# flatin.pt — Portuguese property taxes (remote · flatin.pt)

Portuguese property taxes: IMT on purchase and IMI rates for all 308 municipalities

- Trust score: 75/100 (medium)
- Change this week: +5
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-25

## Components

- remote · `flatin.pt`: 75/100 (this document), [markdown](https://verifymcp.io/servers/pt-flatin-property-taxes/flatin.md), [page](https://verifymcp.io/servers/pt-flatin-property-taxes/flatin)

## Channel facts

- Endpoint: `https://flatin.pt/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.3`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-25.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 70/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 689 tokens (~172/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 30/100
  - Stability observed for 9 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the flatin.pt — Portuguese property taxes MCP server?

flatin.pt — Portuguese property taxes is a hosted endpoint at https://flatin.pt/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http pt-flatin-property-taxes 'https://flatin.pt/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "pt-flatin-property-taxes": {
      "url": "https://flatin.pt/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "pt-flatin-property-taxes": {
      "type": "http",
      "url": "https://flatin.pt/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.pt-flatin-property-taxes]
url = "https://flatin.pt/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "pt-flatin-property-taxes": {
      "type": "remote",
      "url": "https://flatin.pt/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add pt-flatin-property-taxes --url 'https://flatin.pt/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  pt-flatin-property-taxes:
    url: "https://flatin.pt/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "pt-flatin-property-taxes": {
      "Transport": "http",
      "Url": "https://flatin.pt/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add pt-flatin-property-taxes -t streamable-http -u 'https://flatin.pt/mcp'
```

### Other

```json
{
  "mcpServers": {
    "pt-flatin-property-taxes": {
      "type": "http",
      "url": "https://flatin.pt/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-25 (score 75, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-24 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-22 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-20 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-19 (score 72, +2)

- [security improvement] HSTS header: fail → pass

### 2026-09-18 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-17 (score 69, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-16 (score 69)

First indexed and scored.

## MCP tools (4)

### `imt_calculate` (~266 tokens)

Calculate IMT and stamp duty on a home purchase

What buying a home in Portugal costs on top of the price: IMT (property transfer tax), Imposto do Selo (stamp duty) and an estimate for the deed and registration. Official 2026 tables, including the reduced IMT table and the stamp duty deduction for buyers aged 35 or under. Returns amounts in cents and formatted in euros, with the source of the tables.

Input parameters:

- `buyer_is_young` (boolean): The buyer is 35 or under on the date of the deed, is buying their first own permanent home, is not an IRS dependant and has owned no residential property in the previous three years. Applies the redu…
- `primary_home` (boolean): The buyer's own permanent home (habitação própria e permanente). Default: true
- `territory` (string): Mainland Portugal (continente) or the Azores and Madeira (regioes_autonomas). Default: continente
- `value` (string, required): Property price in euros, e.g. 250000 or 250000.50

### `imi_rate` (~102 tokens)

Look up the IMI rate of a municipality

The yearly property tax (IMI) rate in one Portuguese municipality, by name or four-digit code. Collected from the Autoridade Tributária portal and checked line by line for all 308 municipalities. Where a municipality sets no single rate (it is set per parish), the answer says so instead of returning zero.

Input parameters:

- `municipality` (string, required): Municipality name in Portuguese (Porto, Lisboa, Vila Nova de Gaia) or its four-digit code (1312)

### `imi_annual_cost` (~125 tokens)

Calculate the yearly IMI from the taxable value

Yearly IMI for an urban property (prédio urbano) with a given taxable value (VPT) in one municipality, at the municipality's urban rate. VPT is the tax authority's valuation, not the purchase price: ask the user for it instead of using the price.

Input parameters:

- `municipality` (string, required): Municipality name in Portuguese (Porto, Lisboa, Vila Nova de Gaia) or its four-digit code (1312)
- `vpt` (string, required): Valor Patrimonial Tributário — the taxable value of the property in euros. Not the purchase price

### `request_consultation` (~90 tokens)

Get the consultation form link and consent text

How to put the user in touch with a licensed real estate agency in Portugal: returns the form link and the GDPR (RGPD) consent text in the user's language. The request is submitted by the person, not on their behalf.

Input parameters:

- `language` (string): The user's language: pt, en, ru, ua, de, fr, nl (uk is accepted too). Default: en

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/pt-flatin-property-taxes/flatin#diagnostics

## Score history

- 2026-09-25: 75
- 2026-09-24: 75
- 2026-09-23: 74
- 2026-09-22: 74
- 2026-09-21: 73
- 2026-09-20: 73
- 2026-09-19: 72
- 2026-09-18: 70
- 2026-09-17: 69
- 2026-09-16: 69

## Common questions

### What is the flatin.pt — Portuguese property taxes MCP server?

flatin.pt — Portuguese property taxes is an MCP server listed in the public MCP registry as pt.flatin/property-taxes. Portuguese property taxes: IMT on purchase and IMI rates for all 308 municipalities. This page covers its hosted endpoint (https://flatin.pt/mcp).

### Is the flatin.pt — Portuguese property taxes MCP server safe to use?

flatin.pt — Portuguese property taxes scores 75 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the flatin.pt — Portuguese property taxes MCP server expose?

flatin.pt — Portuguese property taxes exposes 4 tools: imt_calculate, imi_rate, imi_annual_cost, request_consultation. Their descriptions and schemas cost roughly 583 tokens of context every time the server is loaded.

### Does the flatin.pt — Portuguese property taxes MCP server require authentication?

No. We connected to flatin.pt — Portuguese property taxes without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the flatin.pt — Portuguese property taxes MCP server still maintained?

flatin.pt — Portuguese property taxes is still listed as active in the MCP registry. We last reached this channel on 25 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://flatin.pt/mcp
- Repository: https://gitlab.com/flatin-pt-group/mcp
- Website: https://flatin.pt/en/tools/api-and-data/
- Changelog RSS feed: https://verifymcp.io/servers/pt-flatin-property-taxes/flatin.xml
- Changelog JSON feed: https://verifymcp.io/servers/pt-flatin-property-taxes/flatin.json
- HTML version of this page: https://verifymcp.io/servers/pt-flatin-property-taxes/flatin