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How to use Customer.io with Claude Code

You want Customer.io inside Claude Code so it can triage customer lifecycle activity, update customer profiles from support outcomes, send a transactional customer update, and measure and trigger a lifecycle campaign — without you copy-pasting between tabs. Here is the whole setup, once.

Create your Customer.io gateway

The gateway is the thing Claude Code connects to, and it is where you decide which Customer.io tools an agent may use. You create it once and every client reuses it.

  1. Create an Arcade account

    Sign up and open the dashboard. The free tier is enough to follow this through.

  2. Create an MCP Gateway and select your Customer.io tools

    In the dashboard, create a gateway and pick the Customer.io tools you want to expose. The gateway is what your client connects to, and it is where tool access is decided.

  3. Copy your gateway URL

    Every client below needs it.

    https://api.arcade.dev/mcp/<YOUR-GATEWAY-SLUG>

Create a Customer.io gateway Opens the gateway builder in your Arcade dashboard.

Connect the gateway to Claude Code

  1. Add the gateway as a remote HTTP MCP server

    claude mcp add arcade --transport http "<YOUR_ARCADE_GATEWAY_URL>"

  2. Verify it was added

    claude mcp get arcade
    claude mcp list

  3. Try it out

    Open Claude Code in your project and ask it to use one of your Customer.io tools.

Full Claude Code guide in the docs steps verified 2026-08-13

Get started with these Customer.io prompts

Claude Code can now act on your Customer.io account. Click a prompt to copy it.

Use scoped credentials and tool permissions to control which Customer.io actions an agent can take. Pair it with Contextual Access policies to require approval before an agent triggers a broadcast, sends transactional email, or deletes a person record.

Ready to actually ship your agent?

Free to start. Ready for enterprise when you are.