Postman is a popular API development platform for designing, testing, and documenting APIs. Looking for other API Management and Gateway solutions? Below are 20 noteworthy alternatives.
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Full‑featured API management platform with analytics, security policies, and developer portal.
Open‑source API gateway and microservices management layer, extensible via plugins and Kong Enterprise.
Fully managed service to create, publish, secure, and monitor APIs at any scale on AWS.
Modern REST, GraphQL, and gRPC client with powerful debugging, environment variables, and plugin ecosystem.
Open‑source, web‑based API request builder supporting REST, GraphQL, WebSocket, and SSE with a clean UI.
Native macOS API client offering advanced testing, code generation, and visual request composition.
Comprehensive functional testing tool for SOAP and REST APIs, with powerful assertions and data‑driven testing.
Microsoft’s turnkey API gateway with developer portal, policies, analytics, and hybrid deployment options.
Lightweight, open‑source API gateway with a powerful dashboard, analytics, and middleware support.
Enterprise‑grade integration and API management suite with design, runtime, and analytics capabilities.
Comprehensive API lifecycle management solution with security, analytics, and developer portal.
Open‑source API management platform offering gateway, analytics, and developer portal in a modular architecture.
Full‑stack open‑source API management solution with governance, security, and monetization features.
Design‑first API platform with visual modeling, mock servers, and integrated documentation.
Open‑source API backend that auto‑generates REST APIs from databases, files, and external services.
Enterprise API management suite with governance, security, and analytics for hybrid environments.
High‑performance open‑source API gateway written in Go, focused on low latency and scalability.
API gateway built on NGINX, providing traffic management, security, and observability.
Security‑first API management suite offering automated vulnerability scanning and policy enforcement.