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PromptRefiner MCP Server

answering

PromptRefiner is answering right now. Last checked 1 min ago. It exposes 1 tools.

Generative prompt optimizer for Midjourney, Sora, and DALL-E.

Uptime history 91 days of history · worst day 49%
91 days agonow
100.0%
Uptime 24h
92 of 92 checks
1
Tools
read from the server
105 ms
Response time
average over 24h
authentication required
Access
sse

Nothing serious here today

Today is the operative word: we check PromptRefiner every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

run in your terminal
claude mcp add prompt-refiner --transport sse https://prompt-refiner-mcp.vercel.app/api/mcp
Settings → Connectors → Add custom connector, then paste this address
https://prompt-refiner-mcp.vercel.app/api/mcp
~/.codex/config.toml
[mcp_servers.prompt-refiner]
url = "https://prompt-refiner-mcp.vercel.app/api/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "prompt-refiner": {
      "url": "https://prompt-refiner-mcp.vercel.app/api/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "prompt-refiner": {
      "type": "sse",
      "url": "https://prompt-refiner-mcp.vercel.app/api/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

refine
refine
Stateless MCP micro-saas gateway for prompt-refiner-mcp — /api/refine endpoint. Fee: $0.02 USDC via x402.

Endpoints

URLTransportStateLatencyChecked
https://prompt-refiner-mcp.vercel.app/api/mcp sse needs auth 91 ms 1 min ago

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PromptRefiner — questions

Answers built from our own checks of this server.

What can PromptRefiner do?
It exposes 1 tools, read directly from the server on our last check. Among them: refine. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is PromptRefiner working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 105 ms. The bar chart above shows every period we have measured.
How do I connect PromptRefiner?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You will need your own credentials: it refuses anonymous clients.
Does PromptRefiner need an API key?
Yes. Every time we knock, PromptRefiner answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.
How fast is PromptRefiner?
It answers our handshake in 105 ms on average, which is faster than 90% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.