Topics / #api-testing

API testing projects on GitHub

Tools for testing and validating API endpoints and responses.

As of , the most-starred API testing projects on GitHub are hoppscotch (80.6K stars), bruno (47.7K stars) and insomnia (40K stars). GitHub.Locker tracks 9 API testing repositories with 280.7K stars combined. The fastest-growing on October 16 was bruno, with +24 stars in a day.

9Projects
280.7KStars in total
+76Stars in a day
Browse in the catalog →github.com/topics/api-testing ↗

Hot right now

Most stars gained in a day · Oct 16

+24

bruno

usebruno/bruno · ★ 47.7K

Bruno is an open-source API client for exploring and testing REST, GraphQL, and other APIs, built as a lightweight alternative to Postman and Insomnia.

+21

keploy

keploy/keploy · ★ 18.6K

Keploy is an open-source tool that auto-generates API and integration tests from real traffic: it records your API calls, database queries and streaming events, then replays them as tests.

+10

Mobile-Security-Framework-MobSF

MobSF/Mobile-Security-Framework-MobSF · ★ 22K

MobSF is an automated, all-in-one mobile security framework: it performs static and dynamic analysis, penetration testing, malware analysis and privacy analysis on Android, iOS and Windows Mobile apps.

+8

hoppscotch

hoppscotch/hoppscotch · ★ 80.6K

Hoppscotch is an open-source API development ecosystem for building, testing and debugging REST, GraphQL, WebSocket, MQTT, Server-Sent Events and Socket.IO APIs, positioned as an open alternative to Postman or Insomnia.

The all-time top

9 projects · by stars

  1. #1 · hoppscotch/hoppscotch

    hoppscotch

    Hoppscotch is an open-source API development ecosystem for building, testing and debugging REST, GraphQL, WebSocket, MQTT, Server-Sent Events and Socket.IO APIs, positioned as an open alternative to Postman or Insomnia.

    80.6K
  2. #2 · usebruno/bruno

    bruno

    Bruno is an open-source API client for exploring and testing REST, GraphQL, and other APIs, built as a lightweight alternative to Postman and Insomnia.

    47.7K
  3. #3 · Kong/insomnia

    insomnia

    Insomnia is an open-source, cross-platform API client for debugging, designing, testing and mocking APIs over GraphQL, REST, WebSockets, SSE and gRPC.

    40K
  1. 4

    cli

    38.6Khttpie/cli · Python

    HTTPie is a command-line HTTP client built to make interacting with APIs and web servers from the terminal as human-friendly as possible. It ships two commands, http and https, for sending arbitrary HTTP requests with simple syntax and colorized, formatted output.

  2. 5

    Mobile-Security-Framework-MobSF

    22KMobSF/Mobile-Security-Framework-MobSF · JavaScript

    MobSF is an automated, all-in-one mobile security framework: it performs static and dynamic analysis, penetration testing, malware analysis and privacy analysis on Android, iOS and Windows Mobile apps.

  3. 6

    hurl

    19.3KOrange-OpenSource/hurl · Rust

    Hurl is a command line tool that runs HTTP requests written in a simple plain text format. It can chain requests, capture values and evaluate queries on response headers and body — for fetching data as well as testing HTTP sessions.

  4. 7

    keploy

    18.6Kkeploy/keploy · Go

    Keploy is an open-source tool that auto-generates API and integration tests from real traffic: it records your API calls, database queries and streaming events, then replays them as tests.

  5. 8

    metersphere

    13.6Kmetersphere/metersphere · Java

    MeterSphere is an open-source continuous testing platform with a built-in AI assistant, designed to make software testing simpler and faster so it stops being the bottleneck of continuous delivery.

  6. 9

    agentic-playwright

    233idavidov13/agentic-playwright · Python

    A production-grade Playwright + TypeScript scaffold for end-to-end and API testing that comes with AI rules (a Constitution and 17 skills) baked in, so Claude Code, Cursor, and GitHub Copilot automatically write tests that follow your team's patterns.

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