Caixa MCP Server

mcp-caixa is an MCP server in the security category that exposes 23 tools to an agent, covering pix, boleto, read & search.

People who work with pix, boleto and charge and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

One of 127 MCP servers published from codespar/mcp-dev-latam. Stars and repository activity are shared across all of them. See all 127 →

VERIFIED ACTIVE

LAST COMMIT 2026-08-29 · VERIFIED 2026-09-18

MIT · TypeScript servers · how we verify → /methodology

01 · Install Caixa

before you install - you'll need

Set CAIXA_CLIENT_ID, CAIXA_CLIENT_SECRET, CAIXA_CERT_PATH, CAIXA_KEY_PATH, MCP_HTTP before connecting. CAIXA_ENV is optional or environment-specific per the README.

Claude Code

claude mcp add codespar-mcp-dev-latam-packages-banking- -- npx -y @codespar/mcp-caixa

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "codespar-mcp-dev-latam-packages-banking-": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-caixa"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package @codespar/mcp-caixa - published under the repo owner's npm scope (@codespar)

registry namespace io.github.codespar is GitHub-verified and matches the repo owner

03 · What Caixa can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can create a dynamic Pix charge with QR code (cob), retrieve a Pix transaction by its BCB endToEndId (E), resolve a DICT key (CPF, CNPJ, email, phone, EVP) to the owner's account data before sending a Pix, and retrieve a boleto by its Caixa identifier (id or nosso_numero).

Capability map

Tools grouped from the project's README - what Caixa lets an agent do.

Pix

10 tools - e.g. Initiate an outbound Pix payment from the merchant's Caixa account.; Create a dynamic Pix charge with QR code (cob).; Retrieve a Pix transaction by its BCB endToEndId (E).

send_pix · create_pix_qr · get_pix · refund_pix · get_pix_charge · update_pix_charge…

Boleto

4 tools - e.g. Issue a boleto via Caixa Cobrança (SICOB).; Retrieve a boleto by its Caixa identifier (id or nosso_numero).; Cancel (baixa) an outstanding boleto before payment.

create_boleto · get_boleto · cancel_boleto · download_boleto_pdf

read & search

3 tools - e.g. Mint or return a cached OAuth2 client_credentials bearer token for the Caixa Developer Portal.; Retrieve account statement transactions for a given period.; Return the current balance for a Caixa merchant…

get_oauth_token · get_statement · get_account_balance

Resolve

1 tool - e.g. Resolve a DICT key (CPF, CNPJ, email, phone, EVP) to the owner's account data before sending a Pix.

resolve_dict_key

Register

1 tool - e.g. Register a DICT key (CPF, CNPJ, email, phone, or EVP) to an account owned by the merchant.

register_dict_key

delete

1 tool - e.g. Delete (unregister) a DICT key owned by the merchant.

delete_dict_key

Transfer

1 tool - e.g. Initiate an outbound TED transfer from a Caixa merchant account to an external bank account.

transfer_ted

Consult

1 tool - e.g. Query FGTS balance / extrato.

consult_fgts

Limitations (from the README)

- 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 / g

04 · Who maintains Caixa

mcp-caixa is maintained by codespar. We track 127 MCP servers from codespar - 127 actively maintained, 271 combined GitHub stars, oldest repo from Mar 2026. Full record: all servers from codespar.

  1. mcp-brasil-api MCP server for BrasilAPI - CEP, CNPJ, banks, FIPE, holidays, weather ★ 271
  2. mcp-iugu MCP server for iugu - invoices, subscriptions, customers, payment methods ★ 271
  3. mcp-asaas MCP server for Asaas - billing automation, Pix, boleto, credit card, subscriptions ★ 271
  4. mcp-omie MCP server for Omie - ERP, customers, products, orders, invoices, financials ★ 271
  5. mcp-mercado-bitcoin MCP server for Mercado Bitcoin - Brazilian crypto exchange, trading, orderbook, withdrawals ★ 271
  6. mcp-sendgrid MCP server for SendGrid - global transactional + marketing email (Twilio-owned) ★ 271

05 · Facts

category
security - actively maintained as of 2026-09-18.
registry
io.github.codespar/mcp-caixa (active, first published 2026-06-20 · 2 versions)
packages
npm:@codespar/mcp-caixa

06 · Caixa FAQ

Is Caixa still maintained?

Yes - as of 2026-09-18, its last commit was 2026-08-29. We re-verify nightly.

What can Caixa do?

With this server connected, an agent can create a dynamic Pix charge with QR code (cob), retrieve a Pix transaction by its BCB endToEndId (E), resolve a DICT key (CPF, CNPJ, email, phone, EVP) to the owner's account data before sending a Pix, and retrieve a boleto by its Caixa identifier (id or nosso_numero).

How do I install Caixa?

Run `npx -y @codespar/mcp-caixa`. The README documents 6 environment variables (CAIXA_CLIENT_ID, CAIXA_CLIENT_SECRET, CAIXA_CERT_PATH…) to set first. Set CAIXA_CLIENT_ID, CAIXA_CLIENT_SECRET, CAIXA_CERT_PATH, CAIXA_KEY_PATH, MCP_HTTP before connecting. CAIXA_ENV is optional or environment-specific per the README. You can also paste the ready-made client config above.

Does Caixa run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Caixa

More security MCP servers · Itau · Santander · Sicoob · Caf · Izipay

More TypeScript MCP servers · Dock · Iniciador · Matera · Midaz · see all