Accept and verify Paystack payments, manage customers, plans and subscriptions, send transfers, issue refunds and read balances.
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.
io.w6w.paystackPaystack 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).
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.
customer-get Fetch a customer by code, with their transactions, subscriptions and authorizations.
customer-update Update a customer's name, phone or metadata. Only the fields given are sent.
refund-create Refund a successful transaction, in full or in part. Moves money back to the customer.
subscription-create Subscribe an existing customer to a plan. The customer must already have a reusable card authorization from a successful payment.
subscription-get Fetch a subscription by code, including its `email_token` and next payment date.
transaction-get Fetch a transaction by its numeric id. To look one up by reference use Verify.
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.
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.
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.
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>"
}
}
]
}customer-create balance-get bank-list customer-get 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.
npm install @w6w/sdkyarn add @w6w/sdkpnpm add @w6w/sdkdeno add npm:@w6w/sdkimport { 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); npm install -g @w6w/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.
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.
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.
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.
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).
Paystack declares its own checks, so its health is a property of the app rather than something the host guesses at.
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.