
Amazon API Gateway
Fully managed service to create, publish, and secure APIs at any scale for backend access
Discover top open-source software, updated regularly with real-world adoption signals.

Lightweight Go‑based API gateway with granular control and analytics
Janus delivers a single‑binary, high‑performance API gateway that offers hot‑reloading, rate limiting, circuit breaking, and built‑in support for JWT, OAuth2, and OpenTracing, all configurable via a RESTful management API.

When teams consider Janus, these hosted platforms usually appear on the same shortlist.

Fully managed service to create, publish, and secure APIs at any scale for backend access

Fully managed multicloud API management service for publishing, securing, and monitoring APIs across environments

API management platform to publish, secure, and analyze APIs
Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.
Secure public API for mobile app
Expose backend services with JWT authentication, rate limiting per user, and real‑time tracing to monitor performance.
Internal microservice mesh traffic control
Apply circuit breakers and retries per service, hot‑reload routing rules without downtime.
Rapid prototyping of a SaaS product
Deploy Janus via Docker, configure CORS and OAuth2 in minutes, allowing developers to focus on core features.
Analytics‑driven API monitoring
Collect detailed request metrics and error logs through built‑in analytics for continuous improvement.
Janus provides pre‑compiled binaries for Linux (amd64, i386, arm64), macOS (amd64, i386) and Windows (amd64, i386), and can also be run from its official Docker image.
Janus watches its configuration files and applies changes on the fly, enabling hot‑reloading of routes, auth settings, and rate‑limit rules.
Janus includes native support for JWT, OAuth 2.0, and Basic Auth, and can be extended via custom middleware.
Yes, it supports OpenTracing and works with Google Cloud Trace and Jaeger for distributed tracing.
Janus exposes a RESTful management API that lets you create, update, and delete users, keys, and API configurations from scripts or CI pipelines.
Project at a glance
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