MCP Payway

Name: MCP Payway
Author: codespar

by codesparversion 0.1.0i★ –iRuns on your computer

Registry nameio.github.codespar/mcp-payway

Install

Overview

Description from the maker (original English)

Payway (ex-Decidir) — Argentina card acquiring: tokenize, charge, capture, refund

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

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: PAYWAY_PUBLIC_API_KEY, PAYWAY_PRIVATE_API_KEY

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: PAYWAY_PUBLIC_API_KEY, PAYWAY_PRIVATE_API_KEY, PAYWAY_ENV

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?

ClaudeClaude CodeCursorVS CodeChatGPT

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": {
    "payway": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-payway"
      ],
      "env": {
        "PAYWAY_PUBLIC_API_KEY": "your-value",
        "PAYWAY_PRIVATE_API_KEY": "your-value",
        "PAYWAY_ENV": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add payway --env PAYWAY_PUBLIC_API_KEY=your-value --env PAYWAY_PRIVATE_API_KEY=your-value --env PAYWAY_ENV=your-value -- npx -y @codespar/mcp-payway

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": {
    "payway": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-payway"
      ],
      "env": {
        "PAYWAY_PUBLIC_API_KEY": "your-value",
        "PAYWAY_PRIVATE_API_KEY": "your-value",
        "PAYWAY_ENV": "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": {
    "payway": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-payway"
      ],
      "env": {
        "PAYWAY_PUBLIC_API_KEY": "your-value",
        "PAYWAY_PRIVATE_API_KEY": "your-value",
        "PAYWAY_ENV": "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

PAYWAY_PUBLIC_API_KEY secret required env
Payway PUBLIC apikey — used only by create_token (card tokenization)
PAYWAY_PRIVATE_API_KEY secret required env
Payway PRIVATE apikey — payments, captures, refunds and queries
PAYWAY_ENV env
Environment: 'sandbox' or 'production'. Defaults to 'sandbox' (Decidir sandbox host).

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 32545 servers in this category
Published to the registry more recently than 15% of the other 32545 servers in this category
Basic checks equal to or better than 100% of the other 32545 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 Payway 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: PAYWAY_PUBLIC_API_KEY, PAYWAY_PRIVATE_API_KEY

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 (0.1.0) reached the registry 4 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: Spec Driven Development, Remote Desktop Commander, Python MCP

Alternatives

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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-payway

MCP server for Payway (ex-Prisma Medios de Pago / Decidir) — Argentina's dominant card-acquiring gateway: card tokenization, one-step and two-step charges, installments (cuotas), marketplace split and refunds.

Quick Start

Claude Desktop

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

"mcpServers": { "payway": { "command": "npx", "args": ["-y", "@codespar/mcp-payway"], "env": { "PAYWAY_PUBLIC_API_KEY": "your-public-apikey", "PAYWAY_PRIVATE_API_KEY": "your-private-apikey", "PAYWAY_ENV": "sandbox" } } } }

Claude Code

claude mcp add payway -- npx @codespar/mcp-payway

Cursor / VS Code

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

"servers": { "payway": { "command": "npx", "args": ["-y", "@codespar/mcp-payway"], "env": { "PAYWAY_PUBLIC_API_KEY": "your-public-apikey", "PAYWAY_PRIVATE_API_KEY": "your-private-apikey", "PAYWAY_ENV": "sandbox" } } } }

Authentication

Payway authenticates with a single raw header named apikey (not Authorization: Bearer). Two co-equal keys exist with different powers — see the table below.

The two-key model

Payway issues two co-equal API keys with different powers:

Key	Header	May call
Public	`apikey`	`POST /tokens` (card tokenization only)
Private	`apikey`	Everything else: payments, captures, refunds, queries

The auth header is a single raw header named apikey — not Authorization: Bearer.

Tools (6)

Tool	Endpoint	What it does
`create_token`	`POST /tokens`	Tokenize card data into a single-use payment token (public key)
`create_payment`	`POST /payments`	Charge a token — single sale or distributed/split, with installments
`get_payment`	`GET /payments/{id}`	Fetch a payment by id
`list_payments`	`GET /payments`	List payments (offset, pageSize, siteOperationId, merchantId)
`refund_payment`	`POST /payments/{id}/refunds`	Full refund (empty body) or partial (`amount` in minor units)
`confirm_payment`	`PUT /payments/{id}`	Capture a previously authorized payment (two-step flow)

Environment

Variable	Required	Description
`PAYWAY_PUBLIC_API_KEY`	yes	Public apikey (tokenization)
`PAYWAY_PRIVATE_API_KEY`	yes	Private apikey (payments, refunds, queries)
`PAYWAY_ENV`	no	`sandbox` (default, Decidir sandbox host) or `production`

Base URLs: production https://ventasonline.payway.com.ar/api/v2, sandbox https://developers.decidir.com/api/v2.

Notes

Amounts are integers in minor units: 50000 = ARS 500.00.
payment_method_id identifies the card brand (1 = Visa, 31 = Mastercard, 15 = Maestro, …).
site_transaction_id is the merchant-side idempotency anchor — unique per sale.
This server never invents card data; agents must collect PAN/expiry/CVV from the user or a vault.

Enterprise

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

MCP Payway

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

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

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Python MCP

README from the maker

@codespar/mcp-payway

Quick Start

Claude Desktop

Claude Code

Cursor / VS Code

Authentication

The two-key model

Tools (6)

Environment

Notes

Enterprise

License