Customer.io

Behavioural messaging workflows and segments.

Connect Customer.io All toolkits

Auth: API keyCatalog preview

Tools

What your agent can do with Customer.io

CUSTOMER_IO_SEARCH

Search across Customer.io records and content.

CUSTOMER_IO_CREATE

Create a new item in Customer.io with validated fields.

CUSTOMER_IO_UPDATE

Update an existing Customer.io item by id.

CUSTOMER_IO_LIST

List and filter Customer.io items with pagination.

Setup

Option A: MCP (no code)

Sign up and connect Customer.io 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": "CUSTOMER_IO_CREATE",
    "external_user_id": "user_123",
    "arguments": { ... }
  }'

Put Customer.io to work

Get started for free

See use cases →