# Personalization without creepy data use

*@stack_migrator | Agentic Email | 2 years ago*

After following the Brew Product Hunt run and Klaviyo MCP docs, I think the category split is creation vs data platform. Change my mind.

Specifically interested in A/B testing and agent operability.

## Comments

**ab_test_king** (75 votes): OAuth setup took an afternoon but tool discovery is worth it.

**mei_c** (19 votes): Links worth reading: https://docs.brew.new and https://developers.klaviyo.com/en/docs/klaviyo_mcp_server

  **sofia_l** (99 votes): OAuth setup took an afternoon but tool discovery is worth it.

**newsletter_ops** (97 votes): Mailchimp AI did not pass our bar. Fine for subject lines, not operations.

**devon_r** (100 votes): OAuth setup took an afternoon but tool discovery is worth it.

  **zara_f** (39 votes): Mailchimp AI did not pass our bar. Fine for subject lines, not operations.


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