# Brasil Data (pay-per-call via x402) (remote · brasil-data-x402.wagner-proc.workers.dev)

Brazil CNPJ, CEP, Selic/IPCA/PTAX, holidays, banks/ISPB for agents. Pay per call in USDC (x402).

- Trust score: 73/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `brasil-data-x402.wagner-proc.workers.dev`: 73/100 (this document), [markdown](https://verifymcp.io/servers/dev-workers-wagner-proc-brasil-data-x402-brasil-data/brasil-data-x402.md), [page](https://verifymcp.io/servers/dev-workers-wagner-proc-brasil-data-x402-brasil-data/brasil-data-x402)

## Channel facts

- Endpoint: `https://brasil-data-x402.wagner-proc.workers.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.0`

## 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 2026-11-05.

- **Endpoint Security**: 46/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 8 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 406, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - 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**: 78/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1316 tokens (~146/item across 9 items; 8 tools + 1 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 93/100
  - Stability observed for 28 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 97/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 91% 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 8 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 10 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 Brasil Data (pay-per-call via x402) MCP server?

Brasil Data (pay-per-call via x402) is a hosted endpoint at https://brasil-data-x402.wagner-proc.workers.dev/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 dev-workers-wagner-proc-brasil-data-x402-brasil- 'https://brasil-data-x402.wagner-proc.workers.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "dev-workers-wagner-proc-brasil-data-x402-brasil-": {
      "url": "https://brasil-data-x402.wagner-proc.workers.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "dev-workers-wagner-proc-brasil-data-x402-brasil-": {
      "type": "http",
      "url": "https://brasil-data-x402.wagner-proc.workers.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.dev-workers-wagner-proc-brasil-data-x402-brasil-]
url = "https://brasil-data-x402.wagner-proc.workers.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-workers-wagner-proc-brasil-data-x402-brasil-": {
      "type": "remote",
      "url": "https://brasil-data-x402.wagner-proc.workers.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add dev-workers-wagner-proc-brasil-data-x402-brasil- --url 'https://brasil-data-x402.wagner-proc.workers.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  dev-workers-wagner-proc-brasil-data-x402-brasil-:
    url: "https://brasil-data-x402.wagner-proc.workers.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "dev-workers-wagner-proc-brasil-data-x402-brasil-": {
      "Transport": "http",
      "Url": "https://brasil-data-x402.wagner-proc.workers.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add dev-workers-wagner-proc-brasil-data-x402-brasil- -t streamable-http -u 'https://brasil-data-x402.wagner-proc.workers.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "dev-workers-wagner-proc-brasil-data-x402-brasil-": {
      "type": "http",
      "url": "https://brasil-data-x402.wagner-proc.workers.dev/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.

### 2026-11-04 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-31 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-28 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-26 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-24 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-22 (score 67, +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.

### 2026-10-20 (score 66, +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.

## MCP tools (8)

### `cnpj_lookup` (~259 tokens)

Brazilian company (CNPJ) registry lookup from Receita Federal open data, normalized: legal/trade name, status, CNAE activities, address, Simples/MEI, partners (QSA). Supports alphanumeric CNPJ. Price: $0.01 USDC per call via x402; first call per tool per day is free. Example response: {"cnpj":"19131243000197","legal_name":"OPEN KNOWLEDGE BRASIL","trade_name":"REDE PELO CONHECIMENTO LIVRE","status":{"description":"ATIVA","since":"2013-10-03"},"opened_on":"2013-10-03","main_activity":{"cnae":"9430800","description":"Atividades de associações de defesa de direitos sociais"},"address":{"street":"AVENIDA PAULISTA 37","district":"BELA VISTA","city":"SAO PAULO","uf":"SP","cep":"01311902"},"simples_nacional":{"opted":null},"partners":[{"name":"LUIZ CARLOS PINHO GUEDES","role":"Diretor"}]}

Input parameters:

- `cnpj` (string, required): CNPJ, 14 chars, with or without punctuation (alphanumeric supported)

### `selic_rate` (~131 tokens)

Current Brazilian policy rate (Selic target set by Copom), effective daily Selic and CDI, annualized, from Banco Central do Brasil. Price: $0.005 USDC per call via x402; first call per tool per day is free. Example response: {"selic_target":{"value":13.75,"unit":"% a.a.","as_of":"2026-10-15"},"selic_daily_annualized":{"value":13.65,"unit":"% a.a."},"cdi_annualized":{"value":13.65,"unit":"% a.a."}}

### `ipca_inflation` (~157 tokens)

Brazilian official inflation (IPCA, IBGE via BCB): latest monthly change, 12-month accumulated, and monthly history. Price: $0.005 USDC per call via x402; first call per tool per day is free. Example response: {"latest_month":{"reference":"2026-09","value":0.82,"unit":"% a.m."},"accumulated_12m":{"reference":"2026-09","value":4.58,"unit":"%"},"history":[{"reference":"2026-08","value":-0.32},{"reference":"2026-09","value":0.82}]}

Input parameters:

- `months` (integer): Months of history (default 12)

### `ptax_exchange_rate` (~154 tokens)

Official PTAX exchange rate (BRL per unit of foreign currency) published by Banco Central do Brasil for a given date; falls back to the last bulletin before a weekend/holiday. Price: $0.005 USDC per call via x402; first call per tool per day is free. Example response: {"currency":"USD","requested_date":"2026-10-14","quote_date":"2026-10-14","buy_brl":5.0435,"sell_brl":5.0441,"bulletin":"Fechamento PTAX"}

Input parameters:

- `currency` (string): ISO currency code (default USD)
- `date` (string): YYYY-MM-DD (default today, BRT)

### `business_days` (~169 tokens)

Brazilian business-day calculator (national + banking holidays): count business days between two dates (DU convention, (from, to]) or add N business days to a date. Price: $0.005 USDC per call via x402; first call per tool per day is free. Example response: {"mode":"count","from":"2026-10-01","to":"2026-10-31","business_days":20,"calendar":"BR national + banking holidays"}

Input parameters:

- `add` (integer): Business days to add (negative to subtract)
- `date` (string): Base date YYYY-MM-DD (add/check mode)
- `from` (string): Start date YYYY-MM-DD (count mode, exclusive)
- `to` (string): End date YYYY-MM-DD (count mode, inclusive)

### `bank_lookup` (~146 tokens)

Brazilian bank / payment institution lookup by COMPE code, ISPB, CNPJ or name, merged from Banco Central's STR participant list and active Pix participant list. Price: $0.005 USDC per call via x402; first call per tool per day is free. Example response: {"query":"260","count":1,"results":[{"ispb":"18236120","compe_code":"260","short_name":"NU PAGAMENTOS - IP","cnpj":"18236120000158","pix":{"participant":true}}]}

Input parameters:

- `query` (string, required): COMPE code (e.g. 260), ISPB (8 digits), CNPJ, or name

### `cep_lookup` (~103 tokens)

Brazilian postal code (CEP) to address: street, district, city, UF, IBGE city code, DDD. Free. Example response: {"cep":"01001000","street":"Praça da Sé","district":"Sé","city":"São Paulo","uf":"SP","region":"Sudeste","city_ibge":"3550308","ddd":"11"}

Input parameters:

- `cep` (string, required): CEP, 8 digits, e.g. 01001-000

### `holidays` (~104 tokens)

Brazilian national and banking holidays for a year (incl. Carnival, Good Friday, Corpus Christi, Nov 20). Free. Example response: {"year":2026,"holidays":[{"date":"2026-01-01","name":"Confraternização Universal","name_en":"New Year's Day","kind":"national"},{"date":"2026-02-16","name":"Carnaval (segunda-feira)","kind":"banking"}]}

Input parameters:

- `year` (integer, required)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/dev-workers-wagner-proc-brasil-data-x402-brasil-data/brasil-data-x402#diagnostics

## Score history

- 2026-11-05: 73
- 2026-11-04: 73
- 2026-11-03: 72
- 2026-11-02: 72
- 2026-11-01: 71
- 2026-10-31: 71
- 2026-10-30: 70
- 2026-10-29: 70
- 2026-10-28: 70
- 2026-10-27: 69
- 2026-10-26: 69
- 2026-10-25: 68
- 2026-10-24: 68
- 2026-10-23: 67
- 2026-10-22: 67
- 2026-10-21: 66
- 2026-10-20: 66
- 2026-10-19: 65
- 2026-10-18: 65
- 2026-10-17: 64
- 2026-10-16: 64
- 2026-10-15: 62
- 2026-10-14: 62
- 2026-10-13: 61
- 2026-10-12: 61
- 2026-10-11: 60
- 2026-10-10: 60
- 2026-10-09: 59

## Common questions

### What is the Brasil Data (pay-per-call via x402) MCP server?

Brasil Data (pay-per-call via x402) is an MCP server listed in the public MCP registry as dev.workers.wagner-proc.brasil-data-x402/brasil-data. Brazil CNPJ, CEP, Selic/IPCA/PTAX, holidays, banks/ISPB for agents. Pay per call in USDC (x402). This page covers its hosted endpoint (https://brasil-data-x402.wagner-proc.workers.dev/mcp).

### Is the Brasil Data (pay-per-call via x402) MCP server safe to use?

Brasil Data (pay-per-call via x402) scores 73 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 Brasil Data (pay-per-call via x402) MCP server expose?

Brasil Data (pay-per-call via x402) exposes 8 tools: cnpj_lookup, selic_rate, ipca_inflation, ptax_exchange_rate, business_days, and 3 more. Their descriptions and schemas cost roughly 1,223 tokens of context every time the server is loaded.

### Does the Brasil Data (pay-per-call via x402) MCP server require authentication?

No. We connected to Brasil Data (pay-per-call via x402) without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Brasil Data (pay-per-call via x402) MCP server still maintained?

Brasil Data (pay-per-call via x402) is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What did VerifyMCP test on the Brasil Data (pay-per-call via x402) MCP server?

VerifyMCP ran 11 checks on Brasil Data (pay-per-call via x402), covering TLS certificate, HSTS header, DNSSEC, Transport and 7 more. 2 items could not be completed, a gap on our side rather than a finding about Brasil Data (pay-per-call via x402): Authorization and HTTPS. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- Remote endpoint: https://brasil-data-x402.wagner-proc.workers.dev/mcp
- Website: https://brasil-data-x402.wagner-proc.workers.dev/
- Changelog RSS feed: https://verifymcp.io/servers/dev-workers-wagner-proc-brasil-data-x402-brasil-data/brasil-data-x402.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-workers-wagner-proc-brasil-data-x402-brasil-data/brasil-data-x402/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/dev-workers-wagner-proc-brasil-data-x402-brasil-data/brasil-data-x402.json
- HTML version of this page: https://verifymcp.io/servers/dev-workers-wagner-proc-brasil-data-x402-brasil-data/brasil-data-x402