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Automate Facebook Messenger Replies for Your Small Business
Tutorial·April 26, 2026·11 min read

Automate Facebook Messenger Replies for Your Small Business

This is the exact technical setup I use to automate Messenger replies. You'll need: a Facebook Page, a Meta Developer account, Claude API key, and a server to host the webhook.

Step 1 — Set up Meta webhook. Go to Meta for Developers, create an app, add Messenger product, and configure the webhook URL. The webhook listens for incoming messages.

Step 2 — Connect Claude API. When a message comes in, send it to Claude with your FAQ prompt. Claude generates a reply. Send the reply back via Messenger API.

Pro tip: use prompt caching with Anthropic's API. It caches your system prompt (FAQ document) and only sends the new message each time. Cuts your API bill by up to 90%.

Total setup time: about 4 hours. Running cost: ₱500–1,500/month depending on volume.

Want the same system for your business?

I'll set up AI automation for your business — just like I did for mine.