Boop

Boop is a tiny, self-hosted notification inbox for developers. Applications submit events to a Go server using a project API key; the server redacts configured sensitive keys, stores the events in SQLite, and sends push notifications directly to Apple's APNs. The notification contains the title, body, and event ID, while the iOS app fetches the full event from the server using a device credential.

The bundled web UI manages projects, devices, pairing, retention, silences, and event grouping. A one-time pairing token and QR code connect the iOS app, which must be built and signed by the operator. Events support levels, structured error data, up to three URL actions, fingerprints for grouping repeated occurrences, and a Sentry-compatible ingest endpoint. Boop also exposes an optional read-only, Streamable HTTP MCP endpoint for AI agents to query projects and events; it contains no LLM.

Distribution consists of a Go binary with an embedded Svelte web UI, a Docker deployment, and the iOS app source. The project uses one SQLite database file, has no hosted relay, account system, or telemetry, and is released under the MIT license.