generated: '2026-09-16'
method: probed
source: https://flatin.pt/api/changelog.json
humanURL: https://flatin.pt/status/#changelog
scheme: dated
current_version: 1.0.0
description: >-
  Dated change log for the flatin.pt REST API and MCP server, read from the provider's
  machine-readable API Commons Change Log. No breaking changes recorded to date.
entries:
  - date: '2026-09-16'
    name: Discovery documents, status page, English by default
    breaking: false
    tags: [discovery, status, docs]
    highlights: Published apis.json, RFC 9727 api-catalog, API Onboarding Descriptor, plans.json, rate-limits.json, spectral.yaml, security.txt, llms.txt and a live status page; OpenAPI also served at /openapi.json.
  - date: '2026-09-16'
    name: Open-source clients
    breaking: false
    tags: [mcp, wordpress, chrome, open-source]
    highlights: Published the MCP stdio bridge (flatinpt/mcp), the WordPress plugin (flatinpt/wp) and the Chrome extension (flatinpt/chrome); all call this API.
  - date: '2026-09-16'
    name: MCP server listed in the official MCP Registry
    breaking: false
    tags: [mcp, registry]
    highlights: The remote server https://flatin.pt/mcp is published in registry.modelcontextprotocol.io as pt.flatin/property-taxes.
  - date: '2026-09-16'
    name: All machine answers in English
    breaking: false
    tags: [mcp, rest, i18n]
    highlights: MCP tool descriptions/results, REST errors and 429 refusals in English; request_consultation consent text still localized.
  - date: '2026-09-15'
    name: Rate limits
    breaking: false
    tags: [rest, mcp, rate-limits]
    highlights: Per-address limits on REST and MCP; refused requests get HTTP 429 with Retry-After.
  - date: '2026-09-15'
    name: MCP protocol version is checked
    breaking: false
    tags: [mcp]
    highlights: Requests declaring an unsupported MCP protocol revision get HTTP 400 with the list of supported revisions.
  - date: '2026-09-15'
    name: IMI rate history
    breaking: false
    tags: [rest, imi]
    highlights: GET /api/v1/imi/rates/{codigo} returns a history field — the urban rate by tax year and its movement.
  - date: '2026-09-13'
    name: Public REST API v1 and MCP server
    breaking: false
    tags: [rest, mcp, imi, imt]
    highlights: IMI rates for all 308 municipalities (JSON + CSV), IMT/stamp duty calculation, and MCP tools imt_calculate, imi_rate, imi_annual_cost, request_consultation. No key, no sign-up.