Model Context Protocol Explained: How Follow Up Ace Uses It
Model Context Protocol (MCP) is an open standard that lets AI assistants like Claude and ChatGPT connect to live data sources and take real actions — rather than only working with text you paste in. Follow Up Ace exposes 215 MCP tools covering every part of Follow Up Boss: contact management, pipeline analysis, compliance scanning, and more. Connecting takes one URL and under a minute.
What is Model Context Protocol (MCP)?
Model Context Protocol is an open standard, introduced by Anthropic in late 2024, that defines how AI models connect to external tools and data sources. Before MCP, every AI integration required custom glue code on both sides of the connection. MCP standardizes the interface — so any AI assistant that supports MCP can connect to any MCP server, including Follow Up Ace's, with a single configuration step.
Think of it as the USB standard for AI integrations. Instead of needing a different cable for every device, any MCP-compatible AI plugs into any MCP-compatible tool.
The key capability MCP unlocks is real-time, bidirectional access. When an AI assistant connects to an MCP server, it can:
- Query live data (your actual FUB contacts, pipeline, notes — not a stale export)
- Take actions (add a tag, create a note, update a custom field) on your behalf
- Reason across multiple data points simultaneously ("show me all leads with a Warm Ace Tier who haven't been called in 5 days")
How does Follow Up Ace use MCP?
Follow Up Ace runs an MCP server that exposes 215 tools covering the full surface of Follow Up Boss — contact CRUD, communication logs, smart list filtering, pipeline analysis, compliance scanning, and the full suite of Ace Trove fields. Any AI that connects to it can operate your CRM through natural language.
The server is verified at line 206 of mcp-server/src/index.ts: "CORE CAPABILITIES (215 tools — full stdio surface)" and again at line 3818. The tool set covers:
- Contact management — search, create, edit, tag, deduplicate
- Communication tracking — calls, texts, emails, events, and timeline history
- Pipeline analysis — pipeline health check, deal stage transitions, revenue at risk
- Lead intelligence — Ace Score, Ace Tier, preferred channel, Zillow speed-to-lead check
- Compliance — Fair Housing scan on any outgoing message text
- Knowledge graph — persistent facts about a contact's preferences and history
How do you connect Claude or ChatGPT to Follow Up Ace via MCP?
The connection points are two URLs, depending on which AI client you use:
- Claude (Streamable HTTP):
https://followupace.com/mcp - ChatGPT (Server-Sent Events):
https://followupace.com/api/mcp/sse/
Both endpoints are authenticated via your Follow Up Ace credentials. MCP access requires the Pro plan ($55/seat/month).
Step-by-step: connecting Claude Desktop to Follow Up Ace
- Open Claude Desktop and go to Settings → Integrations (or MCP servers, depending on your version).
- Add a new MCP server and paste the Streamable HTTP URL:
https://followupace.com/mcp - Enter your Follow Up Ace API credentials when prompted.
- Save. Claude will discover all 215 tools automatically and list them in the integration panel.
- Start a conversation: "Show me my Hot leads from this week" or "Add a note to [contact name]."
Step-by-step: connecting ChatGPT to Follow Up Ace
- In ChatGPT, open Settings → Connectors (requires ChatGPT Plus or above).
- Add a custom connector and paste the SSE URL:
https://followupace.com/api/mcp/sse/ - Authenticate with your Follow Up Ace credentials.
- Once connected, ChatGPT can query and update your FUB data through natural language.
What can you actually do once MCP is connected?
With Follow Up Ace's 215 MCP tools active in Claude or ChatGPT, the practical workflows that open up include:
| Natural language request | What Ace does via MCP |
|---|---|
| "Who are my hottest leads right now?" | Queries FUB contacts filtered by Ace Tier = Hot, returns list with last contact date |
| "Summarize my pipeline health" | Runs pipeline-health-check tool: stuck deals, overdue transitions, revenue forecast |
| "Draft a follow-up text for [contact] and check it for Fair Housing issues" | Reads contact history, drafts message, runs compliance scan before showing it to you |
| "Add a note to Sarah Johnson: 'Called, left voicemail, try again Thursday'" | Creates note in FUB on the correct contact record in real time |
| "Which Zillow leads haven't been called within 5 minutes of registration this week?" | Runs zillow_speed_to_lead_check across the week's Zillow imports |
| "Find contacts who are likely to sell in the next 6 months" | Queries Seller Radar fields — Ace Seller Score and Ace Seller Tier — to return ranked list |
What is the difference between MCP and a traditional API integration?
Traditional API integrations require a developer to write code that maps specific requests to specific endpoints. The agent (or the user) must know what the API can do and how to ask for it. MCP inverts this: the server publishes its capabilities as a structured list of tools with descriptions, and the AI figures out which tool to call based on the user's plain-English request.
This means non-technical agents can effectively operate a 215-tool CRM integration through conversation. There is no Zapier workflow to build, no webhook to configure, and no prompt engineering required — just a connected AI that can do whatever a developer could do through the API, on your behalf, in plain language.
Is MCP access secure? Who can see my Follow Up Boss data?
Follow Up Ace's MCP server operates under your credentials — the AI assistant acts on behalf of your account, with the same permissions your account has in Follow Up Boss. The server does not store conversation transcripts or share data across accounts. Each MCP session is scoped to the authenticated user.
Because MCP tools can perform write operations (creating notes, updating fields, adding tags), it is important to use the MCP connection within an AI assistant where you review actions before they execute — or, for read-only exploration, you can restrict the tool surface to read tools only by working with your Ace account settings.
How does MCP compare to the built-in Ace chat interface?
The built-in Follow Up Ace chat interface — accessible at followupace.com — runs the same MCP tool surface in a purpose-built UI optimized for real estate workflows. It includes pre-built agentic recipes (like the lead-nurture optimizer and pipeline health check), compliance scanning, and the Zillow speed-to-lead workflow out of the box.
The external MCP connection (Claude Desktop, ChatGPT) is for teams who want to integrate Follow Up Boss data into a broader AI workflow — for example, asking Claude to cross-reference your FUB pipeline with a market report you've shared, or using ChatGPT to generate a property analysis that also pulls the client's full conversation history from FUB.
Both surfaces run on the same 215-tool server. The choice is workflow preference, not capability difference.
Do I need a Pro plan for MCP access?
Yes. MCP access is a Pro-plan feature ($55/seat/month). The free and Regular ($25/seat/month) plans provide access to the built-in Ace chat interface, the free Ace Win Score and Churn Risk fields, and the core agentic tools. Pro adds MCP connectivity for external AI clients, voice chat, and full access to all 215 tools in external assistants. See full pricing for details.
For a broader look at the agentic capabilities powered by this tool surface, see followupace.com/agentic.
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