Integration

An open-source API management platform for controlling access, lifecycle, and analytics of your APIs.

A complete platform for building, integrating, and exposing digital services as managed APIs in cloud, on-premise, and hybrid architectures.

An open-source API design studio for creating and editing OpenAPI and AsyncAPI specifications.

A language-agnostic command-line tool for validating API documentation against backend implementation.

A visual editor for creating and editing OpenAPI 3.0 definitions, running entirely client-side in the browser.

A utility for comparing two OpenAPI 3.x specifications and rendering differences in HTML, Markdown, Asciidoc, JSON, or plain text.

Automatically generates API client libraries, server stubs, and documentation from OpenAPI specifications.

A customizable style validator to ensure OpenAPI specifications adhere to organizational standards.

A flexible JSON/YAML linter for creating automated style guides, with baked-in support for OpenAPI, AsyncAPI, and Arazzo.

A browser-based editor for designing, editing, and visualizing OpenAPI, AsyncAPI, and API Design Systems specifications.

A minimalistic, simple-to-use linter for OpenAPI 2 and 3 specifications that checks compliance with RESTful guidelines.

A themed documentation generator, server, and API explorer for OpenAPI (Swagger) specifications.

A web component that generates a responsive UI explorer and console from OpenAPI specifications.

A lightweight WebComponent for rendering interactive OpenAPI/Swagger documentation with built-in API testing capabilities.

Generate beautiful, responsive API documentation from OpenAPI/Swagger definitions.

A static API documentation generator that creates beautiful, responsive documentation sites from Markdown files.

Build beautiful, interactive API documentation with embeddable React or Web Components, powered by OpenAPI and Markdown.

Dynamically generates interactive API documentation from OpenAPI/Swagger specifications.

A Node.js library that autogenerates static, customizable documentation for GraphQL APIs from live endpoints, SDL files, or introspection results.

An open-source, highly customizable framework for building interactive API documentation from OpenAPI schemas.

A high-performance, extensible, cloud-native API gateway built with Go, featuring plugin-based architecture and enterprise-grade management.

A dynamic, real-time, high-performance cloud-native API gateway and AI gateway for traffic management and service orchestration.

A Java-native, high-performance API gateway for microservices, offering service proxy, protocol conversion, and comprehensive API governance.

An open-source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway using Gateway API resources.

An Envoy-powered Kubernetes-native API gateway and ingress controller with function-level routing for hybrid applications.

An ultra-high performance, stateless, declarative API Gateway written in Go for microservices and secure communications.

A .NET API Gateway for microservices architectures, providing routing, authentication, and load balancing.

A modern HTTP reverse proxy and load balancer that automatically configures itself for microservices.

A cloud-native, open source API gateway written in Go, supporting REST, GraphQL, TCP, and gRPC protocols.

A desktop application for testing, debugging, and interacting with REST APIs and web services.

An open-source, offline-first API client that stores collections as files for Git-based collaboration.

A command-line tool and library for transferring data with URLs, supporting over 25 protocols including HTTP, FTP, SSH, and WebSocket.

A curl frontend with HTTPie's user-friendly interface, combining curl's power with intuitive syntax and formatting.

A command-line tool that provides an interactive web UI for testing and debugging gRPC servers, similar to Postman for gRPC APIs.

A command-line tool for interacting with gRPC servers, similar to curl but for gRPC.

A modern, user-friendly command-line HTTP client for testing, debugging, and interacting with APIs.

An open-source API development ecosystem for testing HTTP, WebSocket, GraphQL, and other APIs with real-time collaboration.

An open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE, gRPC, and other HTTP-compatible protocols.

A terminal-based HTTP client for keyboard-centric API testing and development workflows.

A local-first API client and HTTP interceptor for building, testing, and mocking APIs directly in your browser or desktop.

A tiny shell script wrapper for curl that provides a simple command-line interface for interacting with REST services in pipelines.

A free and open-source cross-platform functional testing solution for APIs and web services.

A cross-platform desktop GUI client for interacting with gRPC services, supporting all streaming types and automatic proto parsing.

A friendly and fast command-line HTTP client with an intuitive syntax, designed as a high-performance alternative to HTTPie.

An open-source, self-hosted, collaborative API development environment for teams to securely manage and share API collections.

A fast, privacy-first desktop API client for REST, GraphQL, WebSockets, SSE, and gRPC.

A universal JMS client for browsing, posting, and managing messages across multiple queue providers with REST API support.

A lightweight command-line tool for producing, consuming, and inspecting Apache Kafka messages, similar to netcat for Kafka.

A Windows desktop tool for connecting to and administering Azure Service Bus messaging entities with advanced testing and management features.

A lightweight open-source API simulation tool for creating realistic mocks of dependent services during development and testing.

A scriptable, multipurpose mock server for REST APIs, OpenAPI, SOAP, gRPC, Salesforce and HBase APIs.

A Kubernetes-native open-source platform for API mocking and contract testing from OpenAPI, AsyncAPI, gRPC, GraphQL, and Postman assets.

A free service to generate custom HTTP endpoints for testing and viewing request/response logs, with OpenAPI support.

The easiest and quickest way to design and run mock APIs locally, with desktop, CLI, and cloud options.

MockServer is an HTTP(S) mock server and proxy for mocking, recording, and debugging integrations with external systems.

A simple tool to generate custom HTTP responses for testing web services and mocking backend APIs.

Open-source API mocking and contract testing server for OpenAPI and Postman specifications.

A flexible open-source tool for mocking HTTP services to create stable test and development environments.

An open-source Java application for load testing and performance measurement of web services, databases, and various network protocols.

An open-source load testing platform for modern performance engineering with code-first test definition and asynchronous architecture.

A command line tool to run and test HTTP requests using a simple plain text format.

Open-source API and integration testing platform that auto-generates tests and mocks from real user traffic using eBPF.

A command-line tool for load testing and benchmarking gRPC services with support for various schedules and output formats.

A modern load testing tool for developers, using Go and JavaScript to test performance like unit tests.

A unified open-source framework combining API testing, mocks, performance testing, and UI automation with a simple syntax.

A REST API testing and microbenchmarking tool that uses YAML/JSON config files, requiring no code to write tests.

A Java DSL for simplifying testing and validation of REST APIs with a fluent, Groovy-like syntax.

A stateful REST API fuzzing tool that automatically tests cloud services to find security and reliability bugs.

Automatically generate thousands of test cases from OpenAPI or GraphQL schemas to find edge-case API bugs.

Automation-friendly framework for continuous testing that wraps JMeter, Gatling, Locust.io, and Selenium WebDriver.