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ObraAberta MCP server

Which servers in the official MCP registry are ObraAberta's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-21

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Whose server it is
  • Registry namebr.com.obraaberta/obraabertaverified in the MCP registry

The registry name sits under obraaberta.com.br. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-21
  • Stateanswerschecked 2026-10-21
  • Tools11
  • Server calls itselfobra-aberta
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-21 the server answered initialize and tools/list without a sign-in. First answer in 115 ms.

Should an agent connect itSkip it
  • Its tools do none of the product's use cases we checked: follow stages and updates of a purchased construction project; organise condominium documents and decisions in one workspace.
  • Checked on 4 of the 7 days it takes to judge reliability.

Once connected

  • Parameters are untyped or undescribed in 7 of 11 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 4, the first on 2026-10-21
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 4 so far
  • What an agent can do with it0 of 2 use cases
  • Answeredmeasuring4 of the 7 daily checks it takes to print a share
  • Median first answer1853 ms
  • Space in an agent's context≈ 1,485 tokensthe definitions of all its tools (11), which an agent carries on every turn
  • Tool definitionsB · 89 of 100
  • Typed results0 of 11 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 7 of 11

What an agent can do with it

  • not sure · research a construction project before buying into it
  • cannot · follow stages and updates of a purchased construction project
  • cannot · organise condominium documents and decisions in one workspace

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers11 tools · read 2026-10-21
  • search_projects

    Busca empreendimentos publicados na ObraAberta por texto, cidade, estado, status, faixa de preço, dormitórios e amenidades. Somente dados públicos.

  • get_project

    Consulta a ficha pública de um empreendimento da ObraAberta por slug ou UUID, com linha do tempo resumida e avaliações moderadas.

  • find_projects_nearby

    Lista empreendimentos publicados dentro de um raio a partir de uma latitude e longitude. Somente obras com coordenada registrada.

  • get_project_timeline

    Consulta a linha do tempo pública de um empreendimento: etapas, percentuais e evidências já aprovadas na moderação.

  • get_project_ratings

    Consulta o resumo e as avaliações públicas já moderadas de um empreendimento. Nenhum dado pessoal do autor é retornado.

  • get_project_nearby_services

    Lista escolas, hospitais, transporte e comércio próximos a um empreendimento, a partir do OpenStreetMap. Exige atribuição ODbL na exibição.

  • list_builders

    Lista construtoras e incorporadoras do diretório público da ObraAberta. Não retorna dados cadastrais internos nem contatos pessoais.

  • get_builder

    Consulta a ficha pública de uma construtora e os indicadores públicos disponíveis, por slug ou UUID.

  • get_builder_projects

    Lista os empreendimentos publicados vinculados a uma construtora do diretório público da ObraAberta.

  • get_public_sources

    Lista as fontes públicas usadas pela ObraAberta, com a natureza de cada uma (oficial, pública, colaborativa, OpenStreetMap) e suas limitações.

  • health

    Verifica se a API pública da ObraAberta está disponível e qual versão responde.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "obraaberta": {
      "type": "http",
      "url": "https://obraaberta.com.br/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http obraaberta https://obraaberta.com.br/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://obraaberta.com.br/mcp as a custom connector in the settings.

OpenAPI spec

37 paths, read 2026-10-21. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.