Koskamo

Prism MCP Server

A local-first MCP server providing persistent session memory for AI coding agents. It features on-device inference, associative recall, drift detection, and semantic search using SQLite and vector search capabilities. It integrates with tools like Claude Code, Cursor, and Codex, and supports ACT-R ranking for memory relevance.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Prism MCP Server logo, by dcostencoCommunity listingLocal stdioSource reviewed; not executedPublished by dcostenco
You need:npm install -g prism-mcp-server
Vendor documentation

What you can do with it

  • Provide persistent session memory for AI coding agents
  • Perform semantic search and associative recall of past interactions
  • Detect drift in agent behavior or context
  • Enable local-first on-device inference to reduce cloud dependency

Source and maintenance

Community listingRegistry 20.22.4
mcp-registry: io.github.dcostenco/prism-coder@20.22.4Source repository
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

prism-mcp-server 20.22.4

npm
prism-mcp-server package definition
{
  "version": "20.22.4",
  "transport": "stdio",
  "identifier": "prism-mcp-server",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "BRAVE_API_KEY",
      "format": "string",
      "description": "Brave Search API key for web search tools"
    },
    {
      "name": "GEMINI_API_KEY",
      "format": "string",
      "description": "Google Gemini API key for AI-powered summarization and embeddings"
    },
    {
      "name": "SUPABASE_URL",
      "format": "string",
      "description": "Supabase project URL for session memory and knowledge persistence"
    },
    {
      "name": "SUPABASE_KEY",
      "format": "string",
      "description": "Supabase service role key for database access"
    },
    {
      "name": "PRISM_USER_ID",
      "format": "string",
      "description": "User ID for multi-tenant row-level security isolation (defaults to 'default')"
    },
    {
      "name": "GCP_PROJECT_ID",
      "format": "string",
      "description": "Google Cloud project ID for Vertex AI Discovery Engine integration"
    },
    {
      "name": "VERTEX_LOCATION",
      "format": "string",
      "description": "Vertex AI location/region (defaults to 'global')"
    },
    {
      "name": "VERTEX_DATA_STORE_ID",
      "format": "string",
      "description": "Vertex AI Discovery Engine data store ID for enterprise search"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "prism-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "prism-mcp-server@20.22.4"
      ],
      "env": {
        "BRAVE_API_KEY": "<YOUR_BRAVE_API_KEY>",
        "GEMINI_API_KEY": "<YOUR_GEMINI_API_KEY>",
        "SUPABASE_URL": "<YOUR_SUPABASE_URL>",
        "SUPABASE_KEY": "<YOUR_SUPABASE_KEY>",
        "PRISM_USER_ID": "<YOUR_PRISM_USER_ID>",
        "GCP_PROJECT_ID": "<YOUR_GCP_PROJECT_ID>",
        "VERTEX_LOCATION": "<YOUR_VERTEX_LOCATION>",
        "VERTEX_DATA_STORE_ID": "<YOUR_VERTEX_DATA_STORE_ID>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "prism-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "prism-mcp-server@20.22.4"
      ],
      "env": {
        "BRAVE_API_KEY": "<YOUR_BRAVE_API_KEY>",
        "GEMINI_API_KEY": "<YOUR_GEMINI_API_KEY>",
        "SUPABASE_URL": "<YOUR_SUPABASE_URL>",
        "SUPABASE_KEY": "<YOUR_SUPABASE_KEY>",
        "PRISM_USER_ID": "<YOUR_PRISM_USER_ID>",
        "GCP_PROJECT_ID": "<YOUR_GCP_PROJECT_ID>",
        "VERTEX_LOCATION": "<YOUR_VERTEX_LOCATION>",
        "VERTEX_DATA_STORE_ID": "<YOUR_VERTEX_DATA_STORE_ID>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "prism-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "prism-mcp-server@20.22.4"
      ],
      "env": {
        "BRAVE_API_KEY": "<YOUR_BRAVE_API_KEY>",
        "GEMINI_API_KEY": "<YOUR_GEMINI_API_KEY>",
        "SUPABASE_URL": "<YOUR_SUPABASE_URL>",
        "SUPABASE_KEY": "<YOUR_SUPABASE_KEY>",
        "PRISM_USER_ID": "<YOUR_PRISM_USER_ID>",
        "GCP_PROJECT_ID": "<YOUR_GCP_PROJECT_ID>",
        "VERTEX_LOCATION": "<YOUR_VERTEX_LOCATION>",
        "VERTEX_DATA_STORE_ID": "<YOUR_VERTEX_DATA_STORE_ID>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "prism-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "prism-mcp-server@20.22.4"
      ],
      "env": {
        "BRAVE_API_KEY": "<YOUR_BRAVE_API_KEY>",
        "GEMINI_API_KEY": "<YOUR_GEMINI_API_KEY>",
        "SUPABASE_URL": "<YOUR_SUPABASE_URL>",
        "SUPABASE_KEY": "<YOUR_SUPABASE_KEY>",
        "PRISM_USER_ID": "<YOUR_PRISM_USER_ID>",
        "GCP_PROJECT_ID": "<YOUR_GCP_PROJECT_ID>",
        "VERTEX_LOCATION": "<YOUR_VERTEX_LOCATION>",
        "VERTEX_DATA_STORE_ID": "<YOUR_VERTEX_DATA_STORE_ID>"
      }
    }
  }
}

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