Abacus
Development
Free and simple counting service. You can use it to track page hits and specific events
No keyCORSHTTPS
Free Development APIs
Tooling for developers: source control, hosting, utilities and automation.
325 listed · 121 need no key · 93 work in the browser
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
ChartBytes
Development
Chart image API: turn a URL into a PNG or SVG chart (bar, line, area, scatter, pie, donut, stacked)
No keyCORSHTTPS
Corsfix
Development
CORS Proxy by Corsfix lets you instantly fetch any resource on the web and bypass CORS errors
No keyCORSHTTPS
CountAPI
Development
Free and simple counting service. You can use it to track page hits and specific events
No keyCORSHTTPS
crates.io
Development
Rust crate versions, downloads and dependency metadata
No keyCORSHTTPS
Fair Draw
Development
Verifiable random draws bound to the drand public randomness beacon
No keyCORSHTTPS
Genderize.io
Development
A simple API that predicts the gender of a person based on a first name
No keyCORSHTTPS
GithubTrends
Development
GitHub Trending repositories with star history and open-source alternatives to paid tools
No keyCORSHTTPS
Homebrew Formulae
Development
Package and cask data for the Homebrew package manager
No keyCORSHTTPS
HostDealRadar
Development
Source-backed hosting price and provider record lookup
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
Image-Charts
Development
Generate charts, QR codes and graph images
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
JSONPlaceholder
Development
Free fake and reliable API for testing and prototyping. Serving ~3 billion requests each month.
No keyCORSHTTPS
Keyvalue
Development
Simple key-value storage REST API for quick prototyping
No keyCORSHTTPS
Lua Decompiler
Development
Online Lua 5.1 Decompiler
No keyCORSHTTPS
Mocky
Development
Mock user defined test JSON for REST API endpoints
No keyCORSHTTPS
All 325 Development APIs
- Abacus
- API Status Check
- APIzone
- Aquanode
- ArulJohn.com
- CDNJS
- ChartBytes
- Corsfix
- CountAPI
- crates.io
- Fair Draw
- Genderize.io
- GithubTrends
- Homebrew Formulae
- HostDealRadar
- Httpbin
- Icanhazepoch
- Icanhazip
- Image-Charts
- JMESPath Free API
- JSONPlaceholder
- Keyvalue
- Lua Decompiler
- Mocky
- Nationalize.io
- NetworkCalc
- OOPSpam
- Open VSX
- Orca Scan
- OutageDeck
- Packagist
- Prismix
- QR & Barcode
- RubyGems
- Statically
- v.recipes DNS Accelerator
- v.recipes Get IP
- XLSX Inspector
- 24 Pull Requests
- AgentDeals
- AgentPay Domain Lookup
- API Grátis
- ApicAgent
- APIs.guru
- Beeceptor
- Bored
- BountyCheck
- BrewPage
- Changelogs.md
- Ciprand
- claudecookie
- Cloudflare Trace
- Codex
- CORS Proxy
- DigitalOcean Status
- DigMyName
- Domain Info by LifeStep
- DomainDb Info
- dotsweep
- DownStatus
- ExtendsClass JSON Storage
- FontDownloader
- GeraCode
- Go Module Proxy
- Hex
- Hipsum
- host-t.com
- HTTP2.Pro
- IFTTT
- Image-Charts
- Index Agentica
- ip-fast.com
- ipapi.is
- IPify
- IPinfo
- IPLocate.io
- Is This Site Down?
- jsDelivr
- JSON 2 JSONP
- Kroki
- Let's Validate
- License-API
- Litport Free Proxy
- MicroENV
- msgboard
- MY IP
- MyIPRightNow
- Nerdulator
- npm Registry
- NuGet
- OpenUnfurl
- oyyi
- PHPhub
- ProxyForge
- Public APIs
- Pythonium
- QR code
- QR code
- QR Code by LifeStep
- QR Code Crafter
- Qrcode Monkey
- QuickChart
- Quotable
- ReqRes
- RSS feed to JSON
- Serialif Color
- Shadify
- SHOUTCLOUD
- Sonar
- SQLable
- TheQRCode
- Thunder Client
- TidyTools
- Timezone WorldTime
- TinyMind Agent Tools
- Vornamencheck
- Wandbox
- XMLable
- Yamline
- Aether Bridge
- Amazonscraperapi
- AmberOne
- API Tool Calls
- Base
- BrowserCat
- Crawl Readiness
- CueAPI
- Detection Runs Dataset
- Doczillla
- Extracto
- Firebase REST API
- Framejet
- Free Sports API
- GitHub
- GitHub
- GitHub REST API
- Gitlab
- Host.io
- HTML to PDF Converter
- IBM Text to Speech
- IBM Text to Speech
- Ilmenite
- import.io
- Kanji Data API
- Keanu Whoa API
- Korean JSON API
- Labelixa
- MAC address vendor lookup
- No-as-a-Service
- ProxyKingdom
- Random Stuff
- ReplyNodes
- SavePage.io
- ScreenshotAPI
- ScreenshotAPI.net
- SegmentLite
- Sodeom Search API
- SpryTools Screenshot
- SpryTools Web Scraping
- Supportivekoala
- ToolForte
- Wordle Answers API
- Yes-as-a-Service
- Zuplo
- 409A Quote Price Index
- Abstract API
- Ancestral Records Access
- ANKUSI Wheel Fitment API
- AnswerLine
- API Snap
- ApiFlash
- APIFreaks
- AU Conveyancing Fee Index
- Azure DevOps
- BetterMeta
- Bitbucket
- Blague.xyz
- Bleach Poems API
- Blitapp
- Blynk-Cloud
- BoneQuest API
- Browshot
- Catchr HTTP API
- Cholecystectomy Price Index
- Claude Resets API
- Cloudflare
- Co Roof Cost Index
- Codex Reset API
- Codex Reset Radar
- Coinpay P2P Data
- Commercial Waste Index
- Contentful Images
- Conveyancing Fee Index
- Databricks
- Diagrams.so
- Dilapidations Cost Index
- Docker Hub
- Dorset Price Index
- Faceplusplus
- Fantasy Role Playing API
- Fedora Messaging API
- FL HVAC Price Index
- Florida Roof Index
- GcrawlAI
- GeekFlare
- GETPing
- Ghost
- GitHub Error API
- GitHub Project Issues
- GitHub Website API
- Gitter
- Gitter
- Glitterly
- Google Docs
- Google Firebase
- Google Fonts
- Google Keep
- Google PageSpeed Insights
- Google Sheets
- Google Slides
- Gorest
- Hasura
- Heroku
- Hunter
- IP Data API
- IP Intelligence API
- IP2WHOIS Information Lookup
- ipfind.io
- IPFinder
- IPKit
- Japanese Public Holidays
- JSONbin.io
- Kiprio HTTP APIs
- Kiprio IP Lookup
- Kiprio OG Image
- Kiprio Screenshot
- latest@ API
- Laundry Price Index
- Logs.to
- LSL Statutory Entitlements
- Micro DB
- MobileAPI
- MyJSON.online
- NameGender
- Netlify
- Nobel Prize API
- NZ Conveyancing Fee Index
- OneSignal
- Open Page Rank
- OpenAPIHub
- OpenGraphr
- OpenQR
- openSenseMap API
- PageCDN
- Peak
- PhantomJsCloud API
- Postman
- Postman
- ProxyCrawl
- Pub Mortgage Lender Index
- Public Time API
- Pusher Beams
- QR Code
- QR Codes
- QuanHau API Docs
- Rates Limits API
- Rejax
- REST API Beispiele
- ScrapeNinja
- ScraperApi
- scraperBox
- scrapestack
- ScrapingAnt
- ScrapingDog
- Scrappa
- Scrax
- Screenshot
- ScreenURL
- SerpApi
- Serply
- serpstack
- Sheetsu
- Short Link API
- Shotanvil
- SiteIntel
- SnapRender
- SnoopScan
- SonarQube
- StackExchange
- Strictly Better API
- Suprsonic
- Talordata
- TalorData
- Tempo EDF API
- The Rosary Api
- Thunderbit
- Tyk
- UK Basement Price Index
- UK Drain Price Index
- UK PPC Management Fee Index
- UK Washroom Price Index
- URL to Markdown
- URLpipe
- Userstack
- Utilorax
- Veabird Beach API
- Vet SEO Provider Index
- Wadifa Info API
- Wahlumfragen Datenbank API
- Web Metadata & Contact Extractor
- Webclaw
- WebCrawlerAPI
- WebScraping.AI
- Wenmar VIN API
- World Time API
- Yande.re API v2
- ZenRows
- 国会会議録検索API
- BestPrintOnDemand Data
- Ironfang Render
- jstash
- RealUptime
- ScrapingBot
- Screenshot Happy
- SolidPing
Free Development APIs — common questions
Counts and timings below come from our own scheduled checks of this category.
How many free development APIs are there?
We track 325 in this category, of which 276 responded at our last check. 121 of them need no API key.
Which development APIs work without an API key?
121 of the 325 entries here need no credential. Filter this page by "no key" to see them, or browse the no-key collection for every keyless API across all categories.
Can I use these development APIs in a browser app?
47 entries in this category need no key and return CORS headers, which is the combination that lets you call them straight from client-side JavaScript. The rest need a server or a proxy in between.
Which is the fastest free development API?
Of the keyless options that responded at our last check, Open VSX was quickest at a median 272 ms. Speed is only one factor — coverage and licensing usually matter more — but it is measured here rather than claimed.
How do you know these APIs still work?
We call every listing on a schedule and record the status code, response time and whether CORS headers came back. Those results drive the badges on this page. Across the whole catalogue, 361 of 3,005 entries were not responding at the last full run, which is the sort of thing an unchecked list never tells you.