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PopNx MCPMCP servers for people who use AI · explained in plain words

MCP Celcoin

by codesparversion 0.2.4i★ 279 (Stars for the whole repo)iRuns on your computer
Registry nameio.github.codespar/mcp-celcoin

How to install

What it does

MCP server for Celcoin — Pix, boleto, transfers, bill payments, top-ups

  • Connects Runs on your computer
  • Account or key Needs CELCOIN_CLIENT_SECRET
  • Category Other

Install

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

Passed 3/3 checks · Runs on your computer · ✓ Commands checked Nov 13, 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 Celcoin 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

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a MCP Celcoin 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. Open the Claude desktop app’s settings file

    SettingsDeveloperEdit Config

  4. Paste these settings and save the file

    {
      "mcpServers": {
        "celcoin": {
          "command": "npx",
          "args": [
            "-y",
            "@codespar/mcp-celcoin"
          ],
          "env": {
            "CELCOIN_CLIENT_SECRET": "your-value"
          }
        }
      }
    }

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

  5. Quit Claude and open it again

  6. Try it

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

    ✓ If Claude says it is using MCP Celcoin or shows a MCP Celcoin 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 Celcoin yet

MCP Celcoin 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 Celcoin

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

Works with Claude Code, with some setup first

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

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a MCP Celcoin 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. Open Terminal

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

  4. Paste this command and press Enter

    claude mcp add --scope user celcoin --env CELCOIN_CLIENT_SECRET=your-value -- npx -y @codespar/mcp-celcoin

    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

  5. Type /mcp in Claude Code

    You should see MCP Celcoin listed as connected

  6. Try it

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

    ✓ If Claude Code says it is using MCP Celcoin or shows a MCP Celcoin 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 Celcoin key (create it on the maker’s site) · Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a MCP Celcoin 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. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  4. Fill in your key

    In the MCP Celcoin settings, CELCOIN_CLIENT_SECRET is empty; add your key and save

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

  5. Open the AI chat in Cursor in Agent mode

  6. Try it

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

    ✓ If Cursor says it is using MCP Celcoin or shows a MCP Celcoin 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 Celcoin key (create it on the maker’s site) · Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a MCP Celcoin 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. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  4. Fill in your key

    In the MCP Celcoin settings, CELCOIN_CLIENT_SECRET is empty; add your key and save

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

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

  6. Try it

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

    ✓ If VS Code says it is using MCP Celcoin or shows a MCP Celcoin 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 Celcoin💬 Discussion →
For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user celcoin --env CELCOIN_CLIENT_SECRET=your-value -- npx -y @codespar/mcp-celcoin

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "celcoin": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-celcoin"
      ],
      "env": {
        "CELCOIN_CLIENT_SECRET": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "celcoin": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-celcoin"
      ],
      "env": {
        "CELCOIN_CLIENT_SECRET": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "celcoin": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-celcoin"
      ],
      "env": {
        "CELCOIN_CLIENT_SECRET": "your-value"
      }
    }
  }
}

Values you fill in

  • CELCOIN_CLIENT_SECRET secret required env
    API key for celcoin

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
172/wk
Connection
Runs on your computer
Latest versioni
0.2.4
Categoryi
Other
Published to registryi
Sep 27, 2026
Code last changedi
Nov 13, 2026
Maker
codespar
Packages
npm: @codespar/mcp-celcoin
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

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 14, 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 yesterday

  • ✓ 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.

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User reviews

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Compared with others in Otheri

  • More stars than 98% of the other 19785 servers in this category
  • Published to the registry more recently than 48% of the other 19785 servers in this category
  • Basic checks equal to or better than 100% of the other 19785 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 Celcoin 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: CELCOIN_CLIENT_SECRET

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 yesterday, and the latest version (0.2.4) 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. 97 tools.

by koala73Widely used★ 90.6KUpdated today

Runs in the cloud✓ service owner · worldmonitor.app

Claude Flow

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

by ruvnetWidely used↓ 13.5K/wk★ 81.7KUpdated 14 months ago

Runs on your computer

Windmill

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

by windmill-labsWidely used★ 18.6KUpdated 2 days ago

Runs in the cloud

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-celcoin

MCP server for Celcoin — BaaS infrastructure for Pix, boleto, transfers, and top-ups

Quick Start

Claude Desktop

Add to ~/.config/claude/claude_desktop_config.json:

{

"mcpServers": { "celcoin": { "command": "npx", "args": ["-y", "@codespar/mcp-celcoin"], "env": { "CELCOIN_CLIENT_ID": "your-client-id", "CELCOIN_CLIENT_SECRET": "your-client-secret", "CELCOIN_SANDBOX": "true" } } } }

Claude Code
claude mcp add celcoin -- npx @codespar/mcp-celcoin
Cursor / VS Code

Add to .cursor/mcp.json or .vscode/mcp.json:

{

"servers": { "celcoin": { "command": "npx", "args": ["-y", "@codespar/mcp-celcoin"], "env": { "CELCOIN_CLIENT_ID": "your-client-id", "CELCOIN_CLIENT_SECRET": "your-client-secret", "CELCOIN_SANDBOX": "true" } } } }

Tools (18)

ToolPurpose
create_pix_paymentCreate a Pix payment via Celcoin
get_pix_paymentGet Pix payment details by transaction ID
create_pix_cobCreate a Pix immediate charge (cob) — generates QR code / copia-e-cola for payer
get_pix_cobGet a Pix immediate charge by transactionId or txid
create_pix_cobvCreate a Pix due charge (cobv) — boleto-like Pix with due date
lookup_pix_dictLookup a Pix DICT key — resolves a Pix key to account holder + bank info
create_pix_devolutionCreate a Pix devolução (refund) — refund a received Pix transaction
cancel_boletoCancel a boleto issued via the bill-issuance product by id
read_barcodeAuthorize (consult) a boleto / concessionária barcode before paying — returns transactionId, amount, totalUpdated, dueDate
pay_billConfirm payment of a previously authorized bill — pass the read_barcode transactionId as transactionIdAuthorize
get_statementGet account statement (extrato) for a date range
list_topup_providersList telecom top-up providers (operadoras) available for recargas
create_boletoIssue a boleto via the bill-issuance product
get_boletoGet an issued boleto's details by id
create_transferCreate a bank transfer (TED/DOC) via Celcoin
get_balanceGet account balance at Celcoin
list_banksList available banks in Brazil (ISPB codes)
create_topupCreate a mobile/service top-up (recarga) via Celcoin

Authentication

Celcoin uses OAuth2 client credentials. The server automatically manages token refresh.

Sandbox / Testing

Celcoin provides a sandbox at sandbox.openfinance.celcoin.dev. Set CELCOIN_SANDBOX=true to use it.

Without CELCOIN_SANDBOX, the server calls Celcoin production at api.openfinance.celcoin.com.br (up to 0.2.3 the default was api-sec.celcoin.com.br, a host that does not exist). Celcoin accepts production calls only over mTLS, with a certificate Celcoin issues, and only from IPs you registered with them in advance (Celcoin docs). From any other IP the token call answers 401 "O seu IP ou certificado digital nao foi reconhecido". This server does not present a client certificate, so in production point CELCOIN_BASE_URL at a proxy that holds the certificate and terminates the mTLS; called directly, production answers that 401.

Get your credentials
  1. Go to Celcoin Documentation
  2. Create a developer account
  3. Register an application to get OAuth2 credentials
  4. Set the environment variables

Environment Variables

VariableRequiredDescription
CELCOIN_CLIENT_IDYesOAuth2 client ID
CELCOIN_CLIENT_SECRETYesOAuth2 client secret
CELCOIN_SANDBOXNoSet to "true" for sandbox mode
CELCOIN_BASE_URLNoOverride the API host. Defaults: https://api.openfinance.celcoin.com.br (production), https://sandbox.openfinance.celcoin.dev (sandbox)

Roadmap

v0.2 (planned)
  • get_pix_key — Get Pix key details (DICT lookup)
  • create_bill_payment — Create a bill/utility payment
  • get_bill_payment — Get bill payment details
  • create_scheduled_transfer — Create a scheduled transfer
  • list_providers — List available service providers
v0.3 (planned)
  • batch_topups — Process multiple mobile top-ups
  • detailed_reports — Generate detailed transaction reports

Want to contribute? Open a PR or request a tool.

Links

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