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Brmarket MCP

by thomenzversion 0.3.0i★ 0iRuns on your computer
Registry nameio.github.thomenz/brmarket-mcp

Install

Overview

Description from the maker (original English)

FREE Brazilian marketplace search (ML, Shopee, AliExpress) + import-tax calculator (x402)

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs on your computer
  • Transport: stdio
  • Category: Online shops & payments
  • You need to fill in: EVM_PRIVATE_KEY, SOLANA_PRIVATE_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 2 of 2 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • You fill in yourself: EVM_PRIVATE_KEY, SOLANA_PRIVATE_KEY, SOLANA_RPC_URL, BRMARKET_BASE_URL, X402_NETWORK

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "brmarket": {
      "command": "npx",
      "args": [
        "-y",
        "brmarket-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "your-value",
        "SOLANA_PRIVATE_KEY": "your-value",
        "SOLANA_RPC_URL": "your-value",
        "BRMARKET_BASE_URL": "your-value",
        "X402_NETWORK": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add brmarket --env EVM_PRIVATE_KEY=your-value --env SOLANA_PRIVATE_KEY=your-value --env SOLANA_RPC_URL=your-value --env BRMARKET_BASE_URL=your-value --env X402_NETWORK=your-value -- npx -y brmarket-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "brmarket": {
      "command": "npx",
      "args": [
        "-y",
        "brmarket-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "your-value",
        "SOLANA_PRIVATE_KEY": "your-value",
        "SOLANA_RPC_URL": "your-value",
        "BRMARKET_BASE_URL": "your-value",
        "X402_NETWORK": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "brmarket": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "brmarket-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "your-value",
        "SOLANA_PRIVATE_KEY": "your-value",
        "SOLANA_RPC_URL": "your-value",
        "BRMARKET_BASE_URL": "your-value",
        "X402_NETWORK": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • EVM_PRIVATE_KEY secret env
    0x private key of a DEDICATED wallet holding USDC on Base. OPTIONAL: product search and the tax calculator are free and work without any wallet; only search_by_image and the link comparison return 40…
  • SOLANA_PRIVATE_KEY secret env
    base58 or JSON-array secret key of a DEDICATED Solana wallet holding USDC (pays per call). Configure this and/or EVM_PRIVATE_KEY; the x402 layer settles on whichever rail the 402 advertises.
  • SOLANA_RPC_URL env
    Optional Solana RPC override used to build the payment (e.g. a Helius URL).
  • BRMARKET_BASE_URL env
    Base URL of a brmarket Worker. Defaults to the hosted production API (https://brmarket.thomenz.me).
  • X402_NETWORK env
    'base' (mainnet, default) or 'base-sepolia' (testnet).

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast

All apps, with pros and cons →

Related guides

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 11, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account thomenz, which owns the repo

  • ✓ Pass

    Still maintained

    Code last changed 4 months ago

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Online shops & paymentsi

  • More stars than 0% of the other 2686 servers in this category
  • Published to the registry more recently than 31% of the other 2686 servers in this category
  • Basic checks equal to or better than 100% of the other 2686 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Brmarket MCP safe?

It passed 2 of 2 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: EVM_PRIVATE_KEY, SOLANA_PRIVATE_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed 4 months ago, and the latest version (0.3.0) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spree Commerce developer docs for AI agents, Spree Commerce: open-source B2B and marketplace ecommerce, Stripe MCP

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Stripe MCP

Stripe’s official server lets AI view and manage customers, products, payments and invoices. Connect to Stripe’s cloud and sign in with OAuth.

by stripeWidely used★ 2.1KUpdated 13 months ago

Runs in the cloud✓ stripe.com

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

brmarket-mcp

MCP server for Brazilian marketplace product search, paid automatically with x402 micropayments (USDC on Base or Solana).

One call searches Mercado Livre, Shopee and AliExpress together and returns a single normalized shape: BRL prices in integer cents, canonical + affiliate links, and a per-marketplace sources state so a degraded marketplace is never silent. A free import-tax calculator turns a price into the real *landed price* — the honest "best value with Brazilian import tax" comparison.

Status: not published yet. brmarket-mcp@0.1.0 is built and ready; publishing

to npm and the MCP registry is a manual step. See *Publishing* below.

Tools

ToolPriceWhat it does
search_products$0.01Mercado Livre + Shopee + AliExpress in one call. Normalized BRL prices (integer cents), canonical + affiliate links, free shipping, rating, sold count, seller id/name/official-store, dataAsOf.
search_by_image$0.05Same, but from a product photo. Returns interpreted_query so you can see what was actually searched.
search_products_previewfreeOne result, canonical link only, no affiliate link.
calculate_import_taxesfreeBrazilian import tax + landed price of a cross-border purchase (Import Tax 0% ≤ US$50 else 30% − US$20, ICMS por-dentro by state, Bacen PTAX rate). BRL cents or USD in; pass uf on search_products too for per-offer landed_price_estimate.
Always read sources

Every response reports each marketplace as ok / error / timeout / not_configured. A short result list may mean a marketplace was down, not that the market is thin. Never present a degraded page as the whole market.

Install

npx brmarket-mcp

Claude Desktop / Claude Code (claude_desktop_config.json):

{

"mcpServers": { "brmarket": { "command": "npx", "args": ["-y", "brmarket-mcp"], "env": { "EVM_PRIVATE_KEY": "0x…" } } } }

The free preview tool works with no wallet at all.

Environment

VariableRequiredDescription
EVM_PRIVATE_KEYno0x… key of a dedicated wallet holding USDC on Base.
SOLANA_PRIVATE_KEYnobase58 or JSON-array secret key of a dedicated Solana wallet holding USDC.
SOLANA_RPC_URLnoRPC override used to build the Solana payment (e.g. a Helius URL).
BRMARKET_BASE_URLnoDefaults to https://brmarket.thomenz.me.
X402_NETWORKnobase (default) or base-sepolia.

Configure either rail, or both — the x402 layer settles on whichever the server's 402 advertises. Without any key, paid tools fail with HTTP 402.

⚠️ These keys spend real money. Use dedicated wallets with small balances,

never a personal or treasury key. Anything that can read this process'

environment can spend from them.

Develop

npm install

npm run build # tsc -> dist/ npm run typecheck npm run version:check # all FIVE version sites must agree

Publishing (manual — Thiago only)

npm run version:check   # wired into prepublishOnly too

npm publish

Then verify the tarball from the registry, not the local build:

npm pack brmarket-mcp@<version> --registry https://registry.npmjs.org

tar -xzOf brmarket-mcp- .tgz package/dist/index.js | grep -o 'version: "[^"]*"'

A green build proves nothing about what was published — brdata-mcp 0.3.4 shipped from a stale source copy and its MCP handshake reported 0.3.2 while npm said 0.3.4. Check the tarball.

For the MCP registry, server.json carries the full environmentVariables block. Do not drop it: brdata-mcp 0.3.3 published without it and the registry entry lost every variable.

License

MIT © Thiago Menzinger