# fetchurl

> Content-addressable URL caching for CI and package managers. Clients verify hashes; servers are untrusted.

## Pages

- [Content-addressable URL caching for CI and package managers](https://fetchurl.github.io/): Content-addressable URL caching for CI and package managers. Clients verify hashes; servers are untrusted.
- [Documentation](https://fetchurl.github.io/docs/): fetchurl documentation index.
- [Getting started](https://fetchurl.github.io/docs/getting-started/): Run a cache server and point clients with FETCHURL_SERVER.
- [Protocol](https://fetchurl.github.io/docs/protocol/): Request shape, environment variables, trust model, and errors.
- [SDKs](https://fetchurl.github.io/docs/sdks/): Language clients for JavaScript, Python, Rust, and Java.
- [Server](https://fetchurl.github.io/docs/server/): Reference Go server, CLI, and container image.