Open SourceFollow Up Boss MCP Server
MCP Server · TypeScript · Elastic-2.0

Your real estate CRM, in plain English.

160 tools across 25 modules — full coverage of the Follow Up Boss API v1. Connect it to Claude, Cursor, Windsurf, or any MCP-compatible AI client and your agent can read and write your entire FUB account using natural language.

$npx @nerdsnipe-inc/follow-up-boss-mcp
160
Tools
25
Modules
137
Safe-mode active
What's inside

160 tools, 25 modules

People, appointments, deals, templates, groups, inbox apps, automations, ponds, webhooks, pipelines, custom fields, stages, tasks, email marketing, notes, action plans, calls, reactions, events, text messages, users, smart lists, and identity.

Safe mode by default

23 delete/destructive tools are disabled out of the box — 137 tools active. Set FUB_SAFE_MODE=false to enable all 160 once you're confident in your prompts.

Convenience helpers

Tag helpers, bulk update, and email lookup tools smooth over multi-step FUB API sequences an agent would otherwise need several calls to compose.

Registered System support

Endpoints restricted to Registered Systems in FUB — automations, attachments, webhooks, inbox apps — are supported when you provide FUB_SYSTEM and FUB_SYSTEM_KEY.

Zero build step

Run via npx with no cloning or compilation. Paste your API key into your AI client config and it works.

Quick install
npx (no install required)
$npx @nerdsnipe-inc/follow-up-boss-mcp
pnpm
$pnpm dlx @nerdsnipe-inc/follow-up-boss-mcp
bun
$bunx @nerdsnipe-inc/follow-up-boss-mcp
global install
$npm install -g @nerdsnipe-inc/follow-up-boss-mcp

Requires Node.js 18+ and a Follow Up Boss API key (Admin → API, starts with fka_). Automations, attachments, webhooks, and inbox apps additionally require a Registered System name/key from Admin → API → Registered Systems.

Tool coverage

People

17 tools
  • Contacts
  • Relationships
  • Attachments

Appointments

15 tools
  • Appointments
  • Types
  • Outcomes

Deals

14 tools
  • Deals
  • Custom fields
  • Attachments

Templates

12 tools
  • Email templates
  • Text message templates

Groups

12 tools
  • Groups
  • Teams
  • Team inboxes

Automations

6 tools
  • Automations 2.0 management
Safety

Destructive tools are opt-in.

137 of 160 tools are active by default — the 23 delete/destructive tools stay disabled until you explicitly set FUB_SAFE_MODE=false, so an agent can't accidentally wipe records on its first run.

Frequently asked

Do I need Registered System credentials?

Only for automations, attachments, webhooks, and inbox apps — everything else works with just your FUB_API_KEY. Register a system at Admin → API → Registered Systems if you need those.

What license is this under?

Elastic License 2.0.

Can I use it without installing anything globally?

Yes — npx @nerdsnipe-inc/follow-up-boss-mcp runs it on demand with no global install.

Talk to your CRM instead of clicking through it.

One API key and an npx command. Your AI agent handles contacts, deals, appointments, and automations from natural language instructions.