h3.dev valid

crossws

elegant, typed, and simple toolkit to implement cross-platform WebSocket servers.

Authority: 45 reach 0 · trust 5 · quality 25 · freshness 15
Tier: listed
llms.txt: https://crossws.h3.dev/llms.txt
llms-full.txt: https://crossws.h3.dev/llms-full.txt
Sections: 1
Links: 17
Size: 1963 bytes
Country: United States Hosting inference
Hosting country: United States Hosting inference
Country evidence: No published address evidence collected yet
For agents: Documentation: developer or product docs worth reading, nothing to call
First seen: 2026-10-27T09:54:09.068Z
Last checked: 2026-10-27T09:54:09.699Z
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Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-27T09:54:09.073Z. Cached copy · Source on h3.dev

# crossws

> elegant, typed, and simple toolkit to implement cross-platform WebSocket servers.

## Docs

- [Guide](https://crossws.h3.dev/raw/guide.md): crossws provides a cross-platform toolkit to define well-typed WebSocket apps that can then be integrated into various WebSocket servers using built-in adapters.
- [Hooks](https://crossws.h3.dev/raw/guide/hooks.md): Using hooks, you can define a WebSocket server that works across runtimes with the same syntax.
- [Peer](https://crossws.h3.dev/raw/guide/peer.md): Peer object allows easily interacting with connected clients.
- [Message](https://crossws.h3.dev/raw/guide/message.md)
- [Pub / Sub](https://crossws.h3.dev/raw/guide/pubsub.md)
- [Sync Backplane](https://crossws.h3.dev/raw/guide/sync.md)
- [Resolver API](https://crossws.h3.dev/raw/guide/resolver.md)
- [WebSocket Proxy](https://crossws.h3.dev/raw/guide/proxy.md): Forward incoming WebSocket connections to an upstream ws:// or wss:// target.
- [WebSocket Client](https://crossws.h3.dev/raw/guide/client.md): A per-runtime WebSocket client for dialing upstream servers with one consistent signature.
- [Adapters](https://crossws.h3.dev/raw/adapters.md)
- [Bun](https://crossws.h3.dev/raw/adapters/bun.md): Manually integrate crossws with Bun.
- [Bunny](https://crossws.h3.dev/raw/adapters/bunny.md): Manually integrate crossws with Bunny.net Edge Scripting.
- [Cloudflare](https://crossws.h3.dev/raw/adapters/cloudflare.md): Integrate crossws with Cloudflare Workers and Durable Objects.
- [Deno](https://crossws.h3.dev/raw/adapters/deno.md): Manually integrate crossws with Deno.
- [Node.js](https://crossws.h3.dev/raw/adapters/node.md): Integrate crossws with Node.js (manually) or uWebSockets.js
- [SSE](https://crossws.h3.dev/raw/adapters/sse.md): Integrate crossws with server-sent events and fetch-api.
- [Vercel](https://crossws.h3.dev/raw/adapters/vercel.draft.md): Integrate crossws with Vercel Functions that expose WebSocket upgrades.

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