Claude Prompt Optimizer MCP Server

pcp-engine

Scores, compiles & optimizes prompts for any LLM. Zero AI calls inside. Freemium.

2 14/wk 3 tools GitHub npm

No known CVEs

No license

Actively maintained

Last commit 8d ago

Works with most clients

Transport: stdio, sse

3 tools · ~278 tok

Grade A · 0.1% of 200K ctx

MCPpedia last refreshed this data 3h ago

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Claude Prompt Optimizer MCP Server is an MCP server that scores, compiles & optimizes prompts for any LLM. Zero AI calls inside. Freemium. Its tool list has not been published yet over stdio and sse, requires no API key, and scores 87/100 on MCPpedia's security, maintenance and efficiency rubric.

AI / ML Developer Tools

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "prompt-optimizer": {
      "args": [
        "-y",
        "pcp-engine"
      ],
      "command": "npx"
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-rishiatlan-claude-prompt-optimizer)](https://mcppedia.org/s/io-github-rishiatlan-claude-prompt-optimizer)

Read me

What Claude Prompt Optimizer MCP Server does

The control plane for AI prompts. Score, enforce policy, lock config, and audit every prompt decision. Free tier included.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'pcp-engine' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

87/100across 5 weighted dimensions

How we score →

0255075100

−13

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked pcp-engine against OSV.dev.

Inventory

Tools (3)

Click any tool to inspect its schema.

~278 tokens total

Community

Reviews

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Frequently Asked Questions

Is Claude Prompt Optimizer MCP Server safe to use?: Claude Prompt Optimizer MCP Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install Claude Prompt Optimizer MCP Server?: Claude Prompt Optimizer MCP Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Claude Prompt Optimizer MCP Server do?: Claude Prompt Optimizer MCP Server provides 3 tools: optimize_prompt, refine_prompt, approve_prompt. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Claude Prompt Optimizer MCP Server?: Claude Prompt Optimizer MCP Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse transport.
Is Claude Prompt Optimizer MCP Server actively maintained?: Claude Prompt Optimizer MCP Server is actively maintained — last commit was 8 days ago. It has 2 GitHub stars.

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Community

Discussion

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Frequently Asked Questions

Is Claude Prompt Optimizer MCP Server safe to use?

Claude Prompt Optimizer MCP Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install Claude Prompt Optimizer MCP Server?

Claude Prompt Optimizer MCP Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can Claude Prompt Optimizer MCP Server do?

Claude Prompt Optimizer MCP Server provides 3 tools: optimize_prompt, refine_prompt, approve_prompt. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Claude Prompt Optimizer MCP Server?

Claude Prompt Optimizer MCP Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse transport.

Is Claude Prompt Optimizer MCP Server actively maintained?

Claude Prompt Optimizer MCP Server is actively maintained — last commit was 8 days ago. It has 2 GitHub stars.