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MCP Integration

MCP-First: Any Tool, Instant Integration

OrchStack natively supports the Model Context Protocol. Connect any MCP tool server and your agents instantly gain new capabilities.

Start BuildingMCP Spec
What is MCP?

The USB-C for AI Tools

The Model Context Protocol (MCP) is an open standard for connecting AI models to external tools and data sources. Think of it as a universal plug for agent capabilities.

Open standard — not locked to any vendor or platform
Typed tool definitions with JSON Schema inputs/outputs
Bidirectional communication between agent and tool
Works with any LLM provider — OpenAI, Anthropic, Google, etc.
OrchStack Agent
LLM + Memory + Knowledge
MCP Protocol
Database
Web Search
Filesystem
How It Works

MCP in OrchStack

Three-step integration: discover, register, execute.

01

Auto-Discovery

Point OrchStack at an MCP server URL and it automatically discovers all available tools, their schemas, and capabilities.

02

Tool Registration

Discovered tools are registered in the OrchStack tool registry with typed inputs, outputs, and descriptions — ready for any agent to use.

03

Execution

When an agent decides to use a tool, OrchStack routes the request to the correct MCP server, handles auth, retries, and returns structured results.

MCP Factory

Build Custom MCP Servers

Use MCP Factory to scaffold, build, and deploy custom tool servers in minutes.

crm-tools.mcp.ts
import { MCPServer, tool } from '@orchstack/mcp';

const server = new MCPServer({
  name: 'CRM Tools',
  version: '1.0.0',
});

server.register(
  tool({
    name: 'lookup_customer',
    description: 'Find a customer by phone or email',
    input: { query: 'string' },
    async handler(input) {
      return await crm.search(input.query);
    }
  })
);

server.start();
// → MCP server running on port 3001
Pre-built Servers

Ready-Made Integrations

Plug in pre-built MCP servers and your agents gain new capabilities instantly.

Filesystem

Read, write, and manage files and directories.

PostgreSQL

Query, insert, and manage PostgreSQL databases.

Web Search

Search the web and extract structured content.

Email

Send, read, and manage emails via SMTP/IMAP.

Calendar

Create, update, and query calendar events.

Payments

Process payments via Stripe, Razorpay, and more.

Messaging

Send messages via WhatsApp, Slack, and SMS.

Git

Read repos, create PRs, and manage branches.

Capabilities

MCP Features

First-class MCP support built into every layer of the platform.

Auto-Discovery

Point at an MCP server URL and OrchStack discovers all tools, schemas, and capabilities automatically.

Tool Registry

All discovered tools are indexed in a central registry with descriptions, schemas, and usage stats.

MCP Factory

Scaffold, build, and deploy custom MCP servers with the OrchStack CLI in minutes.

Custom Servers

Build MCP servers for proprietary APIs, internal tools, or legacy systems with full TypeScript support.

Protocol Compliance

Full MCP specification compliance with schema validation, error handling, and capability negotiation.

Hot-plug

Add or remove MCP servers without restarting agents. Tools appear and disappear in real time.

Frequently Asked Questions

Connect Any Tool to Your Agents

MCP-native integration means infinite extensibility.

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