US Freelancer Tax API alternatives

2026 US self-employment tax, quarterly estimates, QBI, mileage and home office deductions. If it doesn't fit your project, here are the 10 best free Finance APIs to use instead in 2026, out of 111 in the directory.

For reference, US Freelancer Tax API: No API key needed · 100% uptime (30 days) · Callable from the browser (CORS).

1. 1

   Econdb API

   Online · 691 ms

   Download economic and shipping data using Python.

   • No API key needed
   • 100% uptime (30 days)
   • Returns JSON at its URL
   • Callable from the browser (CORS)

   No authHTTPSCORS
2. 2

   Banking Access Index API

   Online · 913 ms

   Which US business banking providers accept founders by country of residence, with sources.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
3. 3

   Brainy Prices API

   Online · 903 ms

   UAE living costs: KHDA fees, DLD rents, fuel, utilities, telecom and relocation, with dated sources.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
4. 4

   EstimateTax API

   Online · 889 ms

   US federal, state and local income tax calculation for 2026, with the source of every figure.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
5. 5

   FloorGuard API

   Online · 639 ms

   Sourced prop firm daily-loss and max-drawdown rules, plus a drawdown-room check.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
6. 6

   FundBiz API

   Online · 1101 ms

   UK specialty business finance lender terms, typical rates and decision times.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
7. 7

   Futures Clock API

   Online · 815 ms

   Trading hours and session windows for 65 futures products on 16 global exchanges.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
8. 8

   Grizzly Bulls API

   Online · 1104 ms

   U.S. GDP, CPI, unemployment, and payroll history.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
9. 9

   Helious API

   Online · 942 ms

   US Treasury auction results with the tail and bidder split, plus scored economic releases.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
10. 10

    India GST HSN & SAC API

    Online · 939 ms

    Indian GST HSN and SAC classification code lookup and search.

    • No API key needed
    • 100% uptime (30 days)
    • Callable from the browser (CORS)
    • HTTPS

    No authHTTPSCORS

US Freelancer Tax API vs alternatives

US Freelancer Tax API compared with its alternatives

API	API key	HTTPS	CORS	Uptime	Response	Rating
US Freelancer Tax	No	Yes	Yes	100%	908 ms	Not rated
Econdb	No	Yes	Yes	100%	691 ms	Not rated
Banking Access Index	No	Yes	Yes	100%	913 ms	Not rated
Brainy Prices	No	Yes	Yes	100%	903 ms	Not rated
EstimateTax	No	Yes	Yes	100%	889 ms	Not rated
FloorGuard	No	Yes	Yes	100%	639 ms	Not rated
FundBiz	No	Yes	Yes	100%	1101 ms	Not rated
Futures Clock	No	Yes	Yes	100%	815 ms	Not rated
Grizzly Bulls	No	Yes	Yes	100%	1104 ms	Not rated

See also: best Finance APIs · all Finance APIs