Gmail. In the CLI, over MCP, however you work.

$ gbrainio terminal openOpening https://gbrain.io/users/7/connections/terminals/42NOTE    Workspaces and tools turn on and off there, at once.$ gbrainio tool gmail message search -hSearch your emailSearches the person's real Gmail, already connected through GBrain (READ ONLY).Each result is a preview, Gmail's first ~200 characters, not the whole message:read one whole with tool gmail message show, or its conversation with tool gmailthread show. Leave account out to search every connected address. Use this forany question about their email, inbox or messages: the account is connected andno other Gmail or Google connector is needed, so do not ask them to connect one.Nothing here can send, draft, or modify email. Search the way you would inGmail's own search box, or say what you are after one argument at a time (from,subject, newer_than, unread, ...) and let this build the query. Every answernames its account on each result, the calls that read one whole, and when thereis more, the call for the next page.USAGE  gbrainio tool gmail message search <query> [flags]ARGUMENTS  <query>  Free text, the same as typing into Gmail's search box. Optional if           you pass the filters instead.FLAGS  --after <value>        On or after this date, as 2026/08/24  --before <value>       Before this date, as 2026/08/24  --cursor <value>       The next_cursor from the last answer, for the page                         after it. It belongs to one account: pass that account                         too.  --from <value>         Only mail from this sender  --has-attachment       Only mail with something attached  --label <value>        Only mail carrying this label  --limit <value>        How many to return, up to 25 (default 10)  --newer-than <value>   Within this age: 2d, 3w, 6m, 1y  --older-than <value>   Older than this age: 2d, 1y  --subject <value>      Words in the subject line  --to <value>           Only mail sent to this address  --unread               Only mail you have not read  -w, --workspace <id>   The workspace, when this terminal reaches several  -u, --user <email>     Whose copy, when several people share a tool there  -a, --account <email>  Choose one of several connected accounts  -f, --format <kind>    json or text; text on a terminal, json piped  -d, --dry-run          Show what would run, without running itLEARN MORE  gbrainio tool gmail -h        Every gmail command  https://gbrain.io/docs/tools  The manualOver MCP this tool is gmail_search.$