PayPal payment links over WhatsApp. With Arbol, in the same conversation where it books.
How it works
The patient writes on WhatsApp to ask for an appointment or a price.
Arbol quotes the amount from your clinic's price list.
It sends the PayPal payment link in the same conversation.
It keeps a record of who received the link and how it ended.
What each one is
Customer messaging
WhatsApp
WhatsApp Business is WhatsApp's (Meta) offering for companies, and it comes in two versions. The WhatsApp Business app is free and built for small businesses: a business profile, a product showcase and automated replies, with limited customization and integration. The WhatsApp Business Platform is for medium and large businesses: it gives API access to message customers at scale, connect other systems and send template messages, which are billed per message.
Confirm appointments, send reminders and answer patient questions on the channel they already use.
WhatsApp has more than 3 billion monthly users, according to Mark Zuckerberg on Meta's first-quarter 2025 earnings call. Source: techcrunch.com (opens in a new tab)
Meta publishes the WhatsApp Business Platform Cloud API, built on the Graph API, to send text, media, interactive and template messages and to receive incoming messages and delivery statuses by webhook.
WhatsApp integrationOnline payments and digital wallet
PayPal
PayPal is a digital payments company operating in about 200 markets. People pay with their PayPal account or a card, and businesses get paid through payment buttons and links, invoices and recurring payments, receiving funds in their preferred currency.
Bill patients from abroad for visits and treatments with a payment link or invoice they can pay with PayPal or a card.
In Q2 2026, PayPal's total payment volume grew 10% to USD 486.4 billion, and the company ended the quarter with 439 million active accounts. Source: investor.pypl.com (opens in a new tab)
PayPal publishes REST APIs with OAuth 2.0 and a sandbox for testing, to create orders and capture payments, issue invoices, manage subscriptions and disputes, and receive webhook notifications.
PayPal integration
Questions
Does the money go through Arbol?
No. The payment happens in PayPal, into your organization's account. Arbol sends the link and records the conversation.
Do WhatsApp or PayPal endorse Arbol?
No. WhatsApp and PayPal are trademarks of their owners and do not sponsor or endorse Arbol. Arbol works on your organization's side, with the accounts and processes you already have with each.
What happens to patient data?
They are health data, sensitive under your country's data protection law: processed for a stated purpose, with the patient's authorization and with encryption and isolation per organization. Every conversation is recorded and exportable.
Trademarks and logos belong to their owners. WhatsApp and PayPal do not sponsor or endorse Arbol. All integrations · Arbol's API
Let's look at WhatsApp and PayPal in your operation.
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