51 lines
1.3 KiB
Plaintext
51 lines
1.3 KiB
Plaintext
---
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title: Connecting Letta to MCP Servers
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subtitle: Connect Letta agents to tools over Model Context Protocol (MCP)
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slug: guides/mcp/setup
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---
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<Warning>
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Letta no longer supports legacy `.json` configuration files. Use the ADE or API/SDK.
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</Warning>
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Letta supports three MCP transport types depending on your deployment and use case.
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## Connection Methods
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- **ADE**: Point-and-click server management via web interface
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- **API/SDK**: Programmatic integration for production
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## Transport Types
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- **Streamable HTTP** (Recommended): Production-ready with auth support. Works on Cloud + self-hosted.
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- **SSE** (Legacy): Deprecated but supported for compatibility.
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- **stdio** (Self-hosted only): Local development and testing.
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| Transport | Cloud | Self-hosted |
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|-----------|-------|-------------|
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| Streamable HTTP | ✅ | ✅ |
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| SSE | ✅ | ✅ |
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| stdio | ❌ | ✅ |
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## Tool Execution Flow
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```mermaid
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sequenceDiagram
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participant A as Letta Agent
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participant L as Letta Server
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participant S as MCP Server
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A->>L: Tool request
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L->>S: MCP execute
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S-->>L: Result
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L-->>A: Response
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```
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## Quick Start
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1. Choose transport type based on your deployment
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2. Connect via ADE: Tool Manager → Add MCP Server
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3. Attach tools to agents
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See [remote servers](/guides/mcp/remote) or [local servers](/guides/mcp/local) for detailed setup.
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