Prism Coder

Overview

Prism Coder is a Model Context Protocol server that provides session memory for coding agents with local-first recall, drift detection, and on-device inference. Any MCP-compatible AI assistant can call Prism Coder's tools directly, allowing the model to decide when to use them during conversations or agent runs.

The server runs locally via the npm package prism-mcp-server, communicating over stdio on your machine. It requires an API key for authentication. The latest release is v20.17.1, published under the Apache-2.0 license with source code available at dcostenco/prism-coder on GitHub, where it has 157 stars.

Prism Coder is categorized as AI & Agents on mcp.site and works with all MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and others. Maintainers of Prism Coder can claim this listing to verify ownership and keep information current.

Installation

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