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Free Tracking APIs with no API key

3 Tracking APIs that need no API key, account or credit card. 0 of them also allow CORS, so you can call them straight from browser JavaScript. Listed by uptime and ease of use.

  1. 1PostalPinCode logo

    PostalPinCode API

    Online · 857 ms

    API for getting Pincode details in India.

    • No API key needed
    • HTTPS
    No authHTTPSCORS ?
  2. 2WhatPulse logo

    WhatPulse API

    Online · 1429 ms

    Small application that measures your keyboard/mouse usage.

    • No API key needed
    • HTTPS
    No authHTTPSCORS ?
  3. 3

    Postmon API

    Online · 747 ms

    An API to query Brazilian ZIP codes and orders easily, quickly and free.

    • No API key needed
    No authNo HTTPSCORS ?

Keyless Tracking APIs compared

Tracking APIs with no API key
APIAPI keyHTTPSCORSUptimeResponseRating
PostalPinCode logoPostalPinCodeNoYesUnknownUp857 msNot rated
WhatPulse logoWhatPulseNoYesUnknownUp1429 msNot rated
PostmonNoNoUnknownUp747 msNot rated

See also: best Tracking APIs · all 11 Tracking APIs · every API with no key

FAQ

Are there free Tracking APIs without an API key?

Yes. 3 free Tracking APIs need no API key or sign-up, including PostalPinCode API, WhatPulse API and Postmon API. You can send a request straight away.

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.