---
title: "AI Voice Agent + Follow Up Boss / BoomTown: Real Estate Lead Routing in 2026"
description: "AI-enhanced CRMs hit ~89% adoption among top real estate producers in 2026. We walk through the Follow Up Boss and BoomTown APIs that let a CallSphere voice agent score and route leads instantly."
canonical: https://callsphere.ai/blog/vw2g-follow-up-boss-boomtown-real-estate-voice
category: "AI Voice Agents"
tags: ["Follow Up Boss", "BoomTown", "Real Estate", "Lead Routing", "Voice Agents"]
author: "CallSphere Team"
published: 2026-04-24T00:00:00.000Z
updated: 2026-05-07T09:32:11.288Z
---

# AI Voice Agent + Follow Up Boss / BoomTown: Real Estate Lead Routing in 2026

> AI-enhanced CRMs hit ~89% adoption among top real estate producers in 2026. We walk through the Follow Up Boss and BoomTown APIs that let a CallSphere voice agent score and route leads instantly.

> AI-enhanced CRMs are projected to be in use by ~89% of top real estate producers by end of 2026. The two CRMs to plan around if you sell to brokerages are Follow Up Boss (CRM-first) and BoomTown (heavier growth platform). CallSphere's Real Estate OneRoof deployment integrates both.

## What the integration unlocks

```mermaid
flowchart LR
  User --> Triage["Triage / Supervisor"]
  Triage -->|tool A| A["Specialist A"]
  Triage -->|tool B| B["Specialist B"]
  Triage -->|tool C| C["Specialist C"]
  A --> Mem[(Shared memory · mem0/Letta)]
  B --> Mem
  C --> Mem
  Mem --> Final["Final response"]
```

CallSphere reference architecture

An IDX form submission fires at 11:42pm. CallSphere's voice agent (yes, the one that handles overnight) calls within 90 seconds, qualifies the lead with property, budget, and timeline, scores them, and writes the structured result back to Follow Up Boss with the appropriate Smart List membership. The lead's owner sees a hot, qualified lead in their CRM by 7am with a recording link. Conversion rate from speed-to-lead under 2 minutes is 6-8x baseline.

## How the API exposes it

**Follow Up Boss** at `https://api.followupboss.com/v1`: `POST /events` is the canonical entry for new leads, `POST /people` and `PUT /people/{id}` for direct contact CRUD, `POST /notes` for call summaries, `POST /calls` to log a call with `outcome`, `duration`, and `recordingUrl`, `POST /actionPlans` to enroll into a sequence, `GET /smartLists` and `POST /smartLists/{id}/people` for routing. Auth: HTTP Basic with a tenant-scoped API key.

**BoomTown** at `https://api.boomtownroi.com`: REST endpoints for Leads, Activities, and Tasks; the predictive C-CRM exposes Best-Fit Leads via `GET /v1/leads/best-fit`. Auth: API key + tenant ID. Webhook subscriptions for lead status changes and Opportunity Wall additions.

## How CallSphere implements it

CallSphere's Real Estate OneRoof deployment runs 10 specialist agents on the OpenAI Agents SDK: Triage, Property Search, Suburb Intelligence, Mortgage, Showing Coordinator, Listing Coordinator, Buyer Specialist, Seller Specialist, Investor Specialist, and Voicemail. After Triage, the lead is qualified and a structured payload is written to Follow Up Boss or BoomTown — including `property_type`, `budget_min`, `budget_max`, `bedrooms`, `suburb`, `timeline`, `pre_approval_status`, plus a 1-5 lead score.

CallSphere runs 37 specialist agents across 6 verticals with 90+ tools and 115+ DB tables. Pricing $149 / $499 / $1499. [14-day trial](/trial). [22% affiliate](/affiliate). [Real estate vertical](/industries/real-estate).

## Build steps

1. In Follow Up Boss, generate an API key from Admin > API. In BoomTown, request API access from Customer Success.
2. Configure your CallSphere tenant with the credentials.
3. For inbound calls, the voice agent runs Triage. On qualification, it calls `POST /events` (Follow Up Boss) or `POST /v1/leads` (BoomTown) with extracted fields.
4. Add a structured `source` of `CallSphere Voice` so reporting clearly attributes inbound performance.
5. Log the full call with `POST /calls` to Follow Up Boss including `recordingUrl` and `outcome`. The CRM player surfaces the recording in the contact timeline.
6. Use `POST /smartLists/{id}/people` to route hot leads (`score >= 4`) into the "Call Now" Smart List that fires SMS to the on-call rep.
7. Subscribe to the `person.updated` webhook so when a rep marks a lead won/lost, the voice agent's CRM cache is invalidated.

## Code snippet

```typescript
// Push a qualified real-estate lead from CallSphere into Follow Up Boss
const event = await fetch("https://api.followupboss.com/v1/events", {
  method: "POST",
  headers: {
    Authorization: `Basic ${btoa(`${fubApiKey}:`)}`,
    "Content-Type": "application/json",
    "X-System": "CallSphere",
    "X-System-Key": "callsphere-voice-real-estate",
  },
  body: JSON.stringify({
    source: "CallSphere Voice",
    type: "Inquiry",
    person: {
      firstName: extracted.firstName,
      lastName: extracted.lastName,
      emails: [{ value: extracted.email }],
      phones: [{ value: caller.e164 }],
    },
    property: {
      street: extracted.streetOfInterest,
      city: extracted.suburb,
      bedrooms: extracted.bedrooms,
      price: extracted.budgetMax,
    },
    message: extracted.summary,
  }),
});
```

## FAQ

**Which CRM should we recommend?** Follow Up Boss for CRM-first teams that already have IDX. BoomTown for teams that want a heavier, lead-gen-bundled growth platform.

**Does this support kvCORE / Sierra Interactive / Lofty?** Yes via the same adapter pattern. CallSphere supports kvCORE, Sierra, Lofty, Real Geeks, and CINC under the same 10-tool real estate interface.

**How does Ylopo or other native AI conversation tools fit in?** They are competitors to CallSphere within the FUB ecosystem. CallSphere is the right pick when you need multi-channel voice + chat across more than just real estate.

**What about TCPA / DNC?** CallSphere ships TCPA-compliant calling time controls and DNC checking before any outbound dial.

**How do I demo this?** Start a [trial](/trial), pick Real Estate, and connect Follow Up Boss in Settings. See [pricing](/pricing).

## Sources

- [AI Lead Follow-Up for Real Estate Agents 2026](https://www.milehightitleguy.com/post/how-to-set-up-ai-lead-follow-up-for-real-estate-agents-2026-guide)
- [Follow Up Boss vs BoomTown 2026](https://theprotoolkit.com/follow-up-boss-vs-boomtown/)
- [Follow Up Boss API](https://docs.followupboss.com/reference/getting-started)
- [Real Estate CRM Integrations: FUB, kvCORE, BoomTown](https://llms.myaifrontdesk.com/real-estate-crm-integrations)

---

Source: https://callsphere.ai/blog/vw2g-follow-up-boss-boomtown-real-estate-voice