Fastmail

Mail, contacts, and calendars over JMAP.

Connect Fastmail All toolkits

Auth: API keyCatalog preview

Tools

What your agent can do with Fastmail

FASTMAIL_SEARCH

Search across Fastmail records and content.

FASTMAIL_CREATE

Create a new item in Fastmail with validated fields.

FASTMAIL_UPDATE

Update an existing Fastmail item by id.

FASTMAIL_LIST

List and filter Fastmail items with pagination.

Setup

Option A: MCP (no code)

Sign up and connect Fastmail from your dashboard.
Copy your gateway URL: mcp.spinrun.ai/you
Paste it into Claude, Cursor, or any MCP client.

Option B: API

curl -X POST https://api.spinrun.ai/v1/tools/execute \
  -H "Authorization: Bearer $API_KEY" \
  -d '{
    "tool_slug": "FASTMAIL_CREATE",
    "external_user_id": "user_123",
    "arguments": { ... }
  }'

Put Fastmail to work

Get started for free

See use cases →