PyPI
schemathesis/schemathesis
Catch API bugs before your users do
MITSep 16, 2026 · metrics 2.10.0
All tags
Catalogue tag
#api-testing
Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.
51 records
Maven
karatelabs/karate
Test Automation Made Simple
MITAug 28, 2026 · metrics 2.10.0
Go
keploy/keploy
Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.
Apache-2.0Sep 16, 2026 · metrics 2.10.0
npm
stoplightio/prism
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
Apache-2.0Aug 27, 2026 · metrics 2.10.0
npm
TestSprite/testsprite-cli
Official TestSprite CLI — AI-powered automated testing from your terminal
Apache-2.0Sep 12, 2026 · metrics 2.10.0
npm
hoppscotch/hoppscotch
Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia
MITSep 16, 2026 · metrics 2.10.0
npm
usebruno/bruno
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
MITSep 16, 2026 · metrics 2.10.0
crates.io · PyPI
Orange-OpenSource/hurl
Hurl, run and test HTTP requests with plain text.
Apache-2.0Oct 20, 2026 · metrics 2.10.0
NuGet
dotnet/dev-proxy
Simulate API failures, throttling, and chaos — all from your command line.
MITSep 16, 2026 · metrics 2.10.0
Maven · npm
metersphere/metersphere
MeterSphere 是新一代的开源持续测试工具，内置 AI 助手，让软件测试工作更简单、更高效，不再成为持续交付的瓶颈。
Custom licenseAug 27, 2026 · metrics 2.10.0
Go
k1LoW/runn
runn is a package/tool for running operations following a scenario.
MITSep 13, 2026 · metrics 2.10.0
Packagist · npm
php-vcr/php-vcr
Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests.
MITSep 8, 2026 · metrics 2.10.0
crates.io · Maven · npm
SaaSy-Solutions/mockforge
Open-source API mock server for REST, gRPC, GraphQL, WebSocket, Kafka, MQTT and more
Custom licenseOct 21, 2026 · metrics 2.10.0
npm
postmanlabs/postman-mcp-server
Postman MCP Server — connect AI agents (Claude Code, Cursor, VS Code Copilot, Gemini CLI) to your Postman collections, OpenAPI specs, and environments via Model Context Protocol (MCP)
Apache-2.0Sep 9, 2026 · metrics 2.10.0
npm · Go
marle3003/mokapi
Your API mocking tool for OpenAPI and AsyncAPI using Go and JavaScript - https://mokapi.io
MITSep 6, 2026 · metrics 2.10.0
Packagist · npm
studio-design/gesso
Gesso — OpenAPI 3.0/3.1/3.2 contract testing for PHP. Framework-independent core with Laravel, Symfony, Pest, and PSR-7 adapters. PHPUnit coverage, request/response validation, fuzzing, and drift detection.
MITSep 6, 2026 · metrics 2.10.0
npm
jaredwray/mockhttp
A simple HTTP server that can be used to mock HTTP responses for testing purposes. Inspired by httpbin and built using nodejs and fastify with the idea of running it via https://mockhttp.org, via docker jaredwray/mockhttp, or nodejs npm install jaredwray/mockhttp.
MITSep 14, 2026 · metrics 2.10.0
Packagist · npm
sunchayn/nimbus
Nimbus automatically analyzes your routes and validation rules to build interactive request schemas and a native interface for testing and exploring your APIs
MITOct 21, 2026 · metrics 2.10.0
NuGet · npm · RubyGems
Kuestenlogik/Bowire
Multi-protocol API workbench for .NET — discover, invoke, record, mock, replay across gRPC, REST, GraphQL, MQTT, SignalR, WebSocket, SSE, MCP, OData, Socket.IO, and more... including your custom protocol.
Apache-2.0Sep 29, 2026 · metrics 2.10.0
npm
ServeRest/ServeRest
APIs REST simulando loja virtual para servir de estudo de testes de API de forma manual ou automatizada
No licenseSep 20, 2026 · metrics 2.10.0
npm
grafana/openapi-to-k6
A CLI tool to convert an OpenAPI schema to a TypeScript client to use with k6.
AGPL-3.0Sep 14, 2026 · metrics 2.10.0
Go
unkn0wn-root/resterm
Terminal API client for HTTP, GraphQL and gRPC. Plain .http files you can diff and version, with workflows, mocks, profiling, tracing, OpenAPI import, SSH tunnels, Kubernetes port-forwards, WebSocket, SSE and a CLI runner.
Apache-2.0Sep 13, 2026 · metrics 2.10.0
crates.io
ducaale/xh
Friendly and fast tool for sending HTTP requests
MITSep 18, 2026 · metrics 2.10.0
Go
bmcszk/go-restclient
Go library for executing HTTP requests from .http files with JetBrains/VS Code compatibility. Same files for manual testing and automated E2E tests.
MITOct 20, 2026 · metrics 2.10.0
Maven
keploy/java-sdk
Official Keploy Java SDK 🔴
Apache-2.0Sep 29, 2026 · metrics 2.10.0
Go
mockzilla/mockzilla
Open-source OpenAPI mock server with cloud hosting and local modes for development, testing, and CI. Generates realistic API responses from specs with latency simulation, error injection, proxy fallback, and request validation. Validated against 2,200+ real-world OpenAPI specs.
MITSep 19, 2026 · metrics 2.10.0
PyPI
golikovichev/secure-log2test
Deterministic pytest suite generator from Kibana API logs
MITSep 18, 2026 · metrics 2.10.0
NuGet
Avanade/UnitTestEx
UnitTestEx provides .NET testing extensions to the most popular testing frameworks (MSTest, NUnit and Xunit) specifically to improve the testing experience with ASP.NET controller, and Azure Function, execution including underlying HttpClientFactory mocking.
MITOct 21, 2026 · metrics 2.10.0
Go · npm
Dhi13man/bombardment-runner
A lightweight automation tool intended to pick up data, transform it using a set of rules and then send it to a target system.
MITSep 19, 2026 · metrics 2.10.0
npm
glubean/glubean
Workflow verification platform — write API tests in TypeScript, run locally or in CI, let AI agents write and repair them
Apache-2.0Sep 13, 2026 · metrics 2.10.0