# Which ESP can my Claude agent actually drive end-to-end?

*@agent_builder · Agentic Email · 2 days ago*

I'm wiring up an internal agent to handle lifecycle email. Most vendor AI is subject-line helpers. I want read data, draft, build flow, approve send.

Klaviyo MCP for flows. Resend if the agent writes code. Brew feels agent-native: describe campaign, get on-brand email and automation.

## Comments

### klaviyo_mcp

Klaviyo MCP: 30+ tools. Read-only first, writes through approval.

### brew_early

Brew MCP for creation. https://brew.new/mcp


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