoints

No authHTTPSCORS

msgboard

Public message board for agent-to-agent messaging, no account or key

No authHTTPSNo CORS

MY IP

Get IP address information

No authHTTPSCORS ?

MyIPRightNow

Public IP address with network, location, and connection details

No authHTTPSCORS

NameGender

Gender from a first name, full name, email or username, with probability

apiKeyHTTPSCORS

Nationalize.io

Estimate the nationality of a first name

No authHTTPSCORS

Nerdulator

Everything derivable from one value: numbers, dates, colours, UUIDs, cron expressions

No authHTTPSCORS

Netlify

Netlify is a hosting service for the programmable web

OAuthHTTPSCORS ?

NetworkCalc

Network calculators, including subnets, DNS, binary, and security tools

No authHTTPSCORS

npm Registry

Query information about your favorite Node.js libraries programatically

No authHTTPSCORS ?

NuGet

.NET package versions, metadata and search

No authHTTPSCORS

OneSignal

Self-serve customer engagement solution for Push Notifications, Email, SMS & In-App

apiKeyHTTPSCORS ?

Open Page Rank

API for calculating and comparing metrics of different websites using Page Rank algorithm

apiKeyHTTPSCORS ?

Open VSX

Search and access VS Code extensions from the Open VSX registry

No authHTTPSCORS

OpenAPIHub

The All-in-one API Platform

X-Mashape-KeyHTTPSCORS ?

OpenGraphr

Really simple API to retrieve Open Graph data from an URL

apiKeyHTTPSCORS ?

OpenQR

Generate QR codes and manage dynamic (editable) QR codes with scan analytics

apiKeyHTTPSCORS

Orca Scan

Generate barcode images (QR, Code 128, EAN, Data Matrix and more) in SVG, PNG, JPG or PDF

No authHTTPSCORS

OutageDeck

Live status and incidents for 170+ cloud and SaaS providers from official feeds

No authHTTPSCORS

oyyi

API for Fake Data, image/video conversion, optimization, pdf optimization and thumbnail generation

No authHTTPSCORS

Packagist

PHP Composer package versions and dist metadata

No authHTTPSNo CORS

PageCDN

Public API for javascript, css and font libraries on PageCDN

apiKeyHTTPSCORS

Peak

Cloudflare Turnstile and 5-second challenge solving, pay per successful solve, 1,000 free solves

apiKeyHTTPSCORS

Postman

Tool for testing APIs

apiKeyHTTPSCORS ?

ProxyCrawl

Scraping and crawling anticaptcha service

apiKeyHTTPSCORS ?

ProxyForge

Free auto-updating list of live-tested proxies (HTTP/HTTPS/SOCKS4/SOCKS5), refreshed every 6 h

No authHTTPSCORS

ProxyKingdom

Rotating Proxy API that produces a working proxy on every request

apiKeyHTTPSCORS

Pusher Beams

Push notifications for Android & iOS

apiKeyHTTPSCORS ?

QR & Barcode

QR codes and barcodes (Code 128, EAN-13, Data Matrix, PDF417 + more). SVG or PNG output

No authHTTPSCORS

QR code

Create an easy to read QR code and URL shortener

No authHTTPSCORS

QR code

Generate and decode / read QR code graphics

No authHTTPSCORS ?

QR Code by LifeStep

Generate QR codes as PNG or SVG with size, border and color options

No authHTTPSCORS

QR Code Crafter

Generate static QR codes in SVG, PNG, JPG, WebP, PDF, or EPS

No authHTTPSCORS

QR Codes

Generate QR codes via a single GET request, with logo embedding and custom colors

apiKeyHTTPSNo CORS

Qrcode Monkey

Integrate custom and unique looking QR codes into your system or workflow

No authHTTPSCORS ?

QRX

Artistic, branded QR codes from a text prompt and a link, checked to scan

apiKeyHTTPSNo CORS

QuickChart

Generate chart and graph images

No authHTTPSCORS

Quotable

Random quotes with authors and tags

No authHTTPSCORS

Random Stuff

Can be used to get AI Response, jokes, memes, and much more at lightning-fast speed

apiKeyHTTPSCORS

RealUptime

Manage uptime monitors, heartbeat checks, incidents and status pages with an API key

apiKeyHTTPSNo CORS

Rejax

Reverse AJAX service to notify clients

apiKeyHTTPSNo CORS

ReplyNodes

Convert a public web page into clean Markdown

No authHTTPSNo CORS

RSS feed to JSON

Returns RSS feed in JSON format using feed URL

No authHTTPSCORS

RubyGems

Ruby gem metadata, versions, dependencies and search

No authHTTPSCORS

SavePage.io

A free, RESTful API used to screenshot any desktop, or mobile website

apiKeyHTTPSCORS

ScrapeNinja

Scraping API with Chrome fingerprint and residential proxies

apiKeyHTTPSCORS ?

ScraperApi

Easily build scalable web scrapers

apiKeyHTTPSCORS ?

scraperBox

Undetectable web scraping API

apiKeyHTTPSCORS

scrapestack

Real-time, Scalable Proxy & Web Scraping REST API

apiKeyHTTPSCORS ?

ScrapingAnt

Headless Chrome scraping with a simple API

apiKeyHTTPSCORS ?

ScrapingBot

Web scraping, AI extraction, and public TikTok, Instagram, Google and Amazon data as JSON

apiKeyHTTPSNo CORS

ScrapingDog

Proxy API for Web scraping

apiKeyHTTPSCORS ?

Scrappa

Google Search, Maps, Jobs, YouTube and review site results as structured JSON

apiKeyHTTPSCORS

Scrax

Web scraping API that only bills for successful scrapes

apiKeyHTTPSCORS ?

Screenshot

Take programmatic screenshots of web pages from any website

apiKeyHTTPSCORS

Screenshot Happy

Website screenshot API (PNG/JPEG/PDF) with full-page capture and visual-diff monitors

apiKeyHTTPSNo CORS

ScreenshotAPI.net

Create pixel-perfect website screenshots

apiKeyHTTPSCORS

SegmentLite

Lightweight event routing and webhook fan-out API alternative to Segment

apiKeyHTTPSCORS

Serialif Color

Color conversion, complementary, grayscale and contrasted text

No authHTTPSNo CORS

Serply

Google, Bing, News, Scholar and Maps search results and page scraping as JSON

apiKeyHTTPSCORS

serpstack

Real-Time & Accurate Google Search Results API

apiKeyHTTPSCORS

Sheetsu

Easy google sheets integration

apiKeyHTTPSCORS ?

Shotanvil

Screenshot, PDF and HTML rendering API with a free tier, API key or x402 auth

apiKeyHTTPSNo CORS

SHOUTCLOUD

ALL-CAPS AS A SERVICE

No authNo HTTPSCORS ?

SiteIntel

Extract metadata, tech stack, emails, and screenshots from any URL

apiKeyHTTPSCORS ?

SnapRender

Website screenshots as PNG, JPEG, WebP or PDF, and page content as markdown, with a free tier

apiKeyHTTPSCORS

SnoopScan

Scrape, crawl, map and search the web as clean markdown or JSON, with a free monthly tier

apiKeyHTTPSCORS ?

SolidPing

Create and run uptime checks, read results and incidents, manage status pages, with a free tier

apiKeyHTTPSCORS ?

Sonar

Project Sonar DNS Enumeration API

No authHTTPSCORS

SonarQube

SonarQube REST APIs to detect bugs, code smells & security vulnerabilities

OAuthHTTPSCORS ?

StackExchange

Q&A forum for developers

OAuthHTTPSCORS ?

Statically

A free CDN for developers

No authHTTPSCORS

Supportivekoala

Autogenerate images with template

apiKeyHTTPSCORS

Suprsonic

Unified agent API: search, scrape, enrich, image gen, TTS, STT, messaging. One key, 20+ capabilities

apiKeyHTTPSCORS

Talordata

SERP data from major search engines with a free trial

apiKeyHTTPSCORS ?

TheQRCode

Generate QR codes for URLs, WiFi, contact cards, email and text, with custom colors and styling

No authHTTPSCORS

Thunder Client

API testing tool

No authHTTPSCORS

Thunderbit

Extract web pages as Markdown or structured data for AI apps

apiKeyHTTPSCORS ?

TidyTools

Web page to clean Markdown and AI crawler robots.txt checks, free without a key (rate limited)

No authHTTPSCORS

Timezone WorldTime

Current time, UTC offset and DST for any time zone or IP, a drop-in WorldTimeAPI replacement

No authHTTPSCORS

TinyMind Agent Tools

Free APIs by an AI agent on a VPS: actor lookup, word-of-the-day, poems, jokes, ping

No authHTTPSCORS

ToolForte

Deterministic utilities: IBAN/VAT validation, cron parsing, regex, diffs, Dutch holidays, test data

apiKeyHTTPSCORS ?

Tyk

Api and service management platform

apiKeyHTTPSCORS

URLpipe

Turn a URL into Markdown, screenshots, metadata or Lighthouse audits, rendered in real Chrome

apiKeyHTTPSNo CORS

Userstack

Secure User-Agent String Lookup JSON API

OAuthHTTPSCORS ?

Utilorax

203 JSON endpoints: hashing, encoding, unit conversion, text, dates and file conversion

apiKeyHTTPSCORS

Vornamencheck

Gender probability for a first name, optionally per country; documentation in German

No authHTTPSCORS

W3C Validator

Validate HTML and check markup errors

No authHTTPSCORS ?

Wandbox

Code compiler supporting 35+ languages mentioned at wandbox.org

No authHTTPSCORS ?

Web Metadata & Contact Extractor

Extract SEO metadata, contact emails, social links, and tech stack (<200ms)

apiKeyHTTPSCORS

Webclaw

Web content extraction for LLMs with scrape, crawl, search, and summarize

apiKeyHTTPSCORS

WebScraping.AI

Web Scraping API with built-in proxies and JS rendering

apiKeyHTTPSCORS

XLSX Inspector

Inspect XLSX/XLSM structure: sheets, formulas, macros and external links

No authHTTPSCORS

ZenRows

Web Scraping API that bypasses anti-bot solutions while offering JS rendering, and rotating proxies

apiKeyHTTPSCORS ?

Development API FAQ

How many free Development APIs are there?

There are 215 free public Development APIs in the directory. 213 support HTTPS, 113 are confirmed to allow CORS and 105 need no API key.

Which Development APIs work without an API key?

105 Development APIs need no authentication, including 24 Pull Requests, Agent Nexus, AgentPay Domain Lookup and Agify.io. You can call them straight away without signing up.

Which Development APIs can I call from the browser?

APIs with CORS enabled can be called directly from front-end JavaScript. In Development, that includes 24 Pull Requests, Agent Nexus, AgentPay Domain Lookup and Agify.io.

Development API FAQ

How many free Development APIs are there?

There are 215 free public Development APIs in the directory. 213 support HTTPS, 113 are confirmed to allow CORS and 105 need no API key.

Which Development APIs work without an API key?

105 Development APIs need no authentication, including 24 Pull Requests, Agent Nexus, AgentPay Domain Lookup and Agify.io. You can call them straight away without signing up.

Which Development APIs can I call from the browser?

APIs with CORS enabled can be called directly from front-end JavaScript. In Development, that includes 24 Pull Requests, Agent Nexus, AgentPay Domain Lookup and Agify.io.