Best Tracking APIs in 2026

The top 11 of 11 free Tracking APIs, ranked by how easy they are to start with (API key, HTTPS, CORS), how reliable they are in our daily health checks, and what developers rate them. PostalPinCode API takes the top spot.

Last tested Oct 24, 2026 · Rankings update daily

1
PostalPinCode API
Online · 857 ms
API for getting Pincode details in India.
- No API key needed
- HTTPS
No authHTTPSCORS ?
2
WeCanTrack API
Online · 713 ms
Automatically place subids in affiliate links to attribute affiliate conversions to click data.
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS
3
WhereParcel API
Online · 692 ms
Unified parcel tracking API across 60+ carriers worldwide (USPS, FedEx, UPS, DHL, etc.).
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS
4
WhatPulse API
Online · 1429 ms
Small application that measures your keyboard/mouse usage.
- No API key needed
- HTTPS
No authHTTPSCORS ?
5
Aftership API
Online · 506 ms
API to update, manage and track shipment efficiently.
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS
6
Mapbox API
Online · 519 ms
Maps, directions, geocoding. A free tracking API by Mapbox.
- HTTPS
apiKeyHTTPSCORS ?
7
UPS API
Online · 477 ms
Track the health of UPS APIs and stay up to date on issues such as network or system outages, scheduled maintenance, and resolved issues.
- HTTPS
apiKeyHTTPSCORS ?
8
Pixela API
Online · 1931 ms
API for recording and tracking habits or effort, routines.
- Callable from the browser (CORS)
- HTTPS
X-Mashape-KeyHTTPSCORS
9
Correios API
Online · 3672 ms
Integration to provide information and prepare shipments using Correio's services.
- HTTPS
apiKeyHTTPSCORS ?
10P
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 ?
11
PostNord API
Online · 585 ms
Provides information about parcels in transport for Sweden and Denmark.
apiKeyNo HTTPSCORS ?

Tracking APIs compared

Top Tracking APIs compared
API	API key	HTTPS	CORS	Uptime	Response	Rating
PostalPinCode	No	Yes	Unknown	Up	857 ms	Not rated
WeCanTrack	Required	Yes	Yes	Up	713 ms	Not rated
WhereParcel	Required	Yes	Yes	Up	692 ms	Not rated
WhatPulse	No	Yes	Unknown	Up	1429 ms	Not rated
Aftership	Required	Yes	Yes	Up	506 ms	Not rated
Mapbox	Required	Yes	Unknown	Up	519 ms	Not rated
UPS	Required	Yes	Unknown	Up	477 ms	Not rated
Pixela	X-Mashape-Key	Yes	Yes	Up	1931 ms	Not rated
Correios	Required	Yes	Unknown	Up	3672 ms	Not rated
Postmon	No	No	Unknown	Up	747 ms	Not rated

More Tracking APIs

Best Tracking API FAQ

What is the best free Tracking API in 2026?

Based on access, reliability and developer ratings, the top free Tracking APIs right now are PostalPinCode API, WeCanTrack API and WhereParcel API. PostalPinCode API ranks first. Rankings update daily from health checks of all 11 Tracking APIs in the directory.

What is the best Tracking API without an API key?

PostalPinCode API, WhatPulse API and Postmon API need no API key, so you can call them without signing up. 3 of the 11 ranked Tracking APIs are keyless.

Which Tracking API works from the browser?

WeCanTrack API, WhereParcel API and Aftership API support CORS over HTTPS, so front-end JavaScript can call them directly without a proxy.

How are these APIs ranked?

Each API gets a score from: no API key (+), HTTPS (+), CORS support (+), 30-day uptime and response time from our daily health checks, and ratings from developers on this site. APIs that failed three checks in a row are left out until they recover.