MCP C6

Name: MCP C6
Author: codespar

by codesparversion 0.1.0-alpha.4i★ 279 (Stars for the whole repo)iRuns on your computer

Registry nameio.github.codespar/mcp-c6

How to install

What it does

DEPRECATED: no live endpoint (baas.c6bank.com.br does not resolve)

Connects Runs on your computer
Account or key Needs C6_CLIENT_ID, C6_CLIENT_SECRET, C6_CERT_PATH, C6_KEY_PATH
Category Other

Install

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

Passed 3/3 checks · Runs on your computer

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a MCP C6 key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a MCP C6 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
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

{
  "mcpServers": {
    "c6": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-c6"
      ],
      "env": {
        "C6_CLIENT_ID": "your-value",
        "C6_CLIENT_SECRET": "your-value",
        "C6_CERT_PATH": "your-value",
        "C6_KEY_PATH": "your-value",
        "C6_ENV": "your-value"
      }
    }
  }
}

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

Done

Quit Claude and open it again
Done
Try it
Use MCP C6 and tell me what you can do for me, then show me one thing
✓ If Claude says it is using MCP C6 or shows a MCP C6 tool in the answer, you are connected

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

ChatGPT cannot connect MCP C6 yet

MCP C6 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 C6

Steps for Claude →You need a MCP C6 key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Steps for Claude Code →You need a MCP C6 key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Steps for Cursor →You need a MCP C6 key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Steps for VS Code →You need a MCP C6 key (create it on the maker’s site) · 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

Hostinger✓ ChatGPT
World Monitor✓ ChatGPT
Svelte MCP✓ ChatGPT

Works with Claude Code, with some setup first

You need a MCP C6 key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a MCP C6 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
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --scope user c6 --env C6_CLIENT_ID=your-value --env C6_CLIENT_SECRET=your-value --env C6_CERT_PATH=your-value --env C6_KEY_PATH=your-value --env C6_ENV=your-value -- npx -y @codespar/mcp-c6

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

Done

Type /mcp in Claude Code
You should see MCP C6 listed as connected
Done
Try it
Use MCP C6 and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using MCP C6 or shows a MCP C6 tool in the answer, you are connected

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 C6 key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a MCP C6 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
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Fill in your key
In the MCP C6 settings, C6_CLIENT_ID, C6_CLIENT_SECRET, C6_CERT_PATH, C6_KEY_PATH, C6_ENV is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use MCP C6 and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using MCP C6 or shows a MCP C6 tool in the answer, you are connected

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 C6 key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a MCP C6 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
Done
Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Fill in your key
In the MCP C6 settings, C6_CLIENT_ID, C6_CLIENT_SECRET, C6_CERT_PATH, C6_KEY_PATH, C6_ENV is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use MCP C6 and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using MCP C6 or shows a MCP C6 tool in the answer, you are connected

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 C6💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user c6 --env C6_CLIENT_ID=your-value --env C6_CLIENT_SECRET=your-value --env C6_CERT_PATH=your-value --env C6_KEY_PATH=your-value --env C6_ENV=your-value -- npx -y @codespar/mcp-c6

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "c6": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-c6"
      ],
      "env": {
        "C6_CLIENT_ID": "your-value",
        "C6_CLIENT_SECRET": "your-value",
        "C6_CERT_PATH": "your-value",
        "C6_KEY_PATH": "your-value",
        "C6_ENV": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "c6": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-c6"
      ],
      "env": {
        "C6_CLIENT_ID": "your-value",
        "C6_CLIENT_SECRET": "your-value",
        "C6_CERT_PATH": "your-value",
        "C6_KEY_PATH": "your-value",
        "C6_ENV": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "c6": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-c6"
      ],
      "env": {
        "C6_CLIENT_ID": "your-value",
        "C6_CLIENT_SECRET": "your-value",
        "C6_CERT_PATH": "your-value",
        "C6_KEY_PATH": "your-value",
        "C6_ENV": "your-value"
      }
    }
  }
}

Values you fill in

C6_CLIENT_ID required env
C6 OAuth client_id issued via the Developer Portal after contract onboarding.
C6_CLIENT_SECRET secret required env
C6 OAuth client_secret.
C6_CERT_PATH required env
Absolute path to the mTLS client certificate (.crt or .pem). BACEN mandates mTLS for Pix v2.
C6_KEY_PATH secret required env
Absolute path to the mTLS private key (.key or .pem).
C6_ENV env
Environment: 'sandbox' or 'production'. Defaults to 'sandbox'.

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

At a glance

GitHub stars i: 279 (Stars for the whole repo)
This repo holds several MCP listings; its stars count once in rankings
Downloads per weeki: 34/wk
Licence i: MIT
Connection: Runs on your computer
Transport: stdio
Latest versioni: 0.1.0-alpha.4
Categoryi: Other
Published to registryi: Sep 27, 2026
Code last changedi: Sep 27, 2026
Maker: codespar
Packages: npm: @codespar/mcp-c6
Repo: codespar/mcp-dev-latam
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

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

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 12, 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 months 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

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.

User reviews

No reviews yet

Compared with others in Otheri

More stars than 0% of the other 19401 servers in this category
Published to the registry more recently than 49% of the other 19401 servers in this category
Basic checks equal to or better than 100% of the other 19401 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 C6 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: C6_CLIENT_ID, C6_CLIENT_SECRET, C6_CERT_PATH, C6_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 months ago, and the latest version (0.1.0-alpha.4) 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: World Monitor, Claude Flow, Windmill

Others in the same category

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

World Monitor

Real-time global intelligence on conflict, markets, energy, trade, shipping and cyber. 104 tools.

by koala73Widely used★ 90.5KUpdated today

Runs in the cloud✓ service owner · worldmonitor.app

Install

Claude Flow

AI orchestration with hive-mind swarms, neural networks, and 87 MCP tools for enterprise dev.

by ruvnetWidely used↓ 13.5K/wk★ 81.5KUpdated 14 months ago

Runs on your computer

Install

Windmill

Run Windmill scripts and flows and manage jobs, schedules, resources and variables.

by windmill-labsWidely used★ 18.5KUpdated today

Runs in the cloud

Install

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-c6

Deprecated: no live endpoint. Measured on 2026-09-27 against two public DNS resolvers (8.8.8.8 and 1.1.1.1): baas.c6bank.com.br (production) and baas-sandbox.c6bank.com.br (sandbox) do not resolve in DNS. C6's developer portal now documents baas-api.c6bank.info (production) and baas-api-sandbox.c6bank.info (sandbox), both behind mTLS; this server's paths and auth were not written against them and have not been checked. 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 C6_BASE_URL. To bring the package back, open an issue in mcp-dev-latam with the provider's documented base URL.

MCP server for C6 Bank — a top Brazilian digital bank, JPMorgan-backed.

C6 ranks among the largest Brazilian digital banks by retail account base and has expanded aggressively into SMB and corporate banking. Merchants integrate directly for Pix, boleto, and account-data flows.

Status: alpha (`0.1.0-alpha.1`)

C6's Developer Portal is contract-gated — full OpenAPI specs for Pix, Cobrança, and account APIs are only visible to onboarded merchants. The endpoint paths in this server are best-guesses based on (a) the BACEN Pix v2 standard, (b) C6's public marketing pages, and (c) conventions shared across Itaú / Santander / Bradesco. 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 (14)

Tool	Purpose
`get_oauth_token`	Mint or return a cached OAuth2 client_credentials bearer token for the C6 Developer Portal.
`create_pix_cob`	Create a Pix immediate charge (cob) with QR code.
`get_pix_cob`	Retrieve a Pix immediate charge (cob) by its txid.
`list_pix_cob`	List Pix immediate charges (cob) registered by the merchant within a date range.
`create_pix_cobv`	Create a Pix charge with due date (cobv) — used for boleto-like Pix where the payer can pay at or after a d...
`get_pix_cobv`	Retrieve a Pix due-date charge (cobv) by its txid.
`resolve_dict_key`	Resolve a DICT key (CPF, CNPJ, email, phone, EVP) to the owner's account data before sending a Pix.
`register_pix_key`	Register a DICT key (CPF, CNPJ, email, phone, or EVP) on a C6 account owned by the merchant.
`delete_pix_key`	Delete a DICT key owned by the merchant.
`create_boleto`	Issue a boleto via C6 Cobrança.
`get_boleto`	Retrieve a boleto by its C6 identifier (id or nosso_numero).
`cancel_boleto`	Cancel (baixa) an outstanding boleto before payment.
`get_account_balance`	Retrieve the current balance snapshot for a merchant account.
`get_statement`	Retrieve account statement transactions for a given period.

Install

npm install @codespar/mcp-c6@0.1.0-alpha.1

Environment

C6_CLIENT_ID="..."        # OAuth client_id from C6's Developer Portal

C6_CLIENT_SECRET="..." # OAuth client_secret C6_CERT_PATH="/abs/path/to/client.crt" # mTLS client certificate C6_KEY_PATH="/abs/path/to/client.key" # mTLS private key C6_ENV="sandbox" # or "production" (default: sandbox)

Authentication

Two factors are both required on every call:

OAuth2 `client_credentials` — the server calls the token endpoint, caches the bearer until ~60s before expiry, and attaches Authorization: Bearer to downstream calls.
mTLS — BACEN mandates mutual TLS for Pix v2, and C6 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 C6 Developer Portal after your merchant contract is signed.

Run

# stdio (default)

npx @codespar/mcp-c6

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. C6 issues a sandbox subdomain per merchant; override by editing BASE_URL if your provisioned sandbox URL differs.

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

MCP C6

What it does

Install

Install Node.js

Sign up and create a MCP C6 key

Open the Claude desktop app’s settings file

Paste these settings and save the file

Quit Claude and open it again

Try it

What you can do instead

Install Node.js

Sign up and create a MCP C6 key

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Install Node.js

Sign up and create a MCP C6 key

Click this button to open Cursor

Fill in your key

Open the AI chat in Cursor in Agent mode

Try it

Install Node.js

Sign up and create a MCP C6 key

Click this button to open VS Code

Fill in your key

Open the AI chat in VS Code in Agent mode

Try it

Installed on your computer

Values you fill in

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Discussion

User reviews

Compared with others in Otheri

Common questions

Others in the same category

World Monitor

Claude Flow

Windmill

README from the maker

@codespar/mcp-c6

Status: alpha (0.1.0-alpha.1)

Tools (14)

Install

Environment

Authentication

Run

Caveats

Enterprise

License

Status: alpha (`0.1.0-alpha.1`)