Need help with zio-web?
Click the “chat” button below for chat support from the developer who created it, or find similar developers for support.

About the developer

170 Stars 61 Forks Apache License 2.0 57 Commits 21 Opened issues


ZIO-powered cloud services via HTTP and other protocols

Services available


Need anything else?

Contributors list


| CI | Release | Issues | Discord | | --- | --- | --- | --- | | Build Status | Release Artifacts | Average time to resolve an issue | badge-discord |

ZIO Web supports the features you need to be productive:

  • Endpoints. Define reliable and scalable endpoints concisely, type-safely, and composably.
  • Protocol-Agnostic. Deploy endpoints to any supported protocol, including HTTP and gRPC.
  • Stream-friendly. Handle requests and responses that are too big to fit in memory at once.
    • WebSockets
  • Introspection-friendly
    • Documentation. Generate documentation that is automatically in-sync with the endpoints.
    • Client. Interact with an endpoint type-safely from Scala without writing any code.
  • Middleware-friendly. Middleware is type-safe and compositional and can include built-in middleware or third-party middleware, or combinations.
    • Metrics/Monitoring. Built-in integration with ZIO ZMX.
    • Rate-limiting. Customizable rate-limiting with DDOS protection.
    • Logging. Request/response logging in Common Log format.
    • Via third-party libraries, pluggable authentication, authorization, persistence, caching, session management.
  • High-performance. Fastest functional Scala library.

Compared to the competition, ZIO Web features:

  • ZIO native
  • Beginner-friendly
    • Minimal / no type classes, implicits, or higher-kinded types
    • Highly discoverable API
    • Good type inference
    • Minimal jargon
  • Expert-friendly
    • Type-safe
    • No magic, edge cases, or surprises
  • GraalVM-ready
  • Fast performance
  • Composable


ZIO Web supports the following protocols out-of-the-box:

  • HTTP
  • WebSockets
  • gRPC
  • Avro


Add in your

libraryDependencies += "dev.zio" %% "zio-http-core" % ""

We use cookies. If you continue to browse the site, you agree to the use of cookies. For more information on our use of cookies please see our Privacy Policy.