Prompt-cache prefix guardian MCP Server

by textforagents Your server? Claim it

answering

Prompt-cache prefix guardian is answering right now. Last checked 7 min ago.

Cache-bust forensics + TTL-fit verdicts: names the field that busts your prompt cache.

Uptime history 70 hours of history

70 hours agonow

100.0%

Uptime 24h

91 of 91 checks

—

Tools

hidden behind auth

349 ms

Response time

average over 24h

authentication required

Access

streamable-http

Nothing serious here today

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

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add prompt-cache-prefix-guardian --transport http https://textforagents.com/products/prompt-cache-prefix-guardian/mcp

Settings → Connectors → Add custom connector, then paste this address

https://textforagents.com/products/prompt-cache-prefix-guardian/mcp

~/.codex/config.toml

[mcp_servers.prompt-cache-prefix-guardian]
url = "https://textforagents.com/products/prompt-cache-prefix-guardian/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "prompt-cache-prefix-guardian": {
      "url": "https://textforagents.com/products/prompt-cache-prefix-guardian/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "prompt-cache-prefix-guardian": {
      "type": "http",
      "url": "https://textforagents.com/products/prompt-cache-prefix-guardian/mcp"
    }
  }
}

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

Endpoints

URL	Transport	State	Latency	Checked
https://textforagents.com/products/prompt-cache-prefix-guardian/mcp	streamable-http	needs auth	362 ms	7 min ago

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Prompt-cache prefix guardian — questions

Answers built from our own checks of this server.

Why is there no tool list for Prompt-cache prefix guardian?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is Prompt-cache prefix guardian working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 349 ms. The bar chart above shows every period we have measured.

How do I connect Prompt-cache prefix guardian?

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 Prompt-cache prefix guardian need an API key?

Yes. Every time we knock, Prompt-cache prefix guardian 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 Prompt-cache prefix guardian?

It answers our handshake in 349 ms on average, which is faster than 44% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.