Best API Testing Tools in 2026
Updated
35 API testing tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
35ranked
3free plans on this page
4 Oct 2026last checked
API Testing Tools, one module each. A lit port is something its maker publishes; 0 of the 10 on this page have a public API.
- 26 Assertible API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 27 HTTPie API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 28 HttpMaster API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 29 Stoplight Prism API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 30 RESTler API not on recordOSS not on recordFREE not on recordDOCS 4.9
- 31 RestTestGen API not on recordOSS not on recordFREE not on recordDOCS 4.9Free
- 32 REST Assured API not on recordOSS not on recordFREE not on recordDOCS 4.8Free
- 33 RESTest API not on recordOSS not on recordFREE not on recordDOCS 4.8
- 34 Frisby.js API not on recordOSS not on recordFREE not on recordDOCS 4.6
- 35 SuperTest API not on recordOSS not on recordFREE not on recordDOCS 4.6Free
Compare all 10 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | GraphQL support | SOAP support |
|---|---|---|---|---|---|---|---|---|
| 26 | Assertible | 5.0 | No | — | Yes | — | — | — |
| 27 | HTTPie | 5.0 | No | — | Yes | — | Yes | — |
| 28 | HttpMaster | 5.0 | No | — | Yes | — | — | Yes |
| 29 | Stoplight Prism | 5.0 | No | — | Yes | — | — | — |
| 30 | RESTler | 4.9 | No | — | Yes | — | — | — |
| 31 | RestTestGen | 4.9 | Free plan | Free | Yes | — | — | — |
| 32 | REST Assured | 4.8 | Free plan | Free | — | — | — | — |
| 33 | RESTest | 4.8 | No | — | — | — | — | — |
| 34 | Frisby.js | 4.6 | No | — | — | — | — | — |
| 35 | SuperTest | 4.6 | Free plan | Free | — | — | — | — |
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