> ## Documentation Index
> Fetch the complete documentation index at: https://docs.duckbrain.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# Gmail & Calendar

> Gmail & Calendar → DuckBrain ingest (Planned)

**Status:** Planned

The SaaS lane (Lane B): **provider-native exports for backfill, platform-proxied APIs for incremental sync.**

* **Backfill:** Google Takeout mbox parsed locally — free, offline, full fidelity. Never an API crawl.
* **Incremental:** Gmail `history.list` deltas through Pipedream Connect or Composio behind one `SaasConnector` interface (proxy-first; credentials never touch DuckBrain).

Choice rule: Pipedream (custom OAuth client) when exportable tokens matter; Composio for toolkit breadth and MCP-native agent parity. Both can share one consent via Composio's bearer-token import.


## Related topics

- [Sources Overview](/sources/overview.md)
- [ingest](/commands/ingest.md)