Resend

Developer-first email API for transactional sending.

Connect Resend All toolkits

Auth: API keyCatalog preview

Tools

What your agent can do with Resend

RESEND_SEARCH

Search across Resend records and content.

RESEND_CREATE

Create a new item in Resend with validated fields.

RESEND_UPDATE

Update an existing Resend item by id.

RESEND_LIST

List and filter Resend items with pagination.

Setup

Option A: MCP (no code)

Sign up and connect Resend 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": "RESEND_CREATE",
    "external_user_id": "user_123",
    "arguments": { ... }
  }'

Put Resend to work

Get started for free

See use cases →