First-party app
Payhip Payhip

Payhip

Verify, enable, disable and count uses of Payhip software license keys (the only thing Payhip's public API covers).

stable Commerce & Payments

About

Payhip ships in the w6w first-party pack. It declares 5 actions, 2 health checks, and the host runs its code in a sandbox that never sees the credential.

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

Overview

Payhip sells digital products, and its public API covers one thing: the software license keys it issues with a sale. This app lets a workflow verify a key, enable or disable it, and raise or lower its use count, so an activation flow or a refund-handling flow can gate access on a real purchase.

Verify is read-only and does not consume a use. Connect with a per-product secret key (current v2 API, safe for one product) or the legacy account API key. Products, orders, customers and payouts are not exposed by Payhip’s API and are not covered.

Build with Payhip

Three routes to the same 5 actions. The Workflow tab is generated from Payhip'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.

Disable License Key

license-disable

Disable a license key, for example when a customer breaks your terms of service.

Enable License Key

license-enable

Re-enable a disabled license key. Payhip disables a key automatically when its transaction is refunded.

Decrease License Usage

license-usage-decrease

Remove one from a license key's use count (a deactivation). Not idempotent: a retry counts twice.

Increase License Usage

license-usage-increase

Add one to a license key's use count (an activation). Not idempotent: a retry counts twice.

Verify License Key

license-verify

Look up a license key and return whether it is enabled, its buyer and its use count. Read-only: it does not count a use (use Increase License Usage for that). An unknown key, a wrong secret and a failed lookup all come back as found: false.

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 Payhip's real ids.

{
  "manifestVersion": "2",
  "name": "payhip-example",
  "steps": [
    {
      "id": "license-disable",
      "uses": {
        "app": "io.w6w.payhip",
        "action": "license-disable",
        "connection": "conn_YOUR_CONNECTION_ID"
      },
      "with": {
        "licenseKey": "<licenseKey>"
      }
    }
  ]
}

Here are some of the things you can do

  • Disable License Key

    perform
    license-disable
  • Enable License Key

    perform
    license-enable
  • Decrease License Usage

    perform
    license-usage-decrease
  • Increase License Usage

    perform
    license-usage-increase
  • Verify License Key

    read
    license-verify

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 Payhip, 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 Payhip. 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: "license-disable",
  payload: {
    licenseKey: "<value>",
    // apiVersion: "<value>",
    // productLink: "<value>",
  },
});

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

Give an AI agent Payhip — without giving it Payhip'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.payhip#license-disable",
    "input": {
      "licenseKey": "<licenseKey>"
    }
  }
}

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 Payhip 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

Payhip'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. Payhip itself is MIT, and the runtime that executes it is source-available (FSL).

Request MCP access

Health checks

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

service

Platform status

quota

Rate limit headroom