prism-coder

by dcostenco · Memory & Knowledge · ★ 156

prism-coder is an MCP server by dcostenco. Persistent session memory for AI coding agents — local-first, with on-device inference, associative recall, and drift detection. Works with Claude Code, Cursor, and Codex. It has 156 GitHub stars and ranks #273 of 1287 in Memory & Knowledge by stars.

Category: Memory & Knowledge
Author: dcostenco
GitHub stars: 156
This week: Tracking since 18 Oct 2026
Weekly downloads: 1,062
Language: TypeScript
License: Apache-2.0 (open source)
Last update: 2026-10-23 (yesterday)
Links: Source Website npm

agent-memory
ai-agent
claude-code
codex
cognitive-architecture
drift-detection
local-first
local-llm
mcp
mcp-server
memory
model-context-protocol
+7 more

How to install prism-coder

prism-coder is published on npm as prism-coder, and it is listed in the official MCP Registry. These steps assume it runs as a local stdio server, which is the usual setup.

Check the README. Confirm the start command and note any API keys or environment variables it needs (pass them with -e KEY=value or an env block). You need Node.js for npx.

Add it to Claude Code from a terminal:

claude mcp add prism-coder -- npx -y prism-coder

Or add it to Cursor or Claude Desktop in .cursor/mcp.json or claude_desktop_config.json:

{
  "mcpServers": {
    "prism-coder": {
      "command": "npx",
      "args": [
        "-y",
        "prism-coder"
      ]
    }
  }
}

Restart the client and check it. Run claude mcp list, or open the client's MCP settings, and confirm prism-coder and its tools are listed. The install guide covers VS Code and Codex.

Also listed in

Maintain this project? Get it featured ($99/mo, pinned at the top of Memory & Knowledge) or see what featuring includes.

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Frequently asked questions

What is prism-coder?

prism-coder is an MCP server by dcostenco in the Memory & Knowledge category. Persistent session memory for AI coding agents — local-first, with on-device inference, associative recall, and drift detection. Works with Claude Code, Cursor, and Codex. It has 156 GitHub stars and ranks #273 of 1287 in Memory & Knowledge by stars.

Is prism-coder free and open source?

Yes. prism-coder is published under the Apache-2.0 license, so you can run, modify and self-host it at no cost. If it connects to a paid service, that service's own pricing and API terms still apply. Check the repository for the exact license text before using it commercially.

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