LaunchRanked
Launch free
Developer toolsFreeDofollowDR35Domain Rating by Ahrefs
  • #api
  • #free-apis
  • #students

Submit to Free Public APIs

Free Public APIs is a list of several hundred no-cost APIs that are tested automatically every day and ranked by speed and reliability. It started as a resource for students at a Swiss university and now serves developers generally; listed APIs get a page with health metrics and a link to their docs.

Open the submit page

freepublicapis.com · Checked

Free Public APIs at a glance

Pricing
Free
Free to add an API; sidebar ad spot advertised at $199/month
Link type
Dofollow
Listing https://www.freepublicapis.com/swiss-federal-railways-(sbb) links to the API docs at data.sbb.ch with target=_blank and no rel attribute (checked 2026-09-23)
Review
Not stated
Link back required
No
Account required
Not verified
Domain Rating
DR35
Domain Rating by Ahrefs, checked Sep 24, 2026. A score of the whole site’s backlinks, not a Google metric.
Tranco rank
Not ranked
No Tranco rank on record for this site.
Who browses it
Students and developers who need a reliable free API for a project
Last checked

How to submit to Free Public APIs

  1. Open the Free Public APIs submission page

    This is the page makers use to add a product.

  2. Sign up if asked

    We couldn’t confirm whether an account is required. Use a company email if one is needed.

  3. Have your assets ready

    Name, tagline, description, logo and screenshots. The checklist below covers what to prepare so you can fill the form in one go.

  4. Fill in the form carefully

    Pick the most specific category the form offers and write the description for the people who browse Free Public APIs (Students and developers who need a reliable free API for a project), not for search engines.

  5. Wait, then check

    We couldn’t confirm how listings are reviewed. Once yours is live, check the details and that the link points to the right page.

Tips for Free Public APIs

  • Only genuinely free APIs fit; the list is built around no-cost access.
  • Uptime and response time are tested daily, so an unreliable endpoint will look bad or be tagged dead.
  • APIs from a specific city, country or company are explicitly welcomed on the About page.

From Free Public APIs’s own guidelines and pages, in our words.

What to prepare

The basics every directory asks for, plus what matters most for developer tool directories.

  • Product name and a one-line tagline (about 60 characters)
  • A short description (1–2 sentences) and a longer one (a short paragraph)
  • Square logo, at least 256×256 px, PNG or SVG
  • 2–3 screenshots at a consistent size
  • The exact page you want the link to point to
  • Pricing model (free, freemium or paid) and a contact email
  • Links to your docs and a quick-start or install command
  • Your GitHub or GitLab repo, if public
  • Supported languages, frameworks and platforms
  • Pricing for the API or hosted tier, including free limits

Is Free Public APIs worth it?

A followed link, with a low bar

The listing link we inspected was followed, but we couldn’t confirm that anyone reviews listings. Directories that accept everyone tend to carry less weight, so treat it as a small plus, not a priority.

  • Domain Rating by Ahrefs: 35 (moderate). That's the strength of links to the whole site, not a promise about what your listing passes on.
  • No Tranco rank on record, so we can’t say how much traffic it gets.
  • Free to list, so the only cost is your time.

This verdict is worked out from the facts above with fixed rules (link type, review, price, Domain Rating by Ahrefs, Tranco rank), not paid for. The directory has no say in it.

Questions about Free Public APIs

Is Free Public APIs free?

Yes. Listing on Free Public APIs is free. Pricing details: Free to add an API; sidebar ad spot advertised at $199/month. We checked on Sep 23, 2026.

Does Free Public APIs give a dofollow link?

Yes. The listing link we inspected was a followed (dofollow) link. Evidence: Listing https://www.freepublicapis.com/swiss-federal-railways-(sbb) links to the API docs at data.sbb.ch with target=_blank and no rel attribute (checked 2026-09-23).

How do I submit to Free Public APIs?

Submit at https://www.freepublicapis.com/add. Tip: Only genuinely free APIs fit; the list is built around no-cost access.

Alternatives to Free Public APIs

All developer tool directories

Also in these lists

Free Public APIs appears on these niche lists, next to other places to submit the same kind of product.

Developer tools71APIs32Free directories347Dofollow directories251Free dofollow directories199
All niche lists

Sources

The pages we opened on Sep 23, 2026 to write this page.