Frisby.js

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Frisby.js is ranked #34 of 35 in API testing tools on Inferse. It runs on API.

Purpose: Frisby.js is a REST API testing framework for checking that APIs return the expected properties, values, and types.docs.frisbyjs.com · 5 Oct 2026
Custom assertions: The framework lets users customize and extend assertions.docs.frisbyjs.com · 5 Oct 2026
Test runner: Frisby.js uses Jest to run tests and Jasmine-style assertion syntax.docs.frisbyjs.com · 5 Oct 2026
Installation: The docs show installing Frisby.js as a development dependency with npm install frisby --save-dev.docs.frisbyjs.com · 5 Oct 2026
HTTP methods: Frisby.js provides GET, POST, PUT, and DELETE helpers, plus a fetch method that accepts Fetch API options.docs.frisbyjs.com · 5 Oct 2026
Response checks: The project README lists built-in checks for status, headers, JSON values and types, body content, and response time.github.com · 5 Oct 2026
Schema validation: The docs demonstrate using Joi to assert JSON response types and constraints.docs.frisbyjs.com · 5 Oct 2026
Shared request settings: Global or per-test setup can apply request parameters such as headers, authentication, and cookies.docs.frisbyjs.com · 5 Oct 2026
File uploads: Frisby.js supports file uploads using FormData.docs.frisbyjs.com · 5 Oct 2026
License: The project README states that Frisby.js is licensed under the BSD 3-Clause license.github.com · 5 Oct 2026