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Free Documents & Productivity APIs with no API key

5 Documents & Productivity APIs that need no API key, account or credit card. 3 of them also allow CORS, so you can call them straight from browser JavaScript. Listed by uptime and ease of use.

  1. 1

    DocStruct API

    Online · 190 ms

    AI extraction of invoices, receipts, bank statements & contracts into structured JSON/CSV.

    • No API key needed
    • Fast: 190 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  2. 2TeamSort logo

    TeamSort API

    Online · 988 ms

    Create a ranked-choice poll from a text prompt and get a shareable link.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  3. 3

    AgentPay Doc Tools API

    Online · 657 ms

    PDF to text, RSS/Atom/JSON feeds to JSON and sitemaps to URL lists, paid per call via x402.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  4. 4WakaTime logo

    WakaTime API

    Online · 1196 ms

    Automated time tracking leaderboards for programmers.

    • No API key needed
    • HTTPS
    No authHTTPSCORS ?
  5. 5Vector Express v2.0 logo

    Vector Express v2.0 API

    Online · 790 ms

    Free vector file converting API.

    • No API key needed
    • HTTPS
    No authHTTPSNo CORS

Keyless Documents & Productivity APIs compared

Documents & Productivity APIs with no API key
APIAPI keyHTTPSCORSUptimeResponseRating
DocStructNoYesYesUp190 msNot rated
TeamSort logoTeamSortNoYesYesUp988 msNot rated
AgentPay Doc ToolsNoYesYesUp657 msNot rated
WakaTime logoWakaTimeNoYesUnknownUp1196 msNot rated
Vector Express v2.0 logoVector Express v2.0NoYesNoUp790 msNot rated

See also: best Documents & Productivity APIs · all 52 Documents & Productivity APIs · every API with no key

FAQ

Are there free Documents & Productivity APIs without an API key?

Yes. 5 free Documents & Productivity APIs need no API key or sign-up, including DocStruct API, TeamSort API and AgentPay Doc Tools API. You can send a request straight away.

Which keyless Documents & Productivity APIs can I call from JavaScript in the browser?

3 of them also support CORS, including DocStruct API, TeamSort API and AgentPay Doc Tools API, so a plain fetch from a web page works.

Do APIs without a key have limits?

Usually, yes. Keyless APIs typically rate-limit by IP address, so cache responses and avoid tight loops. For production traffic, an API with a free key tier often gives higher, more predictable limits.