First-party app
Paystack

Paystack

Accept and verify Paystack payments, manage customers, plans and subscriptions, send transfers, issue refunds and read balances.

stable Commerce & Payments

About

Paystack ships in the w6w first-party pack. It declares 20 actions, 2 health checks, and the host runs its code in a sandbox that never sees the credential.

App id
io.w6w.paystack
Version
0.1.0
Author
w6w
Licence
MIT
Categories
Commerce & Payments

Overview

Paystack is a payments platform for businesses in Nigeria, Ghana, Kenya, South Africa and Cote d’Ivoire. This app lets a workflow start a checkout (initialize a transaction and hand the customer the authorization URL), verify the outcome by reference, and list or fetch past transactions.

It also manages the records around a payment: customers, subscription plans and the subscriptions on them; creates transfer recipients and sends payouts from the Paystack balance; issues full or partial refunds; and reads bank lists and balances.

Connect with a secret key (sk_test_ or sk_live_) from Dashboard > Settings > API Keys & Webhooks. Amounts are always in the currency’s smallest unit (kobo, pesewas, cents).

Build with Paystack

Three routes to the same 20 actions. The Workflow tab is generated from Paystack's own manifest and carries its real ids, so it is copy-pasteable; the Code and CLI examples are the same call for any action on any app, so every app-specific value in them is a blank you fill in.

Get Balance

balance-get

Read the integration's balance per currency (smallest unit).

List Banks

bank-list

List banks and mobile-money providers for a country or currency.

Create Customer

customer-create

Create a customer record. Paystack de-duplicates on email.

Get Customer

customer-get

Fetch a customer by code, with their transactions, subscriptions and authorizations.

List Customers

customer-list

List customers on the integration.

Update Customer

customer-update

Update a customer's name, phone or metadata. Only the fields given are sent.

Create Plan

plan-create

Create a recurring-billing plan that customers can be subscribed to.

List Plans

plan-list

List subscription plans.

Create Refund

refund-create

Refund a successful transaction, in full or in part. Moves money back to the customer.

List Refunds

refund-list

List refunds, newest first.

Create Subscription

subscription-create

Subscribe an existing customer to a plan. The customer must already have a reusable card authorization from a successful payment.

Get Subscription

subscription-get

Fetch a subscription by code, including its `email_token` and next payment date.

List Subscriptions

subscription-list

List subscriptions, optionally for one customer or plan.

Get Transaction

transaction-get

Fetch a transaction by its numeric id. To look one up by reference use Verify.

Initialize Transaction

transaction-initialize

Create a transaction and get the hosted checkout `authorization_url` to send the customer to. Give a unique `reference` to make a retry safe: Paystack refuses a duplicate reference.

List Transactions

transaction-list

List transactions, newest first, optionally filtered.

Verify Transaction

transaction-verify

Look a transaction up by reference. Check `status` is `success` (and the amount/currency) before giving value; the call itself succeeding does not mean the payment did.

Get Transfer

transfer-get

Fetch a transfer by code or numeric id and read its `status`.

Initiate Transfer

transfer-initiate

Send money from the Paystack balance to a transfer recipient. Pass a unique `reference` so a retry cannot pay twice: Paystack rejects a duplicate reference.

Create Transfer Recipient

transfer-recipient-create

Register a bank or mobile-money account as a payout recipient.

A workflow step names the app and the action, and the editor fills in the connection when you pick one. This is the Step shape from the workflow spec, carrying Paystack's real ids.

{
  "manifestVersion": "2",
  "name": "paystack-example",
  "steps": [
    {
      "id": "customer-create",
      "uses": {
        "app": "io.w6w.paystack",
        "action": "customer-create",
        "connection": "conn_YOUR_CONNECTION_ID"
      },
      "with": {
        "email": "<email>"
      }
    }
  ]
}

Here are some of the things you can do

  • Create Customer

    perform
    customer-create
  • Get Balance

    read
    balance-get
  • List Banks

    read
    bank-list
  • Get Customer

    read
    customer-get
  • List Customers

    read
    customer-list

+15 more actions available

Every app-specific value here is a blank you have to fill in. An app action is reached through the connection that authenticates it, so the address is a connection id, not the app id — and connections belong to your account, so a public page cannot know yours. Create one for Paystack, then fill in the three blanks: conn_YOUR_CONNECTION_ID, the action key, and the parameters that action declares. The call itself is real — the shape is transcribed from the studio's own snippet builder, which prints the same kind of blanks — but nothing in it is specific to Paystack. The Workflow tab is where this app's real ids are.

Install
npm install @w6w/sdk
yarn add @w6w/sdk
pnpm add @w6w/sdk
deno add npm:@w6w/sdk
Code
import { W6wClient, isActionRun } from "@w6w/sdk";

// Reads W6W_BASE_URL and W6W_TOKEN from the environment when omitted.
const client = new W6wClient();

const envelope = await client.run({
  urn: "conn_YOUR_CONNECTION_ID",
  action: "customer-create",
  payload: {
    email: "<value>",
    // firstName: "<value>",
    // lastName: "<value>",
    // phone: "<value>",
    // metadata: "<value>",
  },
});

if (isActionRun(envelope)) console.log(envelope.value);
Install the CLI
npm install -g @w6w/cli
CLI
w6w run conn_YOUR_CONNECTION_ID --action customer-create --payload '{"email":"<value>"}'

Give an AI agent Paystack — without giving it Paystack's credentials. One MCP endpoint exposes every app, function and workflow the caller is entitled to, as tools it can discover and run. Access is granted per team while we onboard.

One tool call
{
  "name": "w6w_invoke",
  "arguments": {
    "ref": "app:io.w6w.paystack#customer-create",
    "input": {
      "email": "<email>"
    }
  }
}

Every tool names its target with a single ref. The app: form above doesn't name a connection at all — the host resolves which of the caller's Paystack connections to sign with, and refuses rather than guesses when the answer is ambiguous.

What the agent gets

Credentials it can't read

The token is attached host-side, at the moment of the call. It is never a tool argument, never in the model's context, and never in a transcript — so a prompt injection has nothing to exfiltrate.

A tool surface scoped to the caller

Tools are derived per end user from what that person has actually connected and is entitled to — not one shared bot identity carrying the union of everyone's access.

A durable workflow in one call

Multi-step work runs on the workflow engine and returns a run handle the agent can poll — retries, branching and state survive the conversation that started them.

Health-aware discovery

Paystack's declared health checks are on the surface too, so an agent can tell "the vendor is down" from "your credential expired" before it burns a retry on either.

The MCP surface is part of the hosted platform. Paystack itself is MIT, and the runtime that executes it is source-available (FSL).

Request MCP access

Health checks

Paystack declares its own checks, so its health is a property of the app rather than something the host guesses at.

service

Paystack platform status

The `API` component on status.paystack.com (Instatus). Webhooks, Refunds and the per-country channel components are reported as detail but never drive the verdict.

quota

Quota headroom