Pqs MCP Server

by onchainaiintelio.github.OnChainAIIntel/pqs-mcp-serverv1.4.0

PQS scores any prompt before the model runs. 8 dimensions. 5 frameworks. Pre-flight, not post-hoc.

2Node.jsstdioremoteofficial registry

context tax

queued

security

queued

cold start

queued

freshness

Slowing5mo ago

Install Pqs MCP server

claude mcp add pqs -e PQS_API_KEY='<pqs-api-key>' -- npx -y pqs-mcp-server

{
  "mcpServers": {
    "pqs": {
      "command": "npx",
      "args": [
        "-y",
        "pqs-mcp-server"
      ],
      "env": {
        "PQS_API_KEY": "<pqs-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "pqs": {
      "command": "npx",
      "args": [
        "-y",
        "pqs-mcp-server"
      ],
      "env": {
        "PQS_API_KEY": "<pqs-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "pqs": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "pqs-mcp-server"
      ],
      "env": {
        "PQS_API_KEY": "<pqs-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "pqs": {
      "command": "npx",
      "args": [
        "-y",
        "pqs-mcp-server"
      ],
      "env": {
        "PQS_API_KEY": "<pqs-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
PQS_API_KEY	—	yes	Your PQS Pro API key (pqs_live_xxx) for optimize_prompt. score_prompt is free and requires no key. Subscribe at promptqualityscore.com/pricing.

Remote endpoints

streamable-httphttps://promptqualityscore.com/api/mcp

Freshness

Slowing — last maintenance signal 5mo ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-05-27 · 5mo ago · GitHub
Latest release
2026-05-26 · 5mo ago · GitHub · v1.4.0
Package published
no data · npm/PyPI
Registry entry updated
2026-05-27 · 5mo ago · official registry · v1.4.0

FAQ

›How do I install the Pqs MCP server in Claude Code?

Run: claude mcp add pqs -e PQS_API_KEY='<pqs-api-key>' -- npx -y pqs-mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Pqs require an API key?

Yes. It expects PQS_API_KEY, of which 1 is a secret.

›Can I use Pqs as a remote (hosted) MCP server?

Yes — it offers both a hosted endpoint and a local stdio package.

›Is Pqs in the official MCP registry?

Yes, as io.github.OnChainAIIntel/pqs-mcp-server.