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Claude Prompt Optimizer MCP Server

by rishiatlan Your server? Claim it
local only

Claude Prompt Optimizer runs on your own machine — the client starts it, so there is no endpoint to ping. 31 installs a week from npm. Last commit 21 Sep 2026.

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

Installs per day peak 31 · avg 8 · -52% w/w
a month agotoday
31
Installs / week
npm · claude-prompt-optimizer-mcp
2
Stars
0 open issues
21 Sep 2026
Last commit
0 releases in 90 days
Elastic-2.0
License
TypeScript

What changed 45

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 August 2026. No other catalogue keeps this.

22 Sep the owner changed
21 Sep the owner changed
20 Sep the owner changed
19 Sep the owner changed
18 Sep the owner changed
17 Sep the owner changed
16 Sep the owner changed
15 Sep the owner changed
14 Sep the owner changed
13 Sep the owner changed
and 35 more, back to 9 August 2026

What the code does

We read the source, 4 d ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Package points at a different repository rishiatlan/claude-prompt-optimizer-mcp
пакет claude-prompt-optimizer-mcp ссылается на rishiatlan/prompt-optimizer-mcp

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add claude-prompt-optimizer -- npx -y claude-prompt-optimizer-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "claude-prompt-optimizer": {
      "args": [
        "-y",
        "claude-prompt-optimizer-mcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.claude-prompt-optimizer]
command = "npx"
args = ["-y", "claude-prompt-optimizer-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "claude-prompt-optimizer": {
      "args": [
        "-y",
        "claude-prompt-optimizer-mcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "claude-prompt-optimizer": {
      "args": [
        "-y",
        "claude-prompt-optimizer-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: PROMPT_OPTIMIZER_PRO (Set to 'true' to enable Pro tier via environment variable (alternative to license key)), PROMPT_OPTIMIZER_LOG_LEVEL (Log verbosity level: debug, info, warn, error). The author declared them in the registry entry; get the values from the project itself.

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Claude Prompt Optimizer — questions

Answers built from our own checks of this server.

Why is there no uptime for Claude Prompt Optimizer?
Claude Prompt Optimizer runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package claude-prompt-optimizer-mcp was installed 31 times last week.
How do I connect Claude Prompt Optimizer?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls claude-prompt-optimizer-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use Claude Prompt Optimizer?
The npm package claude-prompt-optimizer-mcp was installed 31 times in the last week. Week over week that is -52%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Claude Prompt Optimizer open source?
No, and the distinction matters: its licence is declared as Elastic-2.0. That makes it source-available — you can read the code, but the terms are the author's own, not one of the recognised open-source licences. Read them before you build on it.