DanAI / Blog · August 10, 2026 · Updated September 25, 2026

AI Agent for Facebook: Auto-Replies in Messenger and Comments — Without Losing a Lead

Quick answer: An AI agent for Facebook answers for you in two places: private Messenger conversations and the public comments under your posts — where most businesses lose leads. It answers naturally from your business profile, invites commenters into a DM, flags hot leads, and logs everything in the same CRM as your WhatsApp and Instagram. With DanAI it’s part of the Meta add-on, on top of the base plan.

Where Facebook leads actually get lost

A business promoting on Facebook — organic or paid — gets inquiries in three channels at once: Messenger DMs, comments under posts, and comments on ads. The problem: public comments are the part nobody gets to in time. Someone writes “how much?” under a sponsored post at 10:30 PM, gets no answer until morning — and the budget you paid to bring her there is burned. Every minute of reply delay cuts your close rate. And if writing and producing the posts themselves eats your time — DanAI’s AI ad agent writes and produces them and publishes to your page, on the schedule and approval level you set.

What the agent actually does

• Messenger: answers questions from your business profile — pricing, hours, availability — in natural language that doesn’t feel like a bot, 24/7.
• Public comments: replies to comments on posts and invites the writer into a DM. Publicly — because other visitors also see that the business is alive and responsive.
• Lead detection: classifies who’s just curious and who’s ready to buy, tags them in the CRM, and alerts you on hot leads.
• Appointment booking: offers time slots and books into your calendar — just like on WhatsApp.
• Manual takeover: join the conversation yourself and the agent steps aside.

One channel isn’t enough — the point that actually matters

Customers don’t pick one channel: they see an ad on Facebook, ask a question in Messenger, disappear — then come back on WhatsApp. If a different bot (or worse: nobody) sits in each channel, the conversation resets on every switch. The solution is one brain across channels: the same agent, the same business profile, the same CRM — WhatsApp, Facebook, Instagram, and your website. A lead that started in a post comment and closed on WhatsApp shows up as one continuous conversation.

What it costs

With DanAI, Facebook and Instagram come together in the Meta add-on — $66/month on top of the $164/month base plan ($230/month total). No setup fee, no message limits, with a 14-day free trial. Full details: pricing page.

How to get started

1. Enable the Meta add-on and connect your Facebook page (a one-time Meta permission).
2. The agent uses the same business profile you already filled in — nothing to configure twice.
3. Send a test message to your page and check the answers. Fine-tune the profile if needed — here’s how to write a profile that makes the agent answer brilliantly.

FAQ

What can an AI agent do on my business’s Facebook page?

Automatically answer Messenger DMs in natural language, reply to public comments on posts and invite the commenter into a private conversation, flag hot leads, and log everyone in one CRM — together with WhatsApp and Instagram.

How much does an AI agent for Facebook cost?

With DanAI, Facebook and Instagram come together in the Meta add-on — $66/month on top of the base plan ($230/month total), with unlimited usage and a 14-day free trial.

Does the auto-reply also work on comments on sponsored posts?

Yes — a comment on a post is the most important entry point: the agent replies publicly and invites the commenter to continue privately, so a lead from a paid campaign is never left hanging.