mcp-v8 JavaScript MCP Server

Example Use Cases

• 1

  Run JavaScript or TypeScript code asynchronously with state persistence.

• 2

  Secure, policy-controlled filesystem and HTTP fetch capabilities within JavaScript execution.

• 3

  Scalable MCP server deployments with clustering and multiple transport protocols.

Description

mcp-v8 is a Rust implementation of a Model Context Protocol server that runs JavaScript and TypeScript code asynchronously in a secure V8 engine. It supports persistent heap snapshots stored locally or on S3, enabling stateful executions and session logging. The server offers multiple transport protocols, clustering, concurrency control, and policy-gated filesystem and fetch operations, making it suitable for integration with AI agents like Claude and Cursor.