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AI agents & automation

Which AI tool should I use to build an AI agent that answers support email?

Support agents learn from your docs and past tickets, answer customers and hand off to humans when stuck.

  1. Rank 1

    Fin by Intercom

    Verdict Among the most capable support agents, works across email and chat and plugs into existing helpdesks, and you only pay per successful outcome. At $0.99 per outcome plus a $49/mo base, costs scale with volume and can surprise busy inboxes.

    Best for
    Businesses with real support volume who want high resolution rates
    Price
    Free tier: no. $0.99/outcome. Fin with your own helpdesk: $49/mo base including 50 outcomes, then $0.99 each. Free trial only.
    Last checked

  2. Rank 2

    Chatbase

    Verdict Quick to train on your docs and deploy to chat, email, WhatsApp and more, with a free plan to try it. Fewer helpdesk-grade workflows than Fin, and message credits run out quickly on the $40 plan.

    Best for
    Small teams and indie products wanting a fast setup
    Price
    Free tier: yes. $40/mo. Hobby $40/mo monthly or $32/mo billed yearly.
    Last checked

  3. Rank 3

    n8n

    Verdict Build your own email-reading agent with full control over logic and models, and self-host for free. You're the one building and maintaining it, so it's not plug-and-play.

    Best for
    Technical builders who want a custom, cheap, self-hosted agent
    Price
    Free tier: yes. €24/mo. Free via self-hosted Community Edition (you pay for your own server). Cloud Starter €24/mo (€20/mo annually), 2,500 executions.
    Last checked

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