mcpcost

io.github.renatoctti/brasilapi-mcp

BrasilAPI (CNPJ, CEP, validation, holidays)

Is the BrasilAPI (CNPJ, CEP, validation, holidays) MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-09.

Brazilian public data via BrasilAPI: CNPJ and partners, CEP, CNPJ/CPF validation, holidays

alive probed 2026-11-15 · unchanged since 2026-11-09

5tools
937tokens in Claude Opus 5.5
0.5 %of Claude's 200k window
0.4×the median server
196 msto initialize
6 msto list tools
Run it
npx -y @renatoctti/brasilapi-mcp@0.1.0 (stdio, probed in a container with the network off)
Host
npmjs.com
Reports itself as
brasilapi-mcp 0.1.0
Capabilities
tools
Instructions
none
Of a 1M window
<0.1 % of a 1M context window
Count
937 tokens in Claude Opus 5.5, exact, measured 2026-11-09. With the Claude Code prefix mcp__…__ on each tool name: 1.0k. The o200k_base estimate is 530. Counted again when the tool definitions change. Method.
Repository
https://github.com/renatoctti/brasilapi-mcp
Registry
active, updated 2026-11-09 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.77×.

Tool≈ Claude tokenso200k estimateShare of this server
lookup_cnpj30617333 %
validate_cnpj1689518 %
lookup_cep1578917 %
list_holidays1578917 %
validate_cpf1498416 %

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Other registry entries on npmjs.com, the ones next to this name; all of them.

Servers that mention brasilapi or validation or holidays.

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mcpcost: alive

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Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.

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