Psychosynth

Overview

Psychosynth is a Model Context Protocol (MCP) server: Psychometric data marketplace: Big Five profiles, cognitive biases & behavioral data via x402. In practice that means any MCP-compatible AI assistant can call Psychosynth's tools directly — the model decides when to use them in a conversation or agent run.

It runs locally: the npm package psychosynth-mcp speaks MCP over stdio on your machine. The current release is v0.1.3, with source at 3esign/psychosynth on GitHub.

Psychosynth is listed under File System on mcp.site and works with any MCP client — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and the rest of the ecosystem — using the install snippets below. If you maintain Psychosynth for 3esign, claim this listing to verify ownership, earn the Verified badge, and keep the details current.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "psychosynth": {
      "command": "npx",
      "args": [
        "-y",
        "psychosynth-mcp"
      ]
    }
  }
}