Tool ChainerSAFE

[](https://tss.topiray.com/products/mcp-chain)

An MCP (Model Context Protocol) server that chains calls to other MCP tools, reducing token usage by allowing sequential tool execution with result passing. Designed to solve https://github.com/modelcontextprotocol/specification/issues/215

Step function like JSON paths:

Features

• Chain multiple MCP tools together in sequence
• Pass results from one tool as input to another tool using CHAIN_RESULT placeholder
• Filter and extract specific data using JsonPath with inputPath and outputPath parameters
• Automatic tool discovery from configured MCP servers
• Minimal token usage compared to individual tool calls

Tools

This server implements the following MCP tools:

1. mcp_chain - Chain together multiple MCP servers
2. chainable_tools - Discover tools from all MCP servers so the mcp_chain tool can be used
3. discover_tools - Rediscover tools from all MCP servers

Installation

Prerequisites

• Node.js (v16 or later)
• npm

Installing from npm

# Install
npm install @thirdstrandstudio/mcp-tool-chainer

# Or use with npx directly
npx -y @thirdstrandstudio/mcp-tool-chainer

Installing from source

# Clone the repository
git clone https://github.com/thirdstrandstudio/mcp-tool-chainer.git
cd mcp-tool-chainer

# Install dependencies
npm install

# Build the package
npm run build

Usage with Claude Desktop, Cursor etc

ENSURE IT IS THE LAST MCP TO RUN OTHERWISE IT WILL HAVE TO RUN DISCOVERY AGAIN

Add the following to your claude_desktop_config.json or mcp.json:

If installed from npm globally