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123 lines
2.9 KiB
Text
123 lines
2.9 KiB
Text
---
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title: "MCP"
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description: "Configure MCP servers for agent sessions."
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sidebarTitle: "MCP"
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icon: "plug"
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---
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MCP (Model Context Protocol) servers extend agents with tools. Sandbox Agent can auto-load MCP servers when a session starts by passing an `mcp` map in the create-session request.
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## Session Config
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The `mcp` field is a map of server name to config. Use `type: "local"` for stdio servers and `type: "remote"` for HTTP/SSE servers:
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<CodeGroup>
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```ts TypeScript
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import { SandboxAgentClient } from "sandbox-agent";
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const client = new SandboxAgentClient({
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baseUrl: "http://127.0.0.1:2468",
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token: process.env.SANDBOX_TOKEN,
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agent: "mock",
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});
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await client.createSession("claude-mcp", {
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agent: "claude",
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mcp: {
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filesystem: {
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type: "local",
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command: "my-mcp-server",
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args: ["--root", "."],
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},
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github: {
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type: "remote",
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url: "https://example.com/mcp",
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headers: {
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Authorization: "Bearer ${GITHUB_TOKEN}",
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},
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},
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},
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});
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```
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```bash cURL
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curl -X POST "http://127.0.0.1:2468/v1/sessions/claude-mcp" \
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-H "Authorization: Bearer $SANDBOX_TOKEN" \
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-H "Content-Type: application/json" \
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-d '{
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"agent": "claude",
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"mcp": {
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"filesystem": {
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"type": "local",
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"command": "my-mcp-server",
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"args": ["--root", "."]
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},
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"github": {
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"type": "remote",
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"url": "https://example.com/mcp",
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"headers": {
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"Authorization": "Bearer ${GITHUB_TOKEN}"
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}
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}
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}
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}'
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```
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</CodeGroup>
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## Config Fields
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### Local Server
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Stdio servers that run inside the sandbox.
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| Field | Description |
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|---|---|
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| `type` | `local` |
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| `command` | string or array (`["node", "server.js"]`) |
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| `args` | array of string arguments |
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| `env` | environment variables map |
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| `enabled` | enable or disable the server |
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| `timeoutMs` | tool timeout override |
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| `cwd` | working directory for the MCP process |
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```json
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{
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"type": "local",
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"command": ["node", "./mcp/server.js"],
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"args": ["--root", "."],
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"env": { "LOG_LEVEL": "debug" },
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"cwd": "/workspace"
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}
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```
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### Remote Server
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HTTP/SSE servers accessed over the network.
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| Field | Description |
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|---|---|
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| `type` | `remote` |
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| `url` | MCP server URL |
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| `headers` | static headers map |
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| `bearerTokenEnvVar` | env var name to inject into `Authorization: Bearer ...` |
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| `envHeaders` | map of header name to env var name |
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| `oauth` | object with `clientId`, `clientSecret`, `scope`, or `false` to disable |
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| `enabled` | enable or disable the server |
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| `timeoutMs` | tool timeout override |
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| `transport` | `http` or `sse` |
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```json
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{
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"type": "remote",
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"url": "https://example.com/mcp",
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"headers": { "x-client": "sandbox-agent" },
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"bearerTokenEnvVar": "MCP_TOKEN",
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"transport": "sse"
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}
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```
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## Custom MCP Servers
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To bundle and upload your own MCP server into the sandbox, see [Custom Tools](/custom-tools).
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