v0.4.0 · Interface

sessions

MCP session management and related features

This interface provides stateful session management for MCP servers, enabling:

Persistent session data storage using WASI key-value stores
Client elicitation (requesting information from clients)
Session lifecycle management (initialize, terminate, delete)
Async operations with pollable futures

Sessions are identified by unique IDs and can span multiple HTTP requests, allowing servers to maintain state and context across interactions.

https://spec.modelcontextprotocol.io/specification/2025-06-18/session

Resources

future-elicit-result

A future representing a pending elicit result

A bucket-backed session keyed by the Mcp-Session-Id HTTP header

Variants

Errors that can occur during session operations

Type Aliases

An output bytestream.

An error for input-stream and output-stream operations.

pollable represents a single I/O event which may be ready, or not.

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