BuildersRx — Reply-Side DM Automation at Scale

Custom AI + Automation Build · Done-for-you system

Custom AI + Automation BuildDone-for-you system
Built in
Phased engagement
Client
@buildersrx
Stack
6 tools

The problem

What needed solving

BuildersRx grows by collaborating with trades creators on their reels, and the entire engine ran through manual DMs. The owner was copy-pasting the same two outreach templates thousands of times, accepting collab invites by hand, and constantly losing track of who had replied and who still needed a follow-up. At over a million followers the inbound volume made the manual approach unsustainable — every conversation depended on the owner personally being in the app.

The approach

How it was built

  1. 1

    Built a DM automation system that handles the reply-and-management side so the owner runs relationships instead of living in the inbox.

  2. 2

    When someone engages, it answers in the owner's own voice, routes brand inquiries, and enforces an avoid-list so the wrong accounts are never auto-engaged.

  3. 3

    Logs every conversation to a durable record and pings the owner on Telegram the moment a real opportunity lands.

  4. 4

    Built reply-side — it only responds to people who engage first, never cold-DMing — which keeps it platform-compliant and protects a page of this size.

  5. 5

    Independently maintainable: the owner updates his own avoid-list from a simple spreadsheet, no developer required.

The outcome

What it shipped

  • Relief from the grind — no more copy-pasting templates by hand.
  • No missed collabs, with inbound handled at scale on a page with over a million followers.
  • Owner stays in control of every relationship while the repetitive work runs itself.
  • Gets tapped on the shoulder the instant something needs him.

The stack

Tools used

Node.js and Express
Custom service deployed on Render sitting between ManyChat and the AI layer
Claude (Anthropic) API
Reply engine anchored to the owner's real templates and voice; smart enough not to re-pitch past collaborators
ManyChat
Instagram DM trigger and delivery surface
Google Sheets
Live owner-controlled blocklist and fire-and-forget conversation logging
Telegram
Real-time alerts when a real opportunity lands
Render
Always-on hosting with production touches: boot-time config validation, input validation, body-size caps, and rate limiting

Want something like this?

Tell me what you need. I'll scope it, quote it, and build it - usually in days, not months.