📦

Rescript

ReScript bindings for the public MCP TypeScript SDK split packages

0 installs

Trust: 37 — Low

Ai

Ask AI about Rescript

Powered by Claude · Grounded in docs

I know everything about Rescript. Ask me about installation, configuration, usage, or troubleshooting.

0/500

Documentation

rescript-mcp

ReScript bindings for the split Model Context Protocol TypeScript SDK packages:

@modelcontextprotocol/client
@modelcontextprotocol/server
@modelcontextprotocol/node

The bindings stay close to the upstream SDK names and transport model, so the TypeScript MCP docs remain useful when working from ReScript.

Release Stage

This package is pre-alpha.

current repo version line: 0.0.1-alpha.0
the repo release workflow is in PR-only mode
stable latest publication requires explicit owner approval after the package leaves pre-alpha
do not treat the current repo line as a stable production contract

Install

npm install rescript-mcp @modelcontextprotocol/client @modelcontextprotocol/server @modelcontextprotocol/node

Add the package to rescript.json:

{
  "dependencies": ["rescript-mcp"]
}

Supported package line:

@modelcontextprotocol/client@2.0.0-alpha.2
@modelcontextprotocol/server@2.0.0-alpha.2
@modelcontextprotocol/node@2.0.0-alpha.2

Quick Start

let implementation = McpImplementation.make(~name="example-server", ~version="0.1.0")
let server = McpLowLevelServer.make(implementation)
let transport =
  McpWebStandardStreamableHttpServerTransport.makeWithOptions(
    McpWebStandardStreamableHttpServerTransportOptions.make(~enableJsonResponse=true, ()),
  )

let _promise = server->McpLowLevelServer.connect(transport)

Package Guide

McpClient covers client setup, connection, and request flow
McpLowLevelServer and McpServer cover low-level server wiring and higher-level server APIs
McpTool, McpPrompt, McpResource, and McpResourceTemplate cover server authoring APIs
Mcp.Server.ExperimentalTasks, Mcp.Client.ExperimentalTasks, and Mcp.Shared.Task* cover the installed experimental task flow, pluggable task stores, and task queues
McpProtocol and related schema modules cover typed protocol request/result objects, Mcp.Protocol.JsonValue, notification params, and shared transport data
Mcp.Shared.UriTemplate exposes the upstream URI template surface used by resource templates
transport modules cover stdio, Streamable HTTP, SSE, and web-standard server transports
grouped re-exports also live under Mcp

Published package subpaths:

rescript-mcp
rescript-mcp/auth
rescript-mcp/protocol
rescript-mcp/core
rescript-mcp/shared
rescript-mcp/server
rescript-mcp/client
rescript-mcp/transports

Upstream package references:

Examples:

Development

npm install
npm run build
npm test
npm pack --dry-run

Release

Releases are versioned with Changesets.

The current repo stays in pre-alpha PR-only mode. GitHub Actions may open version PRs through the repository workflow, and stable npm publication remains gated behind explicit owner approval:

.github/workflows/release.yml

Rescript

Reviews