Best API Testing Tools in 2026
Updated
In short: Apidog is ranked #1 of 35 as of 4 October 2026, ahead of Bruno and Pact. The best-ranked option with a free plan is Bruno. The lowest first paid tier on this page is Bruno at $0.50/mo.
API testing tools can help you send requests, check contracts, and incorporate validation into development workflows. Compared on CI/CD integration and contract testing, the entries also cover GraphQL and SOAP support, mock servers, and scheduled runs. Consider which API types and testing patterns your team uses, then assess included requests against that work. Free-plan availability and paid-from pricing provide further points to compare. Apidog, Bruno, and Pact are among the named options. The listed integrations and capabilities can help you weigh how each tool fits your approach to testing APIs and maintaining checks over time.
35 API testing tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
API Testing Tools, one module each. A lit port is something its maker publishes; 8 of the 25 on this page have a public API.
- 01 Apidog API yesOSS not on recordFREE yesDOCS 7.4$2.25/mo
- 02 Bruno API yesOSS not on recordFREE yesDOCS 7.4$0.50/mo
- 03 Pact API yesOSS not on recordFREE yesDOCS 7.4$115.42/mo
- 04 Hoppscotch API yesOSS not on recordFREE yesDOCS 7.3$6/mo
- 05 Karate API yesOSS not on recordFREE yesDOCS 7.3$8.33/mo
- 06 PactFlow API yesOSS not on recordFREE yesDOCS 7.3$115.42/mo
- 07 Apiary API yesOSS not on recordFREE yesDOCS 7.2Free
- 08 Parasoft SOAtest API yesOSS not on recordFREE not on recordDOCS 6.9
- 09 Kreya API not on recordOSS not on recordFREE yesDOCS 6.0$5/mo
- 10 Postman API not on recordOSS not on recordFREE yesDOCS 6.0$9/mo
- 11 Insomnia API not on recordOSS not on recordFREE yesDOCS 5.9$12/mo
- 12 SoapUI API not on recordOSS not on recordFREE yesDOCS 5.9Free
- 13 Schemathesis API not on recordOSS not on recordFREE yesDOCS 5.8Free
- 14 Stoplight Elements API not on recordOSS not on recordFREE yesDOCS 5.8Free
- 15 Thunder Client API not on recordOSS not on recordFREE yesDOCS 5.7$3/mo
- 16 ReadyAPI API not on recordOSS not on recordFREE not on recordDOCS 5.4
- 17 Yaak API not on recordOSS not on recordFREE not on recordDOCS 5.3$6.58/mo
- 18 Keploy API not on recordOSS not on recordFREE not on recordDOCS 5.2
- 19 Citrus API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 20 EvoMaster API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 21 EvoMaster API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 22 Hurl API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 23 PactumJS API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 24 Step CI API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 25 Tavern API not on recordOSS not on recordFREE not on recordDOCS 5.1
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which API testing tool is ranked first on Inferse?
Apidog is ranked #1 of 35 with a score of 7.4. Bruno is second and Pact third.
How many of these have a free plan?
14 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Bruno has the lowest first paid tier we found: $0.50/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.