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CasitaTax MCP Server

by casitatax Your server? Claim it
answering

CasitaTax is answering right now. Last checked 7 min ago. It exposes 3 tools.

Spanish non-resident tax on a home in Spain: Modelo 210 estimate, deadlines, town cadastral data

Uptime history 14 days of history
14 days agonow
100.0%
Uptime 24h
91 of 91 checks
3
Tools
read from the server
231 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check CasitaTax 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 7 min ago.

run in your terminal
claude mcp add modelo-210 --transport http https://casitatax.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://casitatax.com/mcp
~/.codex/config.toml
[mcp_servers.modelo-210]
url = "https://casitatax.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "modelo-210": {
      "url": "https://casitatax.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "modelo-210": {
      "type": "http",
      "url": "https://casitatax.com/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.

estimate
estimate_modelo_210
Use this when a non-resident owner of a home in Spain asks how much Modelo 210 (Spanish non-resident income tax on the property) they owe for a tax year. Works out each owner's tax on the imputed income of the days the home wasn't let and on the rent, as CasitaTax's simulator does, and returns the method, the sources and a link that opens the simulator with the same answers.
modelo
modelo_210_deadlines
Use this when someone asks when a Spanish Modelo 210 (non-resident income tax) is due for a home in Spain: not let, let all year, let part of the year, or sold. Returns each return's filing window, the direct debit's last day, whether the window is open today, what filing late costs, and the sources (Orden HAC/623/2026 changed the windows from tax year 2026).
town
town_cadastral_data
Use this when someone needs to know about a Spanish town's cadastral values: the year of its last general revaluation, whether that means the 1.1% or the 2% imputed-income rate for a tax year (pass the revised value to estimate_modelo_210), and its urban IBI rate on homes. From the Catastro's statistics and the Ministerio de Hacienda's open data; País Vasco and Navarra aren't covered.

Endpoints

URLTransportStateLatencyChecked
https://casitatax.com/mcp streamable-http answering 245 ms 7 min ago

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CasitaTax — questions

Answers built from our own checks of this server.

What can CasitaTax do?
It exposes 3 tools, read directly from the server on our last check. Among them: estimate_modelo_210, modelo_210_deadlines, town_cadastral_data. 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 CasitaTax 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 231 ms. The bar chart above shows every period we have measured.
How do I connect CasitaTax?
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.
Does CasitaTax need an API key?
No. CasitaTax 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 CasitaTax?
It answers our handshake in 231 ms on average, which is faster than 62% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.