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Brazilayer: Brazilian Public Data

io.github.brazilayer/mcp

Source code

About Brazilayer: Brazilian Public Data

Brazilayer: Brazilian Public Data is an MCP server published by the GitHub account brazilayer. Brazilian company registry (CNPJ), sanctions, funds & market data for AI agents, paid via x402.

It runs on your own machine: your AI client starts it from the MCP bundle package https://github.com/brazilayer/mcp/releases/download/v0.15.2/brazilayer-mcp.mcpb, with no version pinned.

It asks for one secret: BRAZILAYER_PRIVATE_KEY. Give it a key with the least access that still works.

Version 0.15.2 was published on 1 October 2026, and the source code is public, so you can read it before installing.

Written from the registry entry. 8 automated checks on the registry entry and the package code: 4 pass, 2 warn, 0 fail, 2 info. How we check.

What it asks for

VariableRequiredSecretDescription
BRAZILAYER_PRIVATE_KEYNoYesPrivate key (0x…) of the wallet that pays for calls (USDC on Base). Optional: without it, only the free sample tools work.

Checks

CheckResultDetail
Source repository linkedPasshttps://github.com/brazilayer/mcp
Version pinnedWarnNot pinned: https://github.com/brazilayer/mcp/releases/download/v0.15.2/brazilayer-mcp.mcpb
Secrets requestedInfoAsks for 1 secret: BRAZILAYER_PRIVATE_KEY
Known package registryPassAll packages come from npm, PyPI, OCI, NuGet or MCPB
Namespace ownershipInfoName verified via GitHub account brazilayer
Registry text aimed at the AIPassDescription and settings contain no hidden characters or instructions to the AI
Code red flagsWarnVery long encoded blob in code (dist/index.mjs:15765: ""0x608060405234801561001057600080fd5b5060405161069438038061069483398101604081905261002f9161051e565b6")
Text aimed at the AIPassNo hidden characters or instructions to the AI in 4 files, including comments and the README

Popularity & health: 32 / 100

Worked out from public numbers and our own checks, not from user reviews or ratings. It says how used and how looked-after a server is, not whether it is safe.

Popularity0 / 40

0 GitHub stars, no download count, no Hacker News posts found. Best two of the three, each on a log scale.

Activity12 / 25

Last push 2026-10-01, last release 2026-10-01, 0 commits in 90 days.

Issue health8 / 15

0 closed of 1 issues, too few to judge. No data, so half marks.

Our checks12 / 20

2 warnings, each costing a fifth.

0 forks, 0 merged pull requests. Sources: GitHub, npm, PyPI (pypistats.org) and Hacker News (Algolia), fetched 2026-10-31.

What people say

No Hacker News threads link to its source code.

Look further: search Reddit, search Hacker News, read its GitHub issues. These are not reviews we checked.

Facts

Registry nameio.github.brazilayer/mcp
PublisherGitHub account brazilayer
How the name is verifiedName verified via GitHub account brazilayer. The registry ties the name prefix to that account or domain; it does not check the code.
TypeLocal: runs on your machine from a package
Packagesmcpb https://github.com/brazilayer/mcp/releases/download/v0.15.2/brazilayer-mcp.mcpb no version given (stdio)
Version0.15.2
Published
Last updated
Source repositoryhttps://github.com/brazilayer/mcp
Websitehttps://www.brazilayer.com
CategoryFinance & payments (assigned by keyword rule, not by hand)

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