Prism Coder
The Mind Palace for AI Agents - HIPAA-hardened Cognitive Architecture with on-device LLM (prism-coder:7b), Hebbian learning, ACT-R spreading activation, adversarial evaluation, persistent memory, multi-agent Hivemind and visual dashboard. Zero API ke
What is Prism Coder?
Prism Coder is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to mind palace for ai agents - hipaa-hardened cognitive architecture with on-device llm (prism-coder:7b), hebbian learning, act-r spreading activation, adversarial evaluation, persistent memory, multi-ag...
The Mind Palace for AI Agents - HIPAA-hardened Cognitive Architecture with on-device LLM (prism-coder:7b), Hebbian learning, ACT-R spreading activation, adversarial evaluation, persistent memory, multi-agent Hivemind and visual dashboard. Zero API ke
This server falls under the Coding Agents and Knowledge & Memory categories on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- The Mind Palace for AI Agents - HIPAA-hardened Cognitive Arc
Use Cases
Maintainer
Works with
Installation
NPM
npx -y prism-mcp-serverManual Installation
npx -y prism-mcp-serverConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Prism Coder
Prism Coder is a local-first MCP server that gives Claude, Cursor, and other AI coding assistants persistent long-term memory that survives across sessions — stored in a local SQLite database with no API keys required on the free tier. It provides semantic + keyword + graph search across all stored memories, session drift detection to keep agents on task, time-travel to restore previous session states, and a multi-agent Hivemind mode for coordinating multiple AI agents on the same project. An optional local model fleet (prism-coder:1.7b through 32b via Ollama) handles offline tool-routing without cloud round-trips.
Prerequisites
- Node.js installed (LTS recommended)
- An MCP-compatible client such as Claude Desktop or Cursor
- Ollama installed if you want local model-based tool-routing (optional, free)
- No API keys required for the free local tier
Add the Prism Coder server to your MCP client
Open your claude_desktop_config.json (Claude Desktop) or equivalent MCP config file and add the prism-mcp-server block. No environment variables are required for the free local tier.
{
"mcpServers": {
"prism": {
"command": "npx",
"args": ["-y", "prism-mcp-server"]
}
}
}Restart your MCP client
Save the config and restart Claude Desktop or Cursor. Prism creates a local SQLite database at ~/.prism-mcp/data.db on first launch.
Optionally install a local Prism model via Ollama
For offline tool-routing without cloud API calls, pull one of the prism-coder models via Ollama. The 14b model is the recommended default router.
# Small — fits any device
ollama pull dcostenco/prism-coder:1b7
# Recommended default router (~8.4 GB)
ollama pull dcostenco/prism-coder:14bOpen the visual dashboard
Prism Coder ships with a web dashboard showing your project state, pending TODOs, session history, and a neural knowledge graph. Access it through the URL printed to the server output on startup.
Start working — memory is automatic
Begin coding sessions as normal. Prism Coder automatically stores decisions, files changed, and context summaries. The next session resumes with relevant memory loaded automatically.
Prism Coder Examples
Client configuration
Minimal Claude Desktop configuration for the Prism Coder MCP server (free local tier).
{
"mcpServers": {
"prism": {
"command": "npx",
"args": ["-y", "prism-mcp-server"]
}
}
}Prompts to try
Example prompts that leverage Prism Coder's persistent memory and session management.
- "What did I decide about the authentication flow in our last session?"
- "Search my memory for anything related to the database schema"
- "Am I still on track with my original goal for this session?"
- "Show me everything that happened in my session from last Tuesday"
- "Restore the project state from yesterday's session"Troubleshooting Prism Coder
Server starts but memory is not persisted between sessions
Verify the ~/.prism-mcp/data.db file exists and is writable. If npx is running in a sandboxed environment, it may not have write access to the home directory. Try specifying an explicit data path if supported.
Local model routing is not working with Ollama
Ensure Ollama is running (`ollama serve`) and the prism-coder model has been pulled (`ollama list`). Prism detects both `dcostenco/prism-coder:14b` and bare `prism-coder:14b` tags automatically.
Session drift detection returns unexpected results
The `session_detect_drift` tool compares current work against the session's stated goal. If the goal was never recorded at session start, drift detection has no baseline to compare against. State your session goal explicitly at the beginning of each session.
Frequently Asked Questions about Prism Coder
What is Prism Coder?
Prism Coder is a Model Context Protocol (MCP) server that mind palace for ai agents - hipaa-hardened cognitive architecture with on-device llm (prism-coder:7b), hebbian learning, act-r spreading activation, adversarial evaluation, persistent memory, multi-agent hivemind and visual dashboard. zero api ke It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Prism Coder?
Install via npm with the command: npx -y prism-mcp-server. Then add the server configuration to your AI client's JSON config file (e.g., claude_desktop_config.json or .cursor/mcp.json).
Which AI clients work with Prism Coder?
Prism Coder works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Prism Coder free to use?
Yes, Prism Coder is open source and available under the AGPL-3.0 license. You can use it freely in both personal and commercial projects.
Prism Coder Alternatives — Similar Coding Agents Servers
Looking for alternatives to Prism Coder? Here are other popular coding agents servers you can use with Claude, Cursor, and VS Code.
Dify
★ 142.2kProduction-ready platform for agentic workflow development.
Ruflo
★ 54.0k🌊 The leading agent orchestration platform for Claude. Deploy intelligent multi-agent swarms, coordinate autonomous workflows, and build conversational AI systems. Features enterprise-grade architecture, self-learning swarm intelligence, RAG integrat
Goose
★ 45.7kan open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM
Antigravity Awesome Skills
★ 38.3kInstallable GitHub library of 1,400+ agentic skills for Claude Code, Cursor, Codex CLI, Gemini CLI, Antigravity, and more. Includes installer CLI, bundles, workflows, and official/community skill collections.
AgentScope
★ 25.5kBuild and run agents you can see, understand and trust.
Serena
★ 24.5kA coding agent toolkit that provides IDE-like semantic code retrieval and editing tools, enabling LLMs to efficiently navigate and modify codebases using symbol-level operations instead of basic file reading and string replacements.
Browse More Coding Agents MCP Servers
Explore all coding agents servers available in the MCPgee directory. Each server includes setup guides for Claude, Cursor, and VS Code.
Set Up Prism Coder in Your Editor
Choose your AI client for step-by-step setup instructions.
Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
Ready to use Prism Coder?
Browse our complete directory of 33,000+ MCP servers, read setup guides for your editor, and start building with the Model Context Protocol.