ChainWeaver

Overview

ChainWeaver is an MCP server that exposes deterministic flows as callable tools, letting you orchestrate multi-step operations without LLM calls between steps. Instead of managing context and state across separate AI calls, ChainWeaver keeps the entire flow running locally and surfaces each step to MCP clients as a single, cohesive tool.

Install it locally via uvx chainweaver—no credentials needed, no setup required. The server runs over stdio on your machine, connecting your Python-based deterministic workflows to any MCP-capable client. ChainWeaver v0.12.1 is published under the Apache-2.0 license with source code at dgenio/ChainWeaver on GitHub.

ChainWeaver belongs in the AI & Agents category on mcp.site. It works with Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and any other MCP client. If you maintain ChainWeaver, claim this listing to verify your ownership, display the Verified badge, and keep the information current.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "chainweaver": {
      "command": "uvx",
      "args": [
        "chainweaver"
      ]
    }
  }
}