What's built in
Before you build or connect an MCP server, check whether you need one. Many everyday things an agent does are built into Perfox and need no server at all; an MCP server is for reaching your own systems — orders, bookings, accounts — or a third-party app.
Built into every agent
These attach directly to the AI Agent node on the canvas:
| You want the agent to… | Use | Port |
|---|---|---|
| Answer from your documents | A Knowledge node pointing at Knowledge Base folders — see Knowledge Base in the Agent | Knowledge |
| Send an email, SMS or WhatsApp message | Email Sender, SMS Sender, WhatsApp Sender | Action |
| Hand the conversation to a person | Hand off to Human | Action |
| Add a row to a Google Sheet | Google Sheets | Action |
| Call an HTTP API you already have | HTTP Request | Action |
| Query your own database | Postgres, MySQL, MongoDB | Action |
| Read or extract data from a document | Extract Document, Detect Document Type | Action |
| Save a document to a customer's file | Upload Document | Action |
Each Action node uses a connection from Admin → Connections where it needs one (an email provider, a Google account, a database), so your agent uses your own accounts. The full list is in the canvas picker under Action.
When you need an MCP server
Use an Integration (an MCP server) when the agent has to work with a system that isn't covered above:
- A popular app — connect it from the catalog of 119 integrations in Connect → Integrations → Browse. See Registering.
- Your own systems — expose your business logic as tools on your own MCP server, then add it with Add custom server. See Building Your Own MCP Server.
Your business rules stay in your server; Perfox only calls it.
MCP servers Perfox hosts
Perfox also runs two MCP servers that other AI assistants can connect to:
- Perfox Docs MCP — search and read this documentation from Claude, Cursor or any MCP-capable tool. See Perfox Docs MCP.
- Platform API over MCP — create and publish agents, upload Knowledge Base files, and manage customers and conversations from an MCP-capable assistant. Explore it in the MCP Explorer.
Where to go next
- MCP in Perfox — how agents call MCP tools.
- Registering an MCP server — connect a catalog app or your own server.
- Integration sub-node — attach a server to an agent.