# io.github.ONSBR/tiago-dados-abertos (pypi · mcp-tiago-dados-abertos)

MCP server que conecta agentes de IA aos dados abertos do ONS (Operador Nacional do Sistema)

- Trust score: 58/100 (low)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-22

## Components

- pypi · `mcp-tiago-dados-abertos`: 58/100 (this document), [markdown](https://verifymcp.io/servers/onsbr-tiago-dados-abertos/mcp-tiago-dados-abertos.md), [page](https://verifymcp.io/servers/onsbr-tiago-dados-abertos/mcp-tiago-dados-abertos)

## Channel facts

- Registry: `pypi`
- Package: `mcp-tiago-dados-abertos`
- Version: `1.1.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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 2026-09-22.

- **Supply Chain Security**: 50/100
  - Malware scan not yet available for this package.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs hatchling.build at install time, a recognised native-build step with no shell scripting around it.
  - 2 of 26 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 23/100
  - Repository check failed: no source repository is declared.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (Apache-2.0).
  - Actively maintained (last published 1 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 82/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 825 tokens (~165/item across 5 items; 4 tools + 1 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 60/100
  - Stability observed for 18 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **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**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the io.github.ONSBR/tiago-dados-abertos MCP server?

io.github.ONSBR/tiago-dados-abertos runs locally as a PyPI package, launched with uvx mcp-tiago-dados-abertos. 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 onsbr-tiago-dados-abertos -- uvx mcp-tiago-dados-abertos
```

### Cursor

```json
{
  "mcpServers": {
    "onsbr-tiago-dados-abertos": {
      "command": "uvx",
      "args": [
        "mcp-tiago-dados-abertos"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "onsbr-tiago-dados-abertos": {
      "command": "uvx",
      "args": [
        "mcp-tiago-dados-abertos"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add onsbr-tiago-dados-abertos -- uvx mcp-tiago-dados-abertos
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "onsbr-tiago-dados-abertos": {
      "type": "local",
      "command": [
        "uvx",
        "mcp-tiago-dados-abertos"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add onsbr-tiago-dados-abertos --command uvx --arg mcp-tiago-dados-abertos
```

### Hermes

```yaml
mcp_servers:
  onsbr-tiago-dados-abertos:
    command: "uvx"
    args: ["mcp-tiago-dados-abertos"]
```

### Netclaw

```json
{
  "McpServers": {
    "onsbr-tiago-dados-abertos": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "mcp-tiago-dados-abertos"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add onsbr-tiago-dados-abertos -t stdio -c uvx -a mcp-tiago-dados-abertos
```

### Other

```json
{
  "mcpServers": {
    "onsbr-tiago-dados-abertos": {
      "command": "uvx",
      "args": [
        "mcp-tiago-dados-abertos"
      ]
    }
  }
}
```

## 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.

### 2026-09-21 (score 58, −14)

- [security regression] Malware scan: pass → unverified

### 2026-09-20 (score 72, +15)

- [security regression] Stability: 0.50 → unverified
- [security regression] Tool safety: pass → unverified
- [security improvement] Malware scan: unverified → pass
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional regression] Schema quality: 100 → unverified
- [functional] Package version: 1.0.1 → 1.1.0

### 2026-09-18 (score 57, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 56, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-14 (score 55, −14)

- [security regression] Malware scan: pass → unverified

### 2026-09-12 (score 69, +16)

- [security improvement] Malware scan: unverified → pass

### 2026-09-11 (score 53, −15)

- [security regression] Malware scan: pass → unverified

### 2026-09-10 (score 68, +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.

## MCP tools (4)

### `buscar_dataset` (~262 tokens)

Filtra o catalogo por termo: ate 10 datasets dos dados abertos do ONS ranqueados por
palavra-chave e BM25 sobre os contratos.

Complemento de listar_datasets, nao a entrada padrao. O caminho normal e ler a listagem
inteira (listar_datasets ou o resource catalogo://datasets) e escolher pelo assunto e pelo
grao. Use buscar_dataset quando o catalogo for grande demais para ler de uma vez, ou para
localizar datasets por um termo especifico (sigla, nome de coluna, entidade).

Parametros:
    tema: A pergunta do usuario ou o assunto. A pergunta inteira ranqueia melhor que
          palavras-chave soltas; nao resuma.
    orgao: Opcional - filtra pelo orgao do dataset. Neste corpus o unico valor e 'ons'.

Retorno:
    Candidatos com RELEVANCIA em faixa (alta/media/fraca) e os termos que casaram. Quando o
    melhor candidato e fraco, o cabecalho diz "Nenhum dataset relevante": chame
    listar_datasets. Confirme sempre com descrever_dataset antes de gerar SQL.

Input parameters:

- `orgao`
- `tema` (string, required)

Output parameters:

- `result` (string)

### `listar_datasets` (~189 tokens)

Lista TODOS os datasets do catalogo, um por linha: nome, granularidade, perspectiva
temporal (verificado, programado, previsto ou cadastral) e uma frase de uso.

Comece por aqui: e a entrada padrao do fluxo. Leia a listagem, escolha pelo assunto E pelo
grao da pergunta (horario, diario ou mensal; verificado ou previsto) e chame
descrever_dataset com o nome exato antes de gerar SQL. Cerca de 4 mil tokens. O mesmo
conteudo esta no resource `catalogo://datasets`, que dispensa esta chamada quando fixado
no contexto.

Parametros:
    orgao: Opcional - filtra pelo orgao do dataset. Neste corpus o unico valor e 'ons'.

Fluxo recomendado: listar_datasets -> descrever_dataset -> gerar query -> executar_sql.

Input parameters:

- `orgao`

Output parameters:

- `result` (string)

### `descrever_dataset` (~152 tokens)

Retorna uma visao operacional formatada do contrato ODCS de um dataset do ONS.

Parametros:
    nome_dataset: Nome EXATO do dataset, como aparece em listar_datasets ou buscar_dataset.

Retorno:
    Visao formatada com schema, colunas (nomes e tipos), instrucoes de TRY_CAST,
    fewShotQueries de exemplo e portal URL do ONS (projecao dos campos operacionais
    do contrato, nao o YAML ODCS integral).

SEMPRE leia o contrato antes de gerar SQL — use os nomes de colunas exatos.
Cite o nome do dataset e o portal URL como fonte na resposta ao usuario.

Input parameters:

- `nome_dataset` (string, required)

Output parameters:

- `result` (string)

### `executar_sql` (~197 tokens)

Executa SQL DuckDB read-only sobre os dados abertos do ONS (S3) com paginacao.

Parametros:
    sql_query: Query SQL (SELECT ou WITH) baseada nas colunas reais do contrato.
               Somente leitura — DML/DDL sao bloqueados.
    limit: Maximo de linhas retornadas (default: 100).
    offset: Deslocamento para paginacao (default: 0).

Retorno:
    Linhas do resultado da query. Quando ha mais paginas disponiveis, o retorno
    indica que existem registros adicionais alem do limit.

IMPORTANTE: Use descrever_dataset antes de gerar SQL para obter nomes de colunas
exatos e tipos. Nunca chute nomes de colunas. Verifique a cobertura temporal no
contrato antes de filtrar por datas.

Input parameters:

- `limit` (integer)
- `offset` (integer)
- `sql_query` (string, required)

Output parameters:

- `result` (string)

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/onsbr-tiago-dados-abertos/mcp-tiago-dados-abertos#diagnostics

## Score history

- 2026-09-22: 58
- 2026-09-21: 58
- 2026-09-20: 72
- 2026-09-19: 57
- 2026-09-18: 57
- 2026-09-17: 56
- 2026-09-16: 56
- 2026-09-15: 55
- 2026-09-14: 55
- 2026-09-13: 69
- 2026-09-12: 69
- 2026-09-11: 53
- 2026-09-10: 68
- 2026-09-09: 67
- 2026-09-08: 52
- 2026-09-07: 64
- 2026-09-06: 64
- 2026-09-05: 64
- 2026-09-04: 64

## Common questions

### What is the io.github.ONSBR/tiago-dados-abertos MCP server?

io.github.ONSBR/tiago-dados-abertos is an MCP server listed in the public MCP registry as io.github.ONSBR/tiago-dados-abertos. MCP server que conecta agentes de IA aos dados abertos do ONS (Operador Nacional do Sistema). This page covers its PyPI package (mcp-tiago-dados-abertos).

### Is the io.github.ONSBR/tiago-dados-abertos MCP server safe to use?

io.github.ONSBR/tiago-dados-abertos scores 58 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 22 September 2026. 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 io.github.ONSBR/tiago-dados-abertos MCP server expose?

io.github.ONSBR/tiago-dados-abertos exposes 4 tools: buscar_dataset, listar_datasets, descrever_dataset, executar_sql. Their descriptions and schemas cost roughly 800 tokens of context every time the server is loaded.

### Is the io.github.ONSBR/tiago-dados-abertos MCP server still maintained?

io.github.ONSBR/tiago-dados-abertos is still listed as active in the MCP registry. We last reached this channel on 22 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the io.github.ONSBR/tiago-dados-abertos MCP server under?

io.github.ONSBR/tiago-dados-abertos declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- PyPI project: https://pypi.org/project/mcp-tiago-dados-abertos/
- Socket report: https://socket.dev/pypi/package/mcp-tiago-dados-abertos
- Changelog RSS feed: https://verifymcp.io/servers/onsbr-tiago-dados-abertos/mcp-tiago-dados-abertos.xml
- Changelog JSON feed: https://verifymcp.io/servers/onsbr-tiago-dados-abertos/mcp-tiago-dados-abertos.json
- HTML version of this page: https://verifymcp.io/servers/onsbr-tiago-dados-abertos/mcp-tiago-dados-abertos