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MCP Caixa

by codesparversion 0.2.0-alpha.3i★ 279 (Stars for the whole repo)iRuns on your computer
Registry nameio.github.codespar/mcp-caixa

How to install

What it does

MCP server for Caixa Econômica Federal — Pix, Cobrança (SICOB boleto), Extrato (OAuth2 + mTLS)

  • Connects Runs on your computer
  • Account or key Needs CAIXA_CLIENT_SECRET, CAIXA_KEY_PATH · 2 settings to fill in (CAIXA_CLIENT_ID, CAIXA_CERT_PATH)
  • Category Other

Install

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

Passed 3/3 checks · Runs on your computer · ✓ Commands checked Nov 14, 2026

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a MCP Caixa key (create it on the maker’s site) · 2 setting(s) to fill in (CAIXA_CLIENT_ID, CAIXA_CERT_PATH) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Let AI install it

Copy this message into a Claude chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server MCP Caixa for Claude on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "mcpServers": { "caixa": { "command": "npx", "args": [ "-y", "@codespar/mcp-caixa" ], "env": { "CAIXA_CLIENT_ID": "your-value", "CAIXA_CLIENT_SECRET": "your-value", "CAIXA_CERT_PATH": "your-value", "CAIXA_KEY_PATH": "your-value" } } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) For CAIXA_CLIENT_SECRET, CAIXA_KEY_PATH, CAIXA_CLIENT_ID, CAIXA_CERT_PATH, leave "your-value" in place and tell me to paste the real value myself into the file or the app’s field. Never ask me to type a key in chat. 5) Do what we agreed, then check that the MCP Caixa tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

  1. Install Node.js (if you don’t have it)

    Already installed? Check first · Open Terminal, type this command and press Enter

    node -v
    • A version number such as v26.13.1 = installed, skip this step
    • "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
    How to open Terminal

    Mac: press ⌘ + Space, type Terminal, press Enter

    Windows: open Start, type Windows PowerShell, then Open

    Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed

    Open the Node.js download page ↗

    When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v

    Install once; it works for everything that needs Node.js

  2. Sign up and create a MCP Caixa key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    How to get a key is in the maker’s README below

  3. Fill in 2 setting(s)

    These are program settings, not keys. No sign-up needed; fill them in as the maker describes.

    • CAIXA_CLIENT_ID Caixa OAuth client_id issued via the Developer Portal after contract onboarding.
    • CAIXA_CERT_PATH Absolute path to the mTLS client certificate (.crt or .pem). BACEN mandates mTLS for Pix v2.

    Descriptions are as written by the maker.

  4. Open the Claude desktop app’s settings file

    SettingsDeveloperEdit Config

  5. Paste these settings and save the file

    {
  "mcpServers": {
    "caixa": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-caixa"
      ],
      "env": {
        "CAIXA_CLIENT_ID": "your-value",
        "CAIXA_CLIENT_SECRET": "your-value",
        "CAIXA_CERT_PATH": "your-value",
        "CAIXA_KEY_PATH": "your-value"
      }
    }
  }
}

    Paste the key only into the app’s field, never into a chat or to anyone

  6. Quit Claude and open it again

  7. Try it

    Use MCP Caixa and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using MCP Caixa or shows a MCP Caixa tool in the answer, you are connected

1 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

  • CAIXA_ENV Environment: 'sandbox' or 'production'. Defaults to 'sandbox'.

Descriptions are as written by the maker.

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect MCP Caixa yet

MCP Caixa runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect MCP Caixa

  • You need a MCP Caixa key (create it on the maker’s site) · 2 setting(s) to fill in (CAIXA_CLIENT_ID, CAIXA_CERT_PATH) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
  • You need a MCP Caixa key (create it on the maker’s site) · 2 setting(s) to fill in (CAIXA_CLIENT_ID, CAIXA_CERT_PATH) · Install Node.js on your computer first (one time)
  • You need a MCP Caixa key (create it on the maker’s site) · 2 setting(s) to fill in (CAIXA_CLIENT_ID, CAIXA_CERT_PATH) · Install Node.js on your computer first (one time)
  • You need a MCP Caixa key (create it on the maker’s site) · 2 setting(s) to fill in (CAIXA_CLIENT_ID, CAIXA_CERT_PATH) · Install Node.js on your computer first (one time)

B · Others in Other that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Works with Claude Code, with some setup first

You need a MCP Caixa key (create it on the maker’s site) · 2 setting(s) to fill in (CAIXA_CLIENT_ID, CAIXA_CERT_PATH) · Install Node.js on your computer first (one time)

Let AI install it

Copy this message into a Claude Code chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server MCP Caixa for Claude Code on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): claude mcp add --scope user caixa --env CAIXA_CLIENT_ID=your-value --env CAIXA_CLIENT_SECRET=your-value --env CAIXA_CERT_PATH=your-value --env CAIXA_KEY_PATH=your-value -- npx -y @codespar/mcp-caixa 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) For CAIXA_CLIENT_SECRET, CAIXA_KEY_PATH, CAIXA_CLIENT_ID, CAIXA_CERT_PATH, leave "your-value" in place and tell me to paste the real value myself into the file or the app’s field. Never ask me to type a key in chat. 5) Do what we agreed, then check that the MCP Caixa tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

  1. Install Node.js (if you don’t have it)

    Already installed? Check first · Open Terminal, type this command and press Enter

    node -v
    • A version number such as v26.13.1 = installed, skip this step
    • "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
    How to open Terminal

    Mac: press ⌘ + Space, type Terminal, press Enter

    Windows: open Start, type Windows PowerShell, then Open

    Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed

    Open the Node.js download page ↗

    When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v

    Install once; it works for everything that needs Node.js

  2. Sign up and create a MCP Caixa key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    How to get a key is in the maker’s README below

  3. Fill in 2 setting(s)

    These are program settings, not keys. No sign-up needed; fill them in as the maker describes.

    • CAIXA_CLIENT_ID Caixa OAuth client_id issued via the Developer Portal after contract onboarding.
    • CAIXA_CERT_PATH Absolute path to the mTLS client certificate (.crt or .pem). BACEN mandates mTLS for Pix v2.

    Descriptions are as written by the maker.

  4. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  5. Paste this command and press Enter

    claude mcp add --scope user caixa --env CAIXA_CLIENT_ID=your-value --env CAIXA_CLIENT_SECRET=your-value --env CAIXA_CERT_PATH=your-value --env CAIXA_KEY_PATH=your-value -- npx -y @codespar/mcp-caixa

    Replace “your-value” with your key before pressing Enter

    Paste the key only into the app’s field, never into a chat or to anyone

  6. Type /mcp in Claude Code

    You should see MCP Caixa listed as connected

  7. Try it

    Use MCP Caixa and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using MCP Caixa or shows a MCP Caixa tool in the answer, you are connected

1 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

  • CAIXA_ENV Environment: 'sandbox' or 'production'. Defaults to 'sandbox'.

Descriptions are as written by the maker.

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

You need a MCP Caixa key (create it on the maker’s site) · 2 setting(s) to fill in (CAIXA_CLIENT_ID, CAIXA_CERT_PATH) · Install Node.js on your computer first (one time)

Let AI install it

Copy this message into a Cursor chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server MCP Caixa for Cursor on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "mcpServers": { "caixa": { "command": "npx", "args": [ "-y", "@codespar/mcp-caixa" ], "env": { "CAIXA_CLIENT_ID": "your-value", "CAIXA_CLIENT_SECRET": "your-value", "CAIXA_CERT_PATH": "your-value", "CAIXA_KEY_PATH": "your-value" } } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) For CAIXA_CLIENT_SECRET, CAIXA_KEY_PATH, CAIXA_CLIENT_ID, CAIXA_CERT_PATH, leave "your-value" in place and tell me to paste the real value myself into the file or the app’s field. Never ask me to type a key in chat. 5) Do what we agreed, then check that the MCP Caixa tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

  1. Install Node.js (if you don’t have it)

    Already installed? Check first · Open Terminal, type this command and press Enter

    node -v
    • A version number such as v26.13.1 = installed, skip this step
    • "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
    How to open Terminal

    Mac: press ⌘ + Space, type Terminal, press Enter

    Windows: open Start, type Windows PowerShell, then Open

    Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed

    Open the Node.js download page ↗

    When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v

    Install once; it works for everything that needs Node.js

  2. Sign up and create a MCP Caixa key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    How to get a key is in the maker’s README below

  3. Fill in 2 setting(s)

    These are program settings, not keys. No sign-up needed; fill them in as the maker describes.

    • CAIXA_CLIENT_ID Caixa OAuth client_id issued via the Developer Portal after contract onboarding.
    • CAIXA_CERT_PATH Absolute path to the mTLS client certificate (.crt or .pem). BACEN mandates mTLS for Pix v2.

    Descriptions are as written by the maker.

  4. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  5. Fill in your key

    In the MCP Caixa settings, CAIXA_CLIENT_SECRET, CAIXA_KEY_PATH, CAIXA_CLIENT_ID, CAIXA_CERT_PATH is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  6. Open the AI chat in Cursor in Agent mode

  7. Try it

    Use MCP Caixa and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using MCP Caixa or shows a MCP Caixa tool in the answer, you are connected

1 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

  • CAIXA_ENV Environment: 'sandbox' or 'production'. Defaults to 'sandbox'.

Descriptions are as written by the maker.

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

You need a MCP Caixa key (create it on the maker’s site) · 2 setting(s) to fill in (CAIXA_CLIENT_ID, CAIXA_CERT_PATH) · Install Node.js on your computer first (one time)

Let AI install it

Copy this message into a VS Code chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server MCP Caixa for VS Code on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "servers": { "caixa": { "type": "stdio", "command": "npx", "args": [ "-y", "@codespar/mcp-caixa" ], "env": { "CAIXA_CLIENT_ID": "your-value", "CAIXA_CLIENT_SECRET": "your-value", "CAIXA_CERT_PATH": "your-value", "CAIXA_KEY_PATH": "your-value" } } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) For CAIXA_CLIENT_SECRET, CAIXA_KEY_PATH, CAIXA_CLIENT_ID, CAIXA_CERT_PATH, leave "your-value" in place and tell me to paste the real value myself into the file or the app’s field. Never ask me to type a key in chat. 5) Do what we agreed, then check that the MCP Caixa tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

  1. Install Node.js (if you don’t have it)

    Already installed? Check first · Open Terminal, type this command and press Enter

    node -v
    • A version number such as v26.13.1 = installed, skip this step
    • "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
    How to open Terminal

    Mac: press ⌘ + Space, type Terminal, press Enter

    Windows: open Start, type Windows PowerShell, then Open

    Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed

    Open the Node.js download page ↗

    When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v

    Install once; it works for everything that needs Node.js

  2. Sign up and create a MCP Caixa key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    How to get a key is in the maker’s README below

  3. Fill in 2 setting(s)

    These are program settings, not keys. No sign-up needed; fill them in as the maker describes.

    • CAIXA_CLIENT_ID Caixa OAuth client_id issued via the Developer Portal after contract onboarding.
    • CAIXA_CERT_PATH Absolute path to the mTLS client certificate (.crt or .pem). BACEN mandates mTLS for Pix v2.

    Descriptions are as written by the maker.

  4. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  5. Fill in your key

    In the MCP Caixa settings, CAIXA_CLIENT_SECRET, CAIXA_KEY_PATH, CAIXA_CLIENT_ID, CAIXA_CERT_PATH is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  6. Open the AI chat in VS Code in Agent mode

  7. Try it

    Use MCP Caixa and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using MCP Caixa or shows a MCP Caixa tool in the answer, you are connected

1 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

  • CAIXA_ENV Environment: 'sandbox' or 'production'. Defaults to 'sandbox'.

Descriptions are as written by the maker.

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use MCP Caixa💬 Discussion →
For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user caixa --env CAIXA_CLIENT_ID=your-value --env CAIXA_CLIENT_SECRET=your-value --env CAIXA_CERT_PATH=your-value --env CAIXA_KEY_PATH=your-value -- npx -y @codespar/mcp-caixa

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "caixa": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-caixa"
      ],
      "env": {
        "CAIXA_CLIENT_ID": "your-value",
        "CAIXA_CLIENT_SECRET": "your-value",
        "CAIXA_CERT_PATH": "your-value",
        "CAIXA_KEY_PATH": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "caixa": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-caixa"
      ],
      "env": {
        "CAIXA_CLIENT_ID": "your-value",
        "CAIXA_CLIENT_SECRET": "your-value",
        "CAIXA_CERT_PATH": "your-value",
        "CAIXA_KEY_PATH": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "caixa": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-caixa"
      ],
      "env": {
        "CAIXA_CLIENT_ID": "your-value",
        "CAIXA_CLIENT_SECRET": "your-value",
        "CAIXA_CERT_PATH": "your-value",
        "CAIXA_KEY_PATH": "your-value"
      }
    }
  }
}

Values you fill in

  • CAIXA_CLIENT_ID required env
    Caixa OAuth client_id issued via the Developer Portal after contract onboarding.
  • CAIXA_CLIENT_SECRET secret required env
    Caixa OAuth client_secret.
  • CAIXA_CERT_PATH required env
    Absolute path to the mTLS client certificate (.crt or .pem). BACEN mandates mTLS for Pix v2.
  • CAIXA_KEY_PATH secret required env
    Absolute path to the mTLS private key (.key or .pem).
  • CAIXA_ENV env
    Environment: 'sandbox' or 'production'. Defaults to 'sandbox'.

Descriptions are as written by the maker.

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

At a glance

GitHub starsi
279 (Stars for the whole repo)
This repo holds several MCP listings; its stars count once in rankings
Downloads per weeki
54/wk
Connection
Runs on your computer
Latest versioni
0.2.0-alpha.3
Categoryi
Other
Published to registryi
Jun 23, 2026
Code last changedi
Nov 13, 2026
Maker
codespar
Packages
npm: @codespar/mcp-caixa
Registry status
Active

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

Guide 85 checks before you install an MCPAbout 2 minutes each: check its page on our site and the permission request in your AI app before you say yes.4 min read

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 15, 2026

  • ✓ Pass

    Maker matches the repo

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

  • ✓ Pass

    Still maintained

    Code last changed 2 days ago

  • ✓ Pass

    Has a licence

    Uses MIT

  • – 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

Published vulnerabilities (OSV.dev)

Not checked yet

What we check → · JSON

Makers: ask for a re-check or report wrong info

Sign in

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

Sign in to post

User reviews

No reviews yet

Sign in to write a review

Compared with others in Otheri

  • More stars than 0% of the other 19849 servers in this category
  • Published to the registry more recently than 10% of the other 19849 servers in this category
  • Basic checks equal to or better than 100% of the other 19849 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 Caixa safe?

It passed 3 of 3 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: CAIXA_CLIENT_SECRET, CAIXA_KEY_PATH

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 2 days ago, and the latest version (0.2.0-alpha.3) reached the registry 5 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: World Monitor, openstatus, Oh My Posh Validator, Strata, Jitsu

Similar alternatives

Same category, other makers, commands already checked. Official ones first, then by stars.

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

World Monitor

Real-time global intelligence on conflict, markets, energy, trade, shipping and cyber. 97 tools.

by koala73Widely used★ 90.6KUpdated yesterday

Runs in the cloud✓ service owner · worldmonitor.app
How to connect

openstatus

Manage monitors, status pages, incidents and maintenances in your openstatus workspace.

by openstatusHQWidely used★ 9.3KUpdated 2 months ago

Runs in the cloud✓ service owner · openstatus.dev
How to connect

Oh My Posh Validator

Validate oh-my-posh configurations and segment snippets against the official schema.

by JanDeDobbeleerWidely used★ 23.8K Stars for the whole repoUpdated 26 days ago

Runs in the cloud✓ service owner · ohmyposh.dev
How to connect

Strata

MCP server for progressive tool usage at any scale (see https://klavis.ai)

by Klavis-AIGrowing★ 5.8KUpdated 14 months ago

Runs in the cloudRepo archived✓ klavis.ai
How to connect

Jitsu

Manage Jitsu data pipelines: destinations, streams, connections, functions, live events.

by jitsucomWidely used★ 5.1KUpdated 4 months ago

Runs in the cloud✓ service owner · jitsu.com
How to connect
  • World Monitor — Runs in the cloud, nothing to install · No key needed
  • openstatus — Runs in the cloud, nothing to install · No key needed
  • Oh My Posh Validator — Runs in the cloud, nothing to install · No key needed
  • Strata — Runs in the cloud, nothing to install · No key needed
  • Jitsu — Runs in the cloud, nothing to install · No key needed

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-caixa

MCP server for Caixa Econômica Federal — Brazil's largest state-owned bank.

Caixa occupies a segment none of the private tier-1 banks (Itaú, Bradesco, Santander, BB) can cover: it runs federal social programs (PIS/PASEP, FGTS, Bolsa Família / Auxílio Brasil), operates the national lottery (Loterias Caixa), and is the preferred bank for merchants that value state-bank credibility or serve beneficiaries of federal transfer programs. For the payment surface that matters to merchants — Pix, boleto (Cobrança / SICOB), and extrato — Caixa follows the BACEN Pix v2 standard shared across every tier-1 bank, so the integration shape mirrors its private-sector peers.

Status: alpha (0.1.0-alpha.1)

Caixa's Developer Portal is contract-gated, and as a state-owned institution the onboarding is additionally bureaucratic: vendor registration and credenciamento are required on top of the commercial merchant contract. Full OpenAPI specs for Pix, Cobrança (SICOB), and Extrato are only visible to onboarded merchants. The endpoint paths in this server are best-guesses based on (a) BACEN Pix v2 standard paths, (b) Caixa's public SICOB / Cobrança integration guides, and (c) conventions shared with Itaú / Bradesco / BB. Every unverified path is flagged TODO(verify) in the source.

Pin to exact versions during 0.1.x; paths will be corrected to match the portal spec once an onboarded merchant can validate.

Tools (23)

ToolPurpose
get_oauth_tokenMint or return a cached OAuth2 client_credentials bearer token for the Caixa Developer Portal.
send_pixInitiate an outbound Pix payment from the merchant's Caixa account.
create_pix_qrCreate a dynamic Pix charge with QR code (cob).
get_pixRetrieve a Pix transaction by its BCB endToEndId (E ).
resolve_dict_keyResolve a DICT key (CPF, CNPJ, email, phone, EVP) to the owner's account data before sending a Pix.
refund_pixRefund (devolução) a previously received Pix.
create_boletoIssue a boleto via Caixa Cobrança (SICOB).
get_boletoRetrieve a boleto by its Caixa identifier (id or nosso_numero).
cancel_boletoCancel (baixa) an outstanding boleto before payment.
get_statementRetrieve account statement transactions for a given period.
get_pix_chargeRetrieve a Pix immediate charge (cob) by its BCB txid.
update_pix_chargeUpdate (PATCH) a Pix immediate charge (cob) — e.g.
list_pix_chargesList Pix immediate charges (cob) filtered by date range and optional status / CPF / CNPJ.
create_pix_due_chargeCreate a Pix due-date charge (cobv) with mandatory payer data and due date.
get_pix_due_chargeRetrieve a Pix due-date charge (cobv) by its BCB txid.
list_pix_receivedList received Pix transactions (pix recebidos) by date range.
register_dict_keyRegister a DICT key (CPF, CNPJ, email, phone, or EVP) to an account owned by the merchant.
delete_dict_keyDelete (unregister) a DICT key owned by the merchant.
download_boleto_pdfFetch the rendered boleto PDF for an issued boleto.
get_account_balanceReturn the current balance for a Caixa merchant account, including available, blocked, and overdraft limit...
transfer_tedInitiate an outbound TED transfer from a Caixa merchant account to an external bank account.
consult_fgtsQuery FGTS balance / extrato.
pay_tributePay a federal tribute (DARF, GPS, GRU) or other guia de arrecadação via Caixa.

Why Caixa (vs. a private bank)

  • Social-program beneficiaries. If a meaningful slice of your customer base receives federal transfers, Caixa is where the money lands first.
  • State-bank credibility. Government-adjacent merchants, concessionárias, and regulated verticals often prefer — or are required — to hold accounts at a state-owned bank.
  • Lottery / Loterias Caixa corridor. Retailers in the lotérica network settle through Caixa.
  • Same Pix / boleto rails as the private banks. No technical tradeoff — the BACEN Pix v2 standard is identical.

Install

npm install @codespar/mcp-caixa@0.1.0-alpha.1

Environment

CAIXA_CLIENT_ID="..."       # OAuth client_id from Caixa's Developer Portal

CAIXA_CLIENT_SECRET="..." # OAuth client_secret CAIXA_CERT_PATH="/abs/path/to/client.crt" # mTLS client certificate CAIXA_KEY_PATH="/abs/path/to/client.key" # mTLS private key CAIXA_ENV="sandbox" # or "production" (default: sandbox)

Authentication

Two factors are both required on every call:

  1. OAuth2 `client_credentials` — the server calls the token endpoint, caches the bearer until ~60s before expiry, and attaches Authorization: Bearer to downstream calls.
  2. mTLS — BACEN mandates mutual TLS for Pix v2, and Caixa enforces it across product families. The server loads the client certificate and private key from the paths you set, builds a Node https.Agent, and routes every request through it.

You obtain the cert + key bundle from the Caixa Developer Portal after your merchant contract and credenciamento are approved. They are distinct from the OAuth credentials.

Run

# stdio (default)

npx @codespar/mcp-caixa

HTTP transport

MCP_HTTP=true MCP_PORT=3000 npx @codespar/mcp-caixa

Caveats

  • Paths are unverified. See the TODO(verify) markers in src/index.ts. Onboarded merchants should validate against their portal-issued OpenAPI spec and open a PR.
  • Sandbox host is a guess. Caixa issues a homologação subdomain per merchant; override by editing BASE_URL if your provisioned sandbox URL differs.
  • SICOB legacy. Older boleto contracts may still route through the legacy SIGCB surface. The create_boleto / get_boleto / cancel_boleto tools target Cobrança v2; if your contract predates it, paths will differ.
  • Onboarding timeline. Factor weeks, not days. State-owned vendor registration is the critical path — start it before you start coding.

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.

License

MIT