Claude Prompt Optimizer MCP Server

The control plane for AI prompts. Score, enforce policy, lock config, and audit every prompt decision. Free tier included. It runs locally over stdio via the published package.

People connecting AI & ML tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-08-17 · ★ 2 · #55 OF 95 MAINTAINED AI & ML · VERIFIED 2026-08-25

NOASSERTION · TypeScript servers · how we verify → /methodology

01 · Install Claude Prompt Optimizer

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add rishiatlan-claude-prompt-optimizer-mcp -- npx -y claude-prompt-optimizer-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "rishiatlan-claude-prompt-optimizer-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "claude-prompt-optimizer-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license no standard license detected - usage rights unclear; check the repo before commercial use

npm package claude-prompt-optimizer-mcp - unscoped; check the name against the project README before installing

registry namespace io.github.rishiatlan is GitHub-verified and matches the repo owner

03 · What Claude Prompt Optimizer can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v5.3.4 · 2026-06-18

Security release: dependency remediation and audit cleanup.\n\n- Refreshed vulnerable root transitive dependencies behind the MCP SDK, including hono, @hono/node-server, fast-uri, qs, ip-address, and…

v5.3.2 · 2026-03-06

What Changed · Enterprise Console (admin.html) · Fixed nav structure to match standard pattern (was using <ul>/<li> instead of <div>/<a>) · Corrected audit file path: audit.jsonl → audit.log (matches actual…

v5.3.1 · 2026-03-06

Honest cost comparison - Fixed savings display that clamped negative values to 0%. When routing to a pricier model (e.g., Claude Sonnet vs GPT-4o baseline), the CLI and MCP now honestly show "X% more expensive" instead…

04 · Who maintains Claude Prompt Optimizer

claude-prompt-optimizer is maintained by rishiatlan. It's the only MCP server we track from this author; the repo dates to Feb 2026.

05 · Facts

repository: github.com/rishiatlan/claude-prompt-optimizer-mcp
category: AI & ML - ranked #55 of 95 actively-maintained AI & ML servers as of 2026-08-25.
release cadence: 1 release in the last 90 days (latest 2026-06-18)
registry: io.github.rishiatlan/claude-prompt-optimizer (active, first published 2026-02-27)
packages: npm:claude-prompt-optimizer-mcp

06 · Claude Prompt Optimizer FAQ

What is Claude Prompt Optimizer?

The control plane for AI prompts. Score, enforce policy, lock config, and audit every prompt decision. Free tier included. It runs locally over stdio via the published package.

Is Claude Prompt Optimizer still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-17 and it shipped 1 release in the last 90 days. We re-verify nightly.

How do I install Claude Prompt Optimizer?

Run `npx -y claude-prompt-optimizer-mcp`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does Claude Prompt Optimizer run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Claude Prompt Optimizer

Alternatives to Claude Prompt Optimizer

Maintained AI & ML servers if Claude Prompt Optimizer isn't the fit.

Pairs well with

Servers that cover what Claude Prompt Optimizer doesn't - only shown when the pairing reason fits the companion.

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