@carbonvoice/openclaw-extension

OpenClaw channel plugin for Carbon Voice: PAT websocket plus optional webhooks, with POST /v3/messages/recent catch-up after disconnects; text replies (voice/TTS stays on the Carbon Voice side).

npm package name (install spec): @carbonvoice/openclaw-extension. Plugin id in OpenClaw remains carbonvoice (openclaw.plugin.json / openclaw.channel.id).

Docs: https://docs.openclaw.ai/channels/carbonvoice
Plugin system: https://docs.openclaw.ai/plugin

Bundled vs installable

Carbon Voice ships bundled with the main openclaw npm package. Enable it with:

openclaw plugins enable carbonvoice

To try a different copy from disk (for example a patched checkout), install from a path or tarball; that copy shadows the bundled plugin when it uses the same id. See https://docs.openclaw.ai/plugin (discovery and precedence).

Install (local path)

From the OpenClaw repo root:

openclaw plugins install ./extensions/carbonvoice

Restart the Gateway after install.

Dev link (no copy)

openclaw plugins install --link ./extensions/carbonvoice

Tarball (npm / ClawHub)

Published plugins must ship compiled dist/*.js files. Plain npm pack inside extensions/carbonvoice only packs TypeScript sources and openclaw plugins install will reject the tarball.

From the OpenClaw repository root (after pnpm install):

node scripts/lib/plugin-npm-runtime-build.mjs extensions/carbonvoice
# --pack-destination must already exist (npm does not mkdir for you)
mkdir -p ./dist-pack
node scripts/lib/plugin-npm-package-manifest.mjs --run extensions/carbonvoice -- npm pack --pack-destination ./dist-pack

Example using /tmp only:

node scripts/lib/plugin-npm-package-manifest.mjs --run extensions/carbonvoice -- npm pack --pack-destination /tmp

That writes carbonvoice-openclaw-extension-<version>.tgz (npm’s filename for scoped packages) with dist/, openclaw.runtimeExtensions, and openclaw.runtimeSetupEntry set for the installer.

On the target host:

openclaw plugins install ./carbonvoice-openclaw-extension-<version>.tgz
# or
openclaw plugins install npm-pack:/tmp/carbonvoice-openclaw-extension-<version>.tgz

Publish to npm (@carbonvoice org)

This package is scoped to @carbonvoice on npm (publishConfig.access: "public"). It is not part of OpenClaw’s automated @openclaw/* plugin npm matrix (openclaw.release.publishToNpm is false here so repo release scripts keep enforcing the @openclaw publisher contract).

One-time npm setup

1. Create the carbonvoice organization on npmjs.com (if it does not exist) and invite maintainers.
2. Create a granular Automation or Publish token with permission to publish that org’s packages (or use npm login with a user who is an org member).

Publish from the OpenClaw repo root (after pnpm install):

export NODE_AUTH_TOKEN="npm_..."   # token with publish rights to @carbonvoice
# Local / non-GitHub-OIDC publishes cannot use npm provenance; disable for this shell:
export OPENCLAW_NPM_PUBLISH_PROVENANCE=0

bash scripts/plugin-npm-publish.sh --pack-dry-run extensions/carbonvoice
bash scripts/plugin-npm-publish.sh --publish extensions/carbonvoice

If you publish with trusted publishing (no NODE_AUTH_TOKEN / NPM_TOKEN) and the script refuses because beta dist-tag mirroring needs a token, either export a token as above or set OPENCLAW_NPM_SKIP_DIST_TAG_MIRROR=1 (the extensions/carbonvoice/publish.sh wrapper sets this by default).

The script runs the runtime build, applies the same package.json overlay as npm pack, then npm publish --access public. First publish of a scoped public package must stay public (already set in publishConfig).

Install for users (after publish):

openclaw plugins install npm:@carbonvoice/openclaw-extension
openclaw plugins install npm:@carbonvoice/openclaw-extension@2026.3.14

Publish to ClawHub

ClawHub is optional; use the ClawHub CLI (clawhub package publish …) with an owner whose scope matches @carbonvoice, or publish the tarball produced by clawhub package pack after the same dist/ build as above. See Publishing on ClawHub.

Install spec (after a ClawHub release exists):

openclaw plugins install clawhub:@carbonvoice/openclaw-extension

Peer dependency: openclaw must satisfy peerDependencies.openclaw in this package’s package.json.

Dependencies

The plugin install runs npm install --omit=dev in the extension directory. Ensure socket.io-client resolves (declared in dependencies).

Config

Channel config lives under channels.carbonvoice (multi-account under accounts.<accountId>).

Credential: set the AGENT_PAT environment variable to your Carbon Voice agent personal access token (cv_pat_...) for the default account, or set apiKey on the account in config (same value). On startup, OpenClaw calls GET /whoami, opens the realtime websocket, and runs recents catch-up on connect. If you set publicWebhookBaseUrl, it also subscribes webhooks and registers the HTTP route. Inbound filters exclude the PAT user’s own messages; optional creatorId limits inbound to that user only.

Typical fields per account:

• creatorId (optional) — Carbon Voice user id; when set, only messages from this user are delivered (in addition to excluding the PAT user).
• baseUrl — API base (default https://api.carbonvoice.app).
• publicWebhookBaseUrl (optional) — public origin of your OpenClaw gateway for Carbon Voice webhooks. Omit for PAT-only websocket mode.
• webhookPath — path on the gateway when using webhooks (default /openclaw/carbonvoice/webhook when publicWebhookBaseUrl is set).

Example (PAT-only via env):

export AGENT_PAT="cv_pat_..."

{
  channels: {
    carbonvoice: {
      accounts: {
        default: {
          enabled: true,
          // optional: "publicWebhookBaseUrl": "https://gateway.example.com",
          // optional: "creatorId": "YOUR_USER_GUID",
        },
      },
    },
  },
}

Use openclaw onboard or channel setup for interactive configuration where available.