CAZ Cost MCP Server

by rowb-caz-cost Your server? Claim it

answering

CAZ Cost is answering right now. Last checked 12 min ago. It exposes 3 tools.

UK Clean Air Zone daily charges by council, per vehicle class, and what a trip costs.

Uptime history 8 days of history

8 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

594 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check CAZ Cost 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 12 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add zones --transport http https://caz-cost.rowb.app/mcp

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

{
  "mcpServers": {
    "zones": {
      "url": "https://caz-cost.rowb.app/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.zones]
url = "https://caz-cost.rowb.app/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "zones": {
      "url": "https://caz-cost.rowb.app/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "zones": {
      "url": "https://caz-cost.rowb.app/mcp"
    }
  }
}

Available tools 3

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

trip

trip_cost

Cost one trip through a zone: daily rate x days, plus the penalty if it went unpaid. Returns chargeable=false when that vehicle class is not charged, and lists the zones where it would be.

zone

zone_charges

Get one zone by id: its daily charge for each vehicle class, its notes, its penalty figures and the source URLs the numbers came from.

zones

list_zones

List every UK Clean Air Zone with the daily charge each council publishes, per vehicle class, plus the London Congestion Charge and ULEZ which are separate schemes.

Endpoints

URL	Transport	State	Latency	Checked
https://caz-cost.rowb.app/mcp	streamable-http	answering	576 ms	12 min ago

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CAZ Cost — questions

Answers built from our own checks of this server.

What can CAZ Cost do?

It exposes 3 tools, read directly from the server on our last check. Among them: list_zones, trip_cost, zone_charges. 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 CAZ Cost 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 594 ms. The bar chart above shows every period we have measured.

How do I connect CAZ Cost?

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 is a remote server, so there is nothing to install — the client connects to the address.

Does CAZ Cost need an API key?

No. CAZ Cost completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is CAZ Cost?

It answers our handshake in 594 ms on average, which is faster than 19% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.