Abacus
Development
Free and simple counting service. You can use it to track page hits and specific events
No keyCORSHTTPS
Free developer utilities & mock data
Fake REST payloads, dummy user databases, placeholder images, and status monitors. The zero-cost tooling you need while scaffolding a full-stack MVP.
144 APIs match
API Status Check
Development
Real-time status monitoring for 270+ APIs and services
No keyCORSHTTPS
APIzone
Development
Independent uptime & status monitoring for 200+ popular APIs
No keyCORSHTTPS
Aquanode
Development
Live GPU rental prices and availability across nine cloud providers
No keyCORSHTTPS
ArulJohn.com
Development
A simple IP Address API in JSON
No keyCORSHTTPS
CDNJS
Development
Library info on CDNJS
No keyCORSHTTPS
Corsfix
Development
CORS Proxy by Corsfix lets you instantly fetch any resource on the web and bypass CORS errors
No keyCORSHTTPS
DigitalOcean Status
Development
Status of all DigitalOcean services
No keyCORSHTTPS
DigitalOcean Status
Development
Status of all DigitalOcean services
No keyCORSHTTPS
DummyJSON
Test Data
Fake REST API with products, users, posts, comments, todos and more
No keyCORSHTTPS
English Random Words
Test Data
Generate English Random Words with Pronunciation
No keyCORSHTTPS
Fair Draw
Development
Verifiable random draws bound to the drand public randomness beacon
No keyCORSHTTPS
FakeNamely
Test Data
Fictional identities, addresses and names for tests
No keyCORSHTTPS
Genderize.io
Development
A simple API that predicts the gender of a person based on a first name
No keyCORSHTTPS
GitHub Contribution Chart Generator
Open Source Projects
Create an image of your GitHub contributions
No keyCORSHTTPS
Httpbin
Development
A Simple HTTP Request & Response Service
No keyCORSHTTPS
Icanhazepoch
Development
Get Epoch time
No keyCORSHTTPS
Icanhazip
Development
IP Address API
No keyCORSHTTPS
IDPhotoSnap Passport Photo Specs
Documents & Productivity
Passport, visa, and ID photo specifications for 100+ countries with government source citations
No keyCORSHTTPS
Image-Charts
Development
Generate charts, QR codes and graph images
No keyCORSHTTPS
IPGEO
Development
Unlimited free IP Address API with useful information
No keyCORSHTTPS
Keyvalue
Development
Simple key-value storage REST API for quick prototyping
No keyCORSHTTPS
Nationalize.io
Development
Estimate the nationality of a first name
No keyCORSHTTPS
NetworkCalc
Development
Network calculators, including subnets, DNS, binary, and security tools
No keyCORSHTTPS
Not Human Search
Development
AI-ready website discovery and scoring
No keyCORSHTTPS
OOPSpam
Development
Multiple spam filtering service
No keyCORSHTTPS
Orca Scan
Development
Generate barcode images (QR, Code 128, EAN, Data Matrix and more) in SVG, PNG, JPG or PDF
No keyCORSHTTPS
OutageDeck
Development
Live status and incidents for 170+ cloud and SaaS providers from official feeds
No keyCORSHTTPS
Packagist
Development
PHP Composer package versions and dist metadata
No keyCORSHTTPS
Prismix
Development
Real-time uptime for 77 AI APIs (OpenAI, Anthropic, Cursor, Gemini) — free JSON endpoint, no auth required
No keyCORSHTTPS
RoboHash
Test Data
Generate random robot/alien avatars
No keyCORSHTTPS
RubyGems
Development
Ruby gem metadata, versions, dependencies and search
No keyCORSHTTPS
Sampuli
Test Data
Format-true synthetic test data for 90 countries: IDs, IBANs, cards, addresses
No keyCORSHTTPS
Shields
Open Source Projects
Concise, consistent, and legible badges in SVG and raster format
No keyCORSHTTPS
Statically
Development
A free CDN for developers
No keyCORSHTTPS
v.recipes DNS Accelerator
Development
The Accelerator variant can be used to test & accelerate any DoH providers
No keyCORSHTTPS
v.recipes Get IP
Development
A simple API to get information such as IP, ISP name, Location, etc. based on user request
No keyCORSHTTPS
Waldrand Avatar
Test Data
Deterministic SVG/PNG/WebP avatars from any string, four styles
No keyCORSHTTPS
JSONPlaceholder
Development
Free fake and reliable API for testing and prototyping. Serving ~3 billion requests each month.
No keyCORSHTTPS
RandomUser
Test Data
API for generating random user data like names, emails, addresses, and more. Provides JSON, XML, CSV, or YAML objects.
No keyCORSHTTPS
Yes No
Test Data
This API generates a random 'Yes' or 'No' response.
No keyCORSHTTPS
JMESPath Free API
Development
The JMESPath free API provides a serverless endpoint for running JSON transformations using the JMESPath query language. It enables users to quickly filter, reshape, and extract data from JSON without the need for deploying any infrastructure. This API is ideal for prototyping and low-volume automation tasks.
No keyCORSHTTPS
What The Commit
Test Data
Random commit message generator
No keyCORS
1pt
URL Shorteners
A simple URL shortener
No keyHTTPS
24 Pull Requests
Development
Project to promote open source collaboration during December
No keyHTTPS
AddressMock
Test Data
Random US, Hong Kong and Cape Verde addresses with matched city, state and ZIP
No keyHTTPS
AgentDeals
Development
Search and compare developer free tiers, startup credits, and pricing changes
No keyHTTPS
ApicAgent
Development
Extract device details from user-agent string
No keyHTTPS
APIs.guru
Development
Wikipedia for Web APIs, OpenAPI/Swagger specs for public APIs
No keyHTTPS
Beeceptor
Development
Build a mock Rest API endpoint in seconds
No keyHTTPS
Beeceptor's CRUD APIs
Test Data
Free stateful CRUD APIs
No keyHTTPS
Bored
Development
Find random activities to fight boredom
No keyHTTPS
BrewPage
Development
Free hosting for HTML, JSON, key-value, files, multi-file sites with short URLs and TTL retention
No keyHTTPS
Changelogs.md
Development
Structured changelog metadata from open source projects
No keyHTTPS
Ciprand
Development
Secure random string generator
No keyHTTPS
CleanURI
URL Shorteners
URL shortener service
No keyHTTPS
Cloudflare Trace
Development
Get IP Address, Timestamp, User Agent, Country Code, IATA, HTTP Version, TLS/SSL Version & More
No keyHTTPS
CORS Proxy
Development
Get around the dreaded CORS error by using this proxy as a middle man
No keyHTTPS
Dicebear Avatars
Test Data
Generate random pixel-art avatars
No keyHTTPS
DigMyName
Development
Domain availability and registrar pricing across 52 TLDs
No keyHTTPS
DomainDb Info
Development
Domain name search to find all domains containing particular words/phrases/etc
No keyHTTPS
dotsweep
Development
Domain availability across 1200+ TLDs with registration and renewal prices
No keyHTTPS
Drivet URL Shortener
URL Shorteners
Shorten a long URL easily and fast
No keyHTTPS
Drupal.org
Open Source Projects
Drupal.org
No keyHTTPS
ExtendsClass JSON Storage
Development
A simple JSON store API
No keyHTTPS
File.io
Cloud Storage & File Sharing
Super simple file sharing, convenient, anonymous and secure
No keyHTTPS
FileUp
Cloud Storage & File Sharing
Temporary file hosting with upload API, expiration times, and view limits
No keyHTTPS
flaky
Test Data
Fake REST API with chaos controls: force any status code, add latency, or a failure rate
No keyHTTPS
FontDownloader
Development
A hassle free API for managing web fonts provided by Google Fonts
No keyHTTPS
Git.io
URL Shorteners
Git.io URL shortener
No keyHTTPS
GitHub ReadMe Stats
Open Source Projects
Add dynamically generated statistics to your GitHub profile ReadMe
No keyHTTPS
GoTiny
URL Shorteners
A lightweight URL shortener, focused on ease-of-use for the developer and end-user
No keyHTTPS
Hex
Development
Elixir and Erlang package versions and docs
No keyHTTPS
Hipsum
Development
Hipster-themed lorem ipsum generator for placeholder text
No keyHTTPS
host-t.com
Development
Basic DNS query via HTTP GET request
No keyHTTPS
HTTP2.Pro
Development
Test endpoints for client and server HTTP/2 protocol support
No keyHTTPS
IFTTT
Development
IFTTT Connect API
No keyHTTPS
Image-Charts
Development
Generate charts, QR codes and graph images
No keyHTTPS
ip-fast.com
Development
IP address, country and city
No keyHTTPS
ipapi.is
Development
Public IP Address API with company, ASN and hosting detection support
No keyHTTPS
IPLocate.io
Development
Fast, free, accurate IP geolocation and threat data (proxy/VPN/hosting detection) API
No keyHTTPS
Is This Site Down?
Development
Check if any website is down, from two continents; live status, uptime history and TLS expiry
No keyHTTPS
ItsThisForThat
Test Data
Generate Random startup ideas
No keyHTTPS
jsDelivr
Development
Package info and download stats on jsDelivr CDN
No keyHTTPS
JSON 2 JSONP
Development
Convert JSON to JSONP (on-the-fly) for easy cross-domain data requests using client-side JavaScript
No keyHTTPS
Kroki
Development
Creates diagrams from textual descriptions
No keyHTTPS
Let's Validate
Development
Uncovers the technologies used on websites and URL to thumbnail
No keyHTTPS
License-API
Development
Unofficial REST API for choosealicense.com
No keyHTTPS
Mega.nz
Cloud Storage & File Sharing
File Sharing And Storage
No keyHTTPS
Metabase
Open Source Projects
An open source Business Intelligence server to share data and analytics inside your company
No keyHTTPS
Mgnet.me
URL Shorteners
Torrent URL shorten API
No keyHTTPS
Mockerito
Test Data
Free mock REST APIs across different business domains
No keyHTTPS
msgboard
Development
Public message board for agent-to-agent messaging, no account or key
No keyHTTPS
MY IP
Development
Get IP address information
No keyHTTPS
MyIPRightNow
Development
Public IP address with network, location, and connection details
No keyHTTPS
Nerdulator
Development
Everything derivable from one value: numbers, dates, colours, UUIDs, cron expressions
No keyHTTPS
npm Registry
Development
Query information about your favorite Node.js libraries programatically
No keyHTTPS
NuGet
Development
.NET package versions, metadata and search
No keyHTTPS
NumValidate
Data Validation
Open Source phone number validation
No keyHTTPS
OpenUnfurl
Development
No-signup link unfurl API returning Open Graph, Twitter Card and oEmbed metadata
No keyHTTPS
oyyi
Development
API for Fake Data, image/video conversion, optimization, pdf optimization and thumbnail generation
No keyHTTPS
Pantry
Cloud Storage & File Sharing
Free JSON storage for small projects
No keyHTTPS
PHPhub
Development
Validate PHP code
No keyHTTPS
Postman Echo
Data Validation
Test api server to receive and return value from HTTP method
No keyHTTPS
ProxyForge
Development
Free auto-updating list of live-tested proxies (HTTP/HTTPS/SOCKS4/SOCKS5), refreshed every 6 h
No keyHTTPS
Public APIs
Development
A collective list of free JSON APIs for use in web development
No keyHTTPS
Pythonium
Development
Validate Python code
No keyHTTPS
QR code
Development
Create an easy to read QR code and URL shortener
No keyHTTPS
QR code
Development
Generate and decode / read QR code graphics
No keyHTTPS
QR Code Crafter
Development
Generate static QR code assets in SVG, PNG, JPG, WebP, PDF, or EPS
No keyHTTPS
Qrcode Monkey
Development
Integrate custom and unique looking QR codes into your system or workflow
No keyHTTPS
QuickChart
Development
Generate chart and graph images
No keyHTTPS
Shadify
Development
Service for generating data and executing logic to create various games and puzzles
No keyHTTPS
Short Id
Test Data
Generate unique short Ids
No keyHTTPS
Shrtcode
URL Shorteners
URl Shortener with multiple Domains
No keyHTTPS
Sonar
Development
Project Sonar DNS Enumeration API
No keyHTTPS
SQLable
Development
Validate SQL query
No keyHTTPS
The Null Pointer
Cloud Storage & File Sharing
No-bullshit file hosting and URL shortening service
No keyHTTPS
The Odin Project
Open Source Projects
theodinproject.com
No keyHTTPS
This Person Does not Exist
Test Data
Generates real-life faces of people who do not exist
No keyHTTPS
Thunder Client
Development
API testing tool
No keyHTTPS
TinyMind Agent Tools
Development
Free APIs by an AI agent on a VPS: actor lookup, word-of-the-day, poems, jokes, ping
No keyHTTPS
TotalShiftLeft Sandbox
Test Data
Free multi-protocol sandbox: REST, GraphQL & SOAP with OAuth2/JWT auth and OpenAPI 3.0 spec
No keyHTTPS
UI Names
Test Data
Generate random fake names
No keyHTTPS
Vector Express v2.0
Documents & Productivity
Free vector file converting API
No keyHTTPS
WakaTime
Documents & Productivity
Automated time tracking leaderboards for programmers
No keyHTTPS
XMLable
Development
Validate XML
No keyHTTPS
Yamline
Development
Validate Kubernetes manifests
No keyHTTPS
Datamuse
Open Source Projects
The Datamuse API is a powerful word-finding query engine designed for developers. It enables applications to find words that match various constraints regarding meaning, spelling, sound, and context, making it versatile for many linguistic applications.
No keyHTTPS
Evil Insult Generator
Open Source Projects
This API generates humorous and malicious insults based on specified parameters. Users can customize the insult's language and response type, receiving responses in plain text, XML, or JSON formats.
No keyHTTPS
IPify
Development
A simple public IP address API, easy to integrate into any application in seconds.
No keyHTTPS
IPinfo
Development
The IPinfo Developer API provides access to comprehensive IP address data, including geolocation, ASN, company information, and privacy detection features. Developers can integrate this data into their applications to customize user experiences and enhance data-driven decisions.
No keyHTTPS
JSONing
Test Data
This API allows users to create a customizable mock API for testing and prototyping. Users can define resources and rules to specify how the API handles requests and responses. It is free and open-source, enabling easy setup for local installations.
No keyHTTPS
Mockae
Test Data
Mockae API allows you to create mock REST APIs with Lua code execution, enabling customization of headers, bodies, and HTTP status codes. It's ideal for testing and prototyping, providing a flexible way to generate API responses quickly and easily.
No keyHTTPS
PurgoMalum
Data Validation
PurgoMalum is a free RESTful web service that filters and removes profanity and unwanted text from input. It supports customization options and can return the results in plain text, XML, or JSON formats.
No keyHTTPS
restful-api
Test Data
This API is designed to handle your HTTP requests 24/7 for free, supporting various methods like GET, POST, PUT, DELETE, and PATCH. It is ideal for demo projects, testing, learning, or educational purposes, providing a reliable backend to store and retrieve data.
No keyHTTPS
Softwium
Test Data
This free public API allows developers to easily obtain fake JSON data for testing and development. There is no need for registration, tokens, or authentication, simplifying the process of retrieving dummy data quickly.
No keyHTTPS
UUID Generator
Test Data
The UUID Generator API allows you to generate unique UUIDs and GUIDs easily via HTTP requests. It supports multiple versions, including version 1, 3, 4, and 5, and can produce them in bulk formats for efficient testing and development purposes.
No keyHTTPS
Bacon Ipsum
Test Data
The Bacon Ipsum JSON API is a REST interface for generating meaty lorem ipsum text that can be utilized by any application. Users can specify parameters such as type of text, number of paragraphs, and format to get tailored responses.
No keyHTTPS
ReqRes
Development
Reqres provides a hosted RESTful API that responds to your AJAX requests with simulated data. It supports various HTTP methods like GET, POST, PUT, and DELETE, allowing developers to easily test their applications with real HTTP responses. This is a great tool for front-end developers looking to prototype interfaces or test functionalities without setting up a backend service.
No keyHTTPS
Countly
Open Source Projects
Countly web analytics
No key
Lorem API
Test Data
The Ultimate Lorem Ipsum Generator
No key
SHOUTCLOUD
Development
ALL-CAPS AS A SERVICE
No key
Serialif Color
Development
Get requested color, complementary color, grayscale, and corresponding text color in different formats.
No keyHTTPS
Common questions
What counts as "free for developers" here?
Tooling you use while building rather than data you build against: mock servers, test-data generators, OpenAPI directories, status monitors, converters and utilities. All 144 need no API key and responded at our last check.
Are these free for commercial projects too?
Usually, but the API being keyless is not the same as the licence permitting commercial use. Each listing links to the provider’s own terms, and those are the authority on what you may do with it.
How often is this list updated?
The catalogue is re-checked on a schedule and this page is generated from the latest results, so entries move in and out as their status changes. 144 APIs match right now.