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MCP Nubank

by codesparversion 0.2.0-alpha.4i★ –iRuns on your computer
Registry nameio.github.codespar/mcp-nubank

Install

Overview

Description from the maker (original English)

DEPRECATED: no live endpoint (api.nubank.com.br does not resolve)

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: Other
  • You need to fill in: NUBANK_CLIENT_ID

Install

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

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • You fill in yourself: NUBANK_CLIENT_ID

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

You need

  • npmNode.js installed (for the npx command)

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": {
    "nubank": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-nubank"
      ],
      "env": {
        "NUBANK_CLIENT_ID": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add nubank --env NUBANK_CLIENT_ID=your-value -- npx -y @codespar/mcp-nubank

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": {
    "nubank": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-nubank"
      ],
      "env": {
        "NUBANK_CLIENT_ID": "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": {
    "nubank": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-nubank"
      ],
      "env": {
        "NUBANK_CLIENT_ID": "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

  • NUBANK_CLIENT_ID secret required env
    API key/token for nubank

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

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 7, 2026

  • ✓ Pass

    Maker matches the repo

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

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … 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 Otheri

  • More stars than 0% of the other 18354 servers in this category
  • Published to the registry more recently than 53% of the other 18354 servers in this category
  • Basic checks equal to or better than 100% of the other 18354 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 MCP Nubank safe?

It passed 1 of 1 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: NUBANK_CLIENT_ID

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 –, and the latest version (0.2.0-alpha.4) reached the registry 41 days 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: Spec Driven Development, Remote Desktop Commander, Qemu MCP

Alternatives

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

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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.

@codespar/mcp-nubank

Deprecated: no live endpoint. Measured on 2026-09-27 against two public DNS resolvers (8.8.8.8 and 1.1.1.1): api.nubank.com.br, the host this server calls, does not resolve in DNS. Nubank's only public API we found is NuPay for Business (api.spinpay.com.br), which @codespar/mcp-nupay already covers. No tool in this server reaches a service. The package is deprecated on npm and stays in this repository for reference only. If you have a working endpoint, point the server at it with NUBANK_BASE_URL. To bring the package back, open an issue in mcp-dev-latam with the provider's documented base URL.

MCP server for Nubank, Brazil's largest digital bank, using the Open Finance Brasil standard

Alpha release — published under the alpha npm dist-tag. Endpoint paths follow public docs and BACEN/provider conventions but have not been fully live-validated. Pin exact versions during 0.x.x-alpha. Install with npm install @codespar/mcp-nubank@alpha.

Quick Start

# Set your credentials

export NUBANK_CLIENT_ID="your-client-id" export NUBANK_CLIENT_SECRET="your-client-secret" export NUBANK_CERT_PATH="/path/to/certificate.pem"

Run via stdio

npx -y @codespar/mcp-nubank@alpha

Run via HTTP

MCP_HTTP=true MCP_PORT=3000 npx -y @codespar/mcp-nubank@alpha

Environment Variables

VariableRequiredDescription
NUBANK_CLIENT_IDYesOAuth2 client ID
NUBANK_CLIENT_SECRETYesOAuth2 client secret
NUBANK_CERT_PATHYesPath to mTLS certificate file
MCP_HTTPNoSet to "true" to enable HTTP transport
MCP_PORTNoHTTP port (default: 3000)

Tools (22)

ToolPurpose
get_accountsList all accounts (checking, savings)
get_balanceGet account balance
get_transactionsList transactions with filters
get_credit_card_billGet credit card bill details
get_investmentsList investments and yields
initiate_pixInitiate a PIX transfer
get_pix_keysList registered PIX keys
get_statementGet account statement for a period
get_profileGet authenticated user profile information
list_cardsList debit and credit cards
get_pix_transferGet status and details of a specific PIX transfer
schedule_pixSchedule a future-dated PIX transfer
cancel_scheduled_pixCancel a previously scheduled PIX transfer
create_pix_keyRegister a new PIX key for the authenticated account
delete_pix_keyRemove a registered PIX key
get_card_detailsGet details for a single debit or credit card
block_cardBlock a card (reports lost/stolen or temporarily disables it)
unblock_cardUnblock a previously blocked card (only valid for temporary blocks)
get_credit_card_transactionsList transactions for a given credit card bill
pay_credit_card_billPay a credit card bill from a linked account
get_boletoRetrieve boleto details by barcode or digitable line
pay_boletoPay a boleto from a linked account

Auth

Uses OAuth2 client credentials flow with mTLS certificate. Register your application through Nubank's Open Finance portal to obtain credentials.

API Reference

Enterprise

Need governance, budget limits, and audit trails for agent payments? CodeSpar Enterprise adds policy engine, payment routing, and compliance templates on top of these MCP servers.

Authentication

Set these environment variables before launching the server:

  • NUBANK_CLIENT_ID *(required, secret)* — API key/token for nubank

Issue credentials at the provider's developer portal: https://openfinancebrasil.org.br.

License

MIT

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