Category
Development APIs
216 APIs, 106 of them with no auth listed. Each one links to its own page with auth, HTTPS, CORS and the official docs.
APIs216
No auth listed49%106 of 216
HTTPS99%
CORS enabled52%
Docs link reachable92%at the last weekly check
Quick starts
No key, HTTPS and CORS, and the docs link answered at the last check: call these from a web page in minutes.
24 Pull RequestsProject to promote open source collaboration during December
Agent NexusContinuously probed registry of APIs, MCP servers and CLIs callable by agents
Agify.ioEstimates the age from a first name
ApicAgentExtract device details from user-agent string
BeeceptorBuild a mock Rest API endpoint in seconds
claudecookieConvert cookie formats, check Claude sessions and generate Claude Code credentials
All Development APIs
- 24 Pull RequestsProject to promote open source collaboration during DecemberNo authCORS
Aether BridgeAutonomous agent team management and API workflow orchestrationapiKey- Agent NexusContinuously probed registry of APIs, MCP servers and CLIs callable by agentsNo authCORS
- AgentPay Domain LookupDNS records, WHOIS/RDAP, IP ownership and domain reports for AI agents, paid per call via x402No authCORS
- Agify.ioEstimates the age from a first nameNo authCORS
- AllscreenshotsWebsite screenshots and PDFs with full-page capture, dark mode and ad blockingapiKey
AmazonscraperapiAmazon product, search & batch scraping API with residential proxies (1000 free)apiKey
AmberOneTurn any website into a build-ready Android, iOS, PWA or Electron app projectapiKey- AnswerLineAnswers, citations and sources from AI assistants and Google surfaces through one APIapiKeyCORS
- API GrátisMultiples services and public APIsNo auth
API Tool CallsAPI Tool Calls: Home cost planners, page to Markdown, SEO checks and recallsNo auth- ApicAgentExtract device details from user-agent stringNo authCORS
ApiFlashChrome based screenshot API for developersapiKey
APIs.guruWikipedia for Web APIs, OpenAPI/Swagger specs for public APIsNo auth- APIzoneIndependent uptime & status monitoring for 200+ popular APIsNo authCORS
AquanodeLive GPU rental prices and availability across nine cloud providersNo authAzure DevOpsThe Azure DevOps basic components of a REST API request/response pairapiKey
- BaseBuilding quick backendsapiKeyCORSLink down
- BeeceptorBuild a mock Rest API endpoint in secondsNo authCORS
BitbucketBitbucket APIOAuth- Blague.xyzLa plus grande API de Blagues FR/The biggest FR jokes APIapiKeyCORS
BlitappSchedule screenshots of web pages and sync them to your cloudapiKey- Blynk-CloudControl IoT Devices from Blynk IoT CloudapiKey
- BoredFind random activities to fight boredomNo auth
- BountyCheckClaimability verdicts for GitHub bounty issues; free stats and sample, checks paid per call via x402No authCORS
- Brainshop.aiMake A Free A.I BrainapiKeyCORS
BrewPageFree hosting for HTML, JSON, key-value, files, multi-file sites with short URLs and TTL retentionNo auth
BrowshotEasily make screenshots of web pages in any screen size, as any deviceapiKeyCORS
CDNJSLibrary info on CDNJSNo auth
Changelogs.mdStructured changelog metadata from open source projectsNo auth- ChartBytesChart image API: turn a URL into a PNG or SVG chart (bar, line, area, scatter, pie, donut, stacked)No authCORS
CiprandSecure random string generatorNo auth
ClairLive public web data as JSON: Google Search, Maps, News, Amazon, jobs, reviews & more, one API keyapiKey- claudecookieConvert cookie formats, check Claude sessions and generate Claude Code credentialsNo authCORS
CloudflareManage DNS, CDN, Workers and other services; documented with an official OpenAPI 3.0 specapiKey
Cloudflare TraceGet IP Address, Timestamp, User Agent, Country Code, IATA, HTTP Version, TLS/SSL Version & MoreNo authCORS
CodebergGit hosting, repos and issues via Gitea APINo authCORS- CodexOnline Compiler for Various LanguagesNo authLink down
- Contentful ImagesUsed to retrieve and apply transformations to imagesapiKeyCORS
CORS ProxyGet around the dreaded CORS error by using this proxy as a middle manNo authCORS- CountAPIFree and simple counting service. You can use it to track page hits and specific eventsNo authCORSLink down
crates.ioRust crate versions, downloads and dependency metadataNo authCORS
Crawl ReadinessCheck if AI crawlers (ChatGPT, Claude, Perplexity, 30+ others) can access any websiteapiKeyCORS- CurlShotScreenshots, PDFs and scrolling videos of any URL, HTML or Markdown; free tierapiKeyCORS
DatabricksService to manage your databricks account,clusters, notebooks, jobs and workspacesapiKeyCORS
Diagrams.soGenerate editable draw.io architecture diagrams from text or infrastructure codeapiKey
DigitalOcean StatusStatus of all DigitalOcean servicesNo auth
DigMyNameDomain availability and registrar pricing across 52 TLDsNo authCORS
Docker HubInteract with Docker HubapiKeyCORS- Domain Info by LifeStepDNS records, SPF/DMARC detection and TLS certificate expiryNo authCORS
- DomainDb InfoDomain name search to find all domains containing particular words/phrases/etcNo auth
dotsweepDomain availability across 1200+ TLDs with registration and renewal pricesNo authCORS- DownStatusReal-time status for GitHub, AWS, Discord and 90+ servicesNo authCORS
EndOfLife.dateSoftware end-of-life dates and support lifecyclesNo authCORS
ExtendsClass JSON StorageA simple JSON store APINo authCORS
Fair DrawVerifiable random draws bound to the drand public randomness beaconNo authCORS
FramejetWebsite screenshot API with cookie banners and chat widgets removed; free tierapiKey
GcrawlAIWeb scraping, SERP API, screenshots, URL to Markdown and prebuilt extractorsapiKeyCORS
GeekFlareProvide numerous capabilities for important testing and monitoring methods for websitesapiKey
Genderize.ioEstimates a gender from a first nameNo authCORS- GeraCodeBarcode (EAN-13, UPC-A, Code 128, ITF-14) and QR code images, PNG or SVG. Docs in PortugueseNo authCORS
- GETPingTrigger an email notification with a simple GET requestapiKeyLink down
GhostGet Published content into your Website, App or other embedded mediaapiKeyCORS- GitHubMake use of GitHub repositories, code and user info programmaticallyOAuthCORS
- GithubTrendsGitHub Trending repositories with star history and open-source alternatives to paid toolsNo authCORS
- GitlabAutomate GitLab interaction programmaticallyOAuth
- GitterChat for DevelopersOAuthLink down
- GlitterlyImage generation APIapiKeyCORSLink down
Go Module ProxyGo module versions and source metadataNo auth
Google DocsAPI to read, write, and format Google Docs documentsOAuth
Google FirebaseGoogle's mobile application development platform that helps build, improve, and grow appapiKeyCORS
Google FontsMetadata for all families served by Google FontsapiKey
Google KeepAPI to read, write, and format Google Keep notesOAuth
Google PageSpeed InsightsWebsite performance and Lighthouse audit scoresapiKeyCORS
Google SheetsAPI to read, write, and format Google Sheets dataOAuth
Google SlidesAPI to read, write, and format Google Slides presentationsOAuth- GorestOnline REST API for Testing and PrototypingOAuth
HasuraGraphQL and REST API Engine with built in AuthorizationapiKeyCORS
HerokuREST API to programmatically create apps, provision add-ons and perform other task on HerokuOAuthCORS
HexElixir and Erlang package versions and docsNo auth- HipsumHipster-themed lorem ipsum generator for placeholder textNo auth
Homebrew FormulaePackage and cask data for the Homebrew package managerNo auth- host-t.comBasic DNS query via HTTP GET requestNo auth
- Host.ioDomains Data API for DevelopersapiKeyCORS
- HostDealRadarSource-backed hosting price and provider record lookupNo authCORS
HTTP2.ProTest endpoints for client and server HTTP/2 protocol supportNo auth
HttpbinA Simple HTTP Request & Response ServiceNo authCORS
HunterAPI for domain search, professional email finder, author finder and email verifierapiKey
IBM Text to SpeechConvert text to speechapiKeyCORS- IcanhazepochGet Epoch timeNo authCORS
IcanhazipIP Address APINo authCORS
IFTTTIFTTT Connect APINo auth
Image-ChartsGenerate charts, QR codes and graph imagesNo authCORS
import.ioRetrieve structured data from a website or RSS feedapiKey
Index AgenticaAgent-first directory of skills, MCP servers, tools, protocols and APIs as JSON, markdown, llms.txtNo authCORS- ip-fast.comIP address, country and cityNo authCORS
IP2WHOIS Information LookupWHOIS domain name lookupapiKey- ipfind.ioGeographic location of an IP address or any domain name along with some other useful informationapiKeyCORS
IPifyA simple IP Address APINo auth
IPinfoAnother simple IP Address APINo auth
Ironfang RenderScreenshots, PDFs, dynamic images, QR codes and video from URLs or HTMLapiKey- Is This Site Down?Check if any website is down, from two continents; live status, uptime history and TLS expiryNo authCORS
- isitdownstatusCheck if websites and online services are currently downNo auth
jsDelivrPackage info and download stats on jsDelivr CDNNo authCORS
JSON 2 JSONPConvert JSON to JSONP (on-the-fly) for easy cross-domain data requests using client-side JavaScriptNo auth
JSONbin.ioFree JSON storage service. Ideal for small scale Web apps, Websites and Mobile appsapiKeyCORSJSONPlaceholderFake REST API for testing and prototypingNo authCORS
jstashSave JSON with one request and get a URL; private JSON for each signed-in user of your appapiKey
KeyvalueSimple key-value storage REST API for quick prototypingNo auth
KrokiCreates diagrams from textual descriptionsNo authCORS- LabelixaRender, validate and generate Zebra ZPL label barcodes as PNG/PDFapiKeyCORS
License-APIUnofficial REST API for choosealicense.comNo auth
Litport Free ProxyLive-tested HTTP, SOCKS4, and SOCKS5 proxies with latency, uptime, and geolocationNo auth
LiveOrDownLive up/down status of 240+ online services, checked every minute from 3 regionsNo authCORS- Logs.toGenerate logsapiKey
- Lua DecompilerOnline Lua 5.1 DecompilerNo authCORSLink down
- MAC address vendor lookupRetrieve vendor details and other information regarding a given MAC address or an OUIapiKeyCORSLink down
macadressMAC address and OUI vendor lookup synced from IEEE, with randomized-MAC detectionNo authCORSMicro DBSimple database serviceapiKeyLink down
- Micro-SaaS AI Suite8 serverless AI APIs for sentiment analysis, copy generation, email verification, & OCRapiKey
- MicroENVFake Rest API for developersNo authLink down
- MockyMock user defined test JSON for REST API endpointsNo authCORSLink down
msgboardPublic message board for agent-to-agent messaging, no account or keyNo auth
MY IPGet IP address informationNo auth
MyIPRightNowPublic IP address with network, location, and connection detailsNo authCORS
NameGenderGender from a first name, full name, email or username, with probabilityapiKeyCORS
Nationalize.ioEstimate the nationality of a first nameNo authCORS
NerdulatorEverything derivable from one value: numbers, dates, colours, UUIDs, cron expressionsNo authCORS
NetlifyNetlify is a hosting service for the programmable webOAuth
NetworkCalcNetwork calculators, including subnets, DNS, binary, and security toolsNo authCORS
npm RegistryQuery information about your favorite Node.js libraries programaticallyNo authNuGet.NET package versions, metadata and searchNo authCORS
OneSignalSelf-serve customer engagement solution for Push Notifications, Email, SMS & In-AppapiKey
Open Page RankAPI for calculating and comparing metrics of different websites using Page Rank algorithmapiKey
Open VSXSearch and access VS Code extensions from the Open VSX registryNo authCORS
OpenAPIHubThe All-in-one API PlatformX-Mashape-Key
OpenGraphrReally simple API to retrieve Open Graph data from an URLapiKey
OpenQRGenerate QR codes and manage dynamic (editable) QR codes with scan analyticsapiKeyCORS
Orca ScanGenerate barcode images (QR, Code 128, EAN, Data Matrix and more) in SVG, PNG, JPG or PDFNo authCORS
OutageDeckLive status and incidents for 170+ cloud and SaaS providers from official feedsNo authCORS
oyyiAPI for Fake Data, image/video conversion, optimization, pdf optimization and thumbnail generationNo authCORS
PackagistPHP Composer package versions and dist metadataNo auth- PageCDNPublic API for javascript, css and font libraries on PageCDNapiKeyCORS
- PeakCloudflare Turnstile and 5-second challenge solving, pay per successful solve, 1,000 free solvesapiKeyCORS
- PostmanTool for testing APIsapiKey
ProxyCrawlScraping and crawling anticaptcha serviceapiKey
ProxyForgeFree auto-updating list of live-tested proxies (HTTP/HTTPS/SOCKS4/SOCKS5), refreshed every 6 hNo authCORS- ProxyKingdomRotating Proxy API that produces a working proxy on every requestapiKeyCORSLink down
Pusher BeamsPush notifications for Android & iOSapiKey- QR & BarcodeQR codes and barcodes (Code 128, EAN-13, Data Matrix, PDF417 + more). SVG or PNG outputNo authCORSLink down
QR codeCreate an easy to read QR code and URL shortenerNo authCORS
QR codeGenerate and decode / read QR code graphicsNo auth- QR Code by LifeStepGenerate QR codes as PNG or SVG with size, border and color optionsNo authCORS
QR Code CrafterGenerate static QR codes in SVG, PNG, JPG, WebP, PDF, or EPSNo authCORS- QR CodesGenerate QR codes via a single GET request, with logo embedding and custom colorsapiKey
Qrcode MonkeyIntegrate custom and unique looking QR codes into your system or workflowNo auth
QRXArtistic, branded QR codes from a text prompt and a link, checked to scanapiKey
QuickChartGenerate chart and graph imagesNo authCORS
QuotableRandom quotes with authors and tagsNo authCORS- Random StuffCan be used to get AI Response, jokes, memes, and much more at lightning-fast speedapiKeyCORSLink down
RealUptimeManage uptime monitors, heartbeat checks, incidents and status pages with an API keyapiKey- RejaxReverse AJAX service to notify clientsapiKeyLink down
ReplyNodesConvert a public web page into clean MarkdownNo auth- ReqResA hosted REST-API ready to respond to your AJAX requestsNo auth
- RSS feed to JSONReturns RSS feed in JSON format using feed URLNo authCORS
RubyGemsRuby gem metadata, versions, dependencies and searchNo authCORS- SavePage.ioA free, RESTful API used to screenshot any desktop, or mobile websiteapiKeyCORS
ScrapeNinjaScraping API with Chrome fingerprint and residential proxiesapiKey
ScraperApiEasily build scalable web scrapersapiKey- scraperBoxUndetectable web scraping APIapiKeyCORS
scrapestackReal-time, Scalable Proxy & Web Scraping REST APIapiKey
ScrapingAntHeadless Chrome scraping with a simple APIapiKey
ScrapingBotWeb scraping, AI extraction, and public TikTok, Instagram, Google and Amazon data as JSONapiKey
ScrapingDogProxy API for Web scrapingapiKey
ScrappaGoogle Search, Maps, Jobs, YouTube and review site results as structured JSONapiKeyCORS- ScraxWeb scraping API that only bills for successful scrapesapiKey
ScreenshotTake programmatic screenshots of web pages from any websiteapiKeyCORS- Screenshot HappyWebsite screenshot API (PNG/JPEG/PDF) with full-page capture and visual-diff monitorsapiKey
ScreenshotAPI.netCreate pixel-perfect website screenshotsapiKeyCORS- SegmentLiteLightweight event routing and webhook fan-out API alternative to SegmentapiKeyCORS
Serialif ColorColor conversion, complementary, grayscale and contrasted textNo auth
SerplyGoogle, Bing, News, Scholar and Maps search results and page scraping as JSONapiKeyCORS
serpstackReal-Time & Accurate Google Search Results APIapiKeyCORS
SheetsuEasy google sheets integrationapiKey
ShotanvilScreenshot, PDF and HTML rendering API with a free tier, API key or x402 authapiKey
SHOUTCLOUDALL-CAPS AS A SERVICENo auth- SiteIntelExtract metadata, tech stack, emails, and screenshots from any URLapiKey
SnapRenderWebsite screenshots as PNG, JPEG, WebP or PDF, and page content as markdown, with a free tierapiKeyCORS
SnoopScanScrape, crawl, map and search the web as clean markdown or JSON, with a free monthly tierapiKey
SolidPingCreate and run uptime checks, read results and incidents, manage status pages, with a free tierapiKey
SonarProject Sonar DNS Enumeration APINo authCORS
SonarQubeSonarQube REST APIs to detect bugs, code smells & security vulnerabilitiesOAuthStackExchangeQ&A forum for developersOAuth
StaticallyA free CDN for developersNo authCORS- SupportivekoalaAutogenerate images with templateapiKeyCORSLink down
SuprsonicUnified agent API: search, scrape, enrich, image gen, TTS, STT, messaging. One key, 20+ capabilitiesapiKeyCORS- TalordataSERP data from major search engines with a free trialapiKey
TheQRCodeGenerate QR codes for URLs, WiFi, contact cards, email and text, with custom colors and stylingNo authCORS
Thunder ClientAPI testing toolNo authCORS
ThunderbitExtract web pages as Markdown or structured data for AI appsapiKey
TidyToolsWeb page to clean Markdown and AI crawler robots.txt checks, free without a key (rate limited)No authCORS
Timezone WorldTimeCurrent time, UTC offset and DST for any time zone or IP, a drop-in WorldTimeAPI replacementNo authCORSTinyMind Agent ToolsFree APIs by an AI agent on a VPS: actor lookup, word-of-the-day, poems, jokes, pingNo authCORS
ToolForteDeterministic utilities: IBAN/VAT validation, cron parsing, regex, diffs, Dutch holidays, test dataapiKey- TykApi and service management platformapiKeyCORS
URLpipeTurn a URL into Markdown, screenshots, metadata or Lighthouse audits, rendered in real ChromeapiKey
UserstackSecure User-Agent String Lookup JSON APIOAuth
Utilorax203 JSON endpoints: hashing, encoding, unit conversion, text, dates and file conversionapiKeyCORS- VornamencheckGender probability for a first name, optionally per country; documentation in GermanNo authCORS
W3C ValidatorValidate HTML and check markup errorsNo auth
WandboxCode compiler supporting 35+ languages mentioned at wandbox.orgNo authLink down- Web Metadata & Contact ExtractorExtract SEO metadata, contact emails, social links, and tech stack (<200ms)apiKeyCORS
WebclawWeb content extraction for LLMs with scrape, crawl, search, and summarizeapiKeyCORS
WebScraping.AIWeb Scraping API with built-in proxies and JS renderingapiKeyCORS- XLSX InspectorInspect XLSX/XLSM structure: sheets, formulas, macros and external linksNo authCORS
- ZenRowsWeb Scraping API that bypasses anti-bot solutions while offering JS rendering, and rotating proxiesapiKey