@publicdomainrelay/atlibs

atlibs runs WebAssembly modules published as atproto records, in a browser page or a Node server. A module plans XRPC calls; the host makes them with the user's session. ESM, no build step, no dependencies. Docs, the Rust host and the atlibs CLI: https://knotless.dev/johnandersen777.bsky.social/atlibs

npm i @publicdomainrelay/atlibs

import { localModule, runModule } from '@publicdomainrelay/atlibs/run-module/index.js'

A page maps the same paths through its import map:

<script type="importmap">
{
	"imports": {
		"@atproto/oauth-client-browser": "https://esm.sh/@atproto/oauth-client-browser@0.5.14",
		"atlibs/": "https://cdn.jsdelivr.net/npm/@publicdomainrelay/atlibs@0.5.0/src/"
	}
}
</script>

Entry points

Every src/<name>/index.js is @publicdomainrelay/atlibs/<name>/index.js.

• Browser and Node: run-module, compose, mcp, oauth, attest, didkey, encoding, cubit, component, plugin-context
• Node only: server (node:sqlite, node:fs, node:worker_threads; its CLI is server/cli.mjs), oauth-server (needs the optional peers @atproto/oauth-client-node and @atproto/jwk-jose), serviceauth (node:crypto)

Node 25 or later (Uint8Array.prototype.toBase64); browsers: Chrome 140, Firefox 133, Safari 18.2.

Public domain (Unlicense).