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Finance
US Freelancer Tax API
Not rated yet · Be the first to rate it2026 US self-employment tax, quarterly estimates, QBI, mileage and home office deductions.
US Freelancer Tax API is a free Finance API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.
- Authentication
- None required
- HTTPS
- Yes
- CORS
- Yes
- Category
- Finance
- Uptime (30 days)
- 100%
Visit documentation ↗narwhalthepong.github.io
Online · 908 msTested Nov 15, 2026 · checked dailyIs it down? Status & uptime
About Gumroad developer guides
Three free JSON APIs for 2026: US freelancer tax (self-employment tax, quarterly estimates, due dates, mileage, home office, SEP/Solo 401(k), QBI), seller fees (Gumroad, Etsy, Stripe, PayPal) and GSA per diem rates. No key needed, curl examples included.
- Provider
- Gumroad developer guides
- Website
- narwhalthepong.github.io ↗
Details from narwhalthepong.github.io.
Key facts
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
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US Freelancer Tax API FAQ
Who provides the US Freelancer Tax API?
The US Freelancer Tax API is provided by Gumroad developer guides (narwhalthepong.github.io). Three free JSON APIs for 2026: US freelancer tax (self-employment tax, quarterly estimates, due dates, mileage, home office, SEP/Solo 401(k), QBI), seller fees (Gumroad, Etsy, Stripe, PayPal) and GSA per diem rates. No key needed, curl examples included.
Is the US Freelancer Tax API free?
Yes. The US Freelancer Tax API is listed in the Finance category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Does the US Freelancer Tax API require an API key?
No. The US Freelancer Tax API requires no authentication, so you can start making requests without signing up.
Can I call the US Freelancer Tax API from the browser?
Yes. The US Freelancer Tax API supports CORS, so front-end JavaScript can call it directly.
Does the US Freelancer Tax API support HTTPS?
Yes. The US Freelancer Tax API is served over HTTPS, so it's safe to use in production.
Maintain the US Freelancer Tax API? Add a badge
Show that US Freelancer Tax is listed on Public APIs. The badge displays its developer rating once it has one.
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