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Directory / CasitaTax
CasitaTax
by casitatax.com · https://casitatax.com/mcp
Spanish non-resident tax on a home in Spain: Modelo 210 estimate, deadlines, town cadastral data
11 of 11 checks · 30 Oct 2026
Is CasitaTax MCP server safe?
- No hidden instructions were found in its tool descriptions.
- Its error messages showed no secrets or internal details.
- All 3 of its tools are labeled read-only.
- Overall it scored 100/100 on 30 Oct 2026.
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What it can do
3 tools, in the server's own words.
estimate_modelo_210read-onlyUse 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.
modelo_210_deadlinesread-onlyUse 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.
town_cadastral_dataread-onlyUse 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% im…
Test results
Safe mode: only tools labeled read-only were run. How the test works
- ✓ConnectsConnected in 303 mspass
- ✓Ready for the newest MCP versionUses the latest MCP version (2026-07-28)pass
- ✓Lists its toolsFound 3 toolspass
- ✓Every tool is describedAll 3 tools and their inputs are describedpass
- ✓Tools are labeled safe or dangerousEvery tool has a safety labelpass
- ✓No hidden instructionsNo hidden instructions found in tool descriptionspass
- ✓Tools work with good inputspass
All good
- ✓estimate_modelo_210: Worked (68 ms)
- ✓modelo_210_deadlines: Worked (126 ms)
- ✓town_cadastral_data: Answered with an error, probably because of our sample input: Give the town and its province (e.g. town Marbella, province Málaga), or the town's 5-digit INE code.
- ✓Bad inputs give a clean errorpass
All good
- ✓estimate_modelo_210: Refused missing required input "occupancy" with a clear error
- ✓estimate_modelo_210: Refused wrong type for "occupancy" with a clear error
- ✓modelo_210_deadlines: Refused missing required input "situation" with a clear error
- ✓modelo_210_deadlines: Refused wrong type for "situation" with a clear error
- ✓town_cadastral_data: Refused wrong type for "town" with a clear error
- ✓Fast enoughpass
All good
- ✓Connecting took 303 ms
- ✓Listing tools took 107 ms
- ✓Average tool answer: 73 ms
- ✓modelo_210_deadlines: Slowest tool: modelo_210_deadlines (126 ms)
- ✓No secrets leakedChecked 6 error messages: no secrets or internal detailspass
- ✓Follows MCP best practices (not scored yet)Tool names, safety labels and tool list size follow the MCP guidepass
- –Tools work togetherNo tool's answer could be fed into another tool, so there were no chains to test (not counted either way)not tested
Test it yourself
Free and open source. Same checks, same score.
npx qamcp-cli https://casitatax.com/mcpShow this score on GitHub
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[](https://qamcp.dev/s/com-casitatax-modelo-210.html)Score over time
- 30 Oct 2026100
One test so far. New tests will show here.
Reviews
Coming soon: reviews from people who use CasitaTax, signed in with GitHub, one per person. Reviews never change the score.
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