# flatin.pt

**Canonical:** https://apis.io/providers/flatin-pt/  
**Website:** https://flatin.pt/en/  
**APIs profiled:** 1

Portuguese property-tax APIs providing keyless access to IMI rates for all 308 municipalities and IMT/stamp duty purchase-cost calculations, sourced from official Autoridade Tributária tables. flatin.pt serves the same numbers as a REST API with an OpenAPI schema, a remote MCP server exposing four agent tools, an llms.txt for agent discovery, and a CC BY 4.0 open CSV dataset — no key and no sign-up.

## Kin Score — 59.4 / 100 (strong)

Scored 2026-10-04 under rubric 0.23.0. Trend: flat (-4.0 from 63.4).

| Facet | Score |
|---|---|
| Discoverability | 75.0 |
| Contract Quality | 47.1 |
| Contract Governance | 53.6 |
| Operational Transparency | 65.8 |
| Developer Ergonomics | 63.7 |
| Access Clarity | 52.6 |

Regulatory layer — **Government & Public Sector**: 30.4 (matched via tags).

## Agent readiness — 31.8 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | derived |
| Error Semantics | verified |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## APIs (1)

- **flatin.pt Public API** — Keyless public endpoints: IMI rates and IMT calculation.

## MCP servers (1)

- **flatin.pt Property Taxes MCP** — Remote Model Context Protocol server for Portuguese property taxes — IMT/stamp duty on a purchase and IMI rates for all 308 municipalities. Keyless, stateless Streamable HTTP.

## Security (3)

- **Flatin Pt Authentication** — 1 scheme
- **Flatin Pt Domain Security** — TLSv1.3 · DMARC
- **Flatin Pt Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Flatin Pt Plans Pricing**

## Tags

Real Estate, Property Tax, Tax, IMI, IMT, Stamp Duty, Portugal, Open Data, Government Data, Fiscal Data, MCP, AI Agents

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/flatin-pt/). Scores are computed from the provider's own public artifacts under a published rubric.