SDKs & tools

You build on Fabric through the official TypeScript SDK. The CLI complements it by generating typed keys for your message definitions.

The TypeScript SDK is the supported client today. SDKs for more languages will follow once the API reaches a stable release.

Node.js SDKInstall, configure, resources, retries, and typed errors.

CLIGenerate and check a typed catalog of your definition keys.

At a glance

Tool	Package	Use it for
SDK	@fabric-messaging/sdk	All server-side integration. Node.js 22+, ESM.
CLI	@fabric-messaging/cli	Typed definition catalog, drift checks in CI.

Both tools are server-side

The SDK and the CLI both carry a secret key. Keep them out of browsers, public repositories, and logs.