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Free API Today

Free developer and test-data APIs

22 of 22 returned the expected data at the last check, all without a key. Fake data for prototypes, echo servers for testing HTTP clients, placeholder images, package registries and vulnerability data.

22 APIs · no key · HTTPS

Build snapshot, not live. One verifier run on , from the machine that built this site. How we check

  • JSONPlaceholderWorking

    Fake posts, comments, todos and users for prototypes and tests.

    jsonplaceholder.typicode.comRuns in the browser219 msup 1 of 1 day

  • DummyJSONWorking

    Fake products, carts, users, posts and quotes with search and pagination.

    dummyjson.comRuns in the browser679 msup 1 of 1 day

  • Random User GeneratorWorking

    Generated people with name, address, email and photo.

    randomuser.meRuns in the browser407 msup 1 of 1 day

  • httpbinWorking

    Echoes your request back: headers, query, body, status codes, delays.

    httpbin.orgRuns in the browser584 msup 1 of 1 day

  • Postman EchoWorking

    Echo service for testing clients: methods, headers, auth, cookies.

    postman-echo.comServer only282 msup 1 of 1 day

  • UUID ToolsWorking

    Generates UUIDs of versions 1, 3, 4 and 5.

    www.uuidtools.comRuns in the browser343 msup 1 of 1 day

  • Lorem PicsumWorking

    Placeholder photos by size or id, and metadata about each photo.

    picsum.photosRuns in the browser380 msup 1 of 1 day

  • DiceBearWorking

    Generated avatars in many styles from a seed, as SVG or PNG.

    api.dicebear.comRuns in the browser302 msup 1 of 1 day

  • RoboHashWorking

    A robot avatar generated from any text.

    robohash.orgRuns in the browser181 msup 1 of 1 day

  • placehold.coWorking

    Placeholder images by size, colour, text and format.

    placehold.coRuns in the browser173 msup 1 of 1 day

  • QR Server (goQR.me)Working

    Renders a QR code image for any text or URL.

    api.qrserver.comRuns in the browser811 msup 1 of 1 day

  • The Color APIWorking

    Names a colour and converts it between hex, RGB, HSL and CMYK; builds schemes.

    www.thecolorapi.comRuns in the browser611 msup 1 of 1 day

  • EmojiHubWorking

    Random emoji by category or group, with HTML and Unicode codes.

    emojihub.yurace.proRuns in the browser604 msup 1 of 1 day

  • GitLab REST API (public data)Working

    Public projects, groups and users on gitlab.com.

    gitlab.comRuns in the browser387 msup 1 of 1 day

  • npm registryWorking

    Package metadata, versions and dist-tags.

    registry.npmjs.orgRuns in the browser69 msup 1 of 1 day

  • PyPI JSON APIWorking

    Metadata and release files of Python packages.

    pypi.orgRuns in the browser66 msup 1 of 1 day

  • crates.io APIWorking

    Rust crates with versions, downloads and owners.

    crates.ioRuns in the browser928 msup 1 of 1 day

  • PackagistWorking

    Composer package metadata for PHP libraries.

    repo.packagist.orgServer only252 msup 1 of 1 day

  • cdnjs APIWorking

    Libraries hosted on cdnjs with versions and file lists.

    api.cdnjs.comRuns in the browser248 msup 1 of 1 day

  • jsDelivr Data APIWorking

    Package versions, files and download statistics on jsDelivr.

    data.jsdelivr.comRuns in the browser1487 msup 1 of 1 day

  • endoflife.dateWorking

    Release cycles and end-of-life dates of software products.

    endoflife.dateRuns in the browser438 msup 1 of 1 day

  • NVD CVE APIWorking

    CVE records with CVSS scores from the US National Vulnerability Database.

    services.nvd.nist.govRuns in the browser574 msup 1 of 1 day

Before you pick one

Mock APIs accept POST and PUT but do not save anything. Use them to build the screen, then swap in your own backend.

Open an API’s page to see the exact request we send, the answer it gave, and how many of the last 30 days it was up. If it is marked CORS you can run the request from the page itself.

Questions

Which free developer and test-data APIs need no key?

All 22 listed here: JSONPlaceholder, DummyJSON, Random User Generator, httpbin, Postman Echo, UUID Tools, Lorem Picsum, DiceBear and 14 more. Each answered our verifier without a key or account.

Which developer and test-data APIs can I call from the browser?

In the Oct 3, 2026 run, 20 of 22 sent CORS headers: JSONPlaceholder, DummyJSON, Random User Generator, httpbin, UUID Tools, Lorem Picsum, DiceBear, RoboHash and 12 more. Call the rest (Postman Echo, Packagist) from a server.

Which one answered fastest?

PyPI JSON API, in 66 ms, in the Oct 3, 2026 run from our build machine. Latency depends on where you call from, so treat it as a rough guide.

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