> ## Documentation Index
> Fetch the complete documentation index at: https://docs.devin.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# CognitionAcp.McpTransport

> The transport an MCP server speaks.

The same three-value vocabulary the authored `transport` field uses and
the session-catalog config is discriminated by, named once so producers
cannot disagree about it — notably about what a URL server with no
declared transport is (streamable HTTP, not SSE).

```typescript
type McpTransport = "stdio" | "sse" | "shttp" | "unknown"
```


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