WhatsApp Business API
Send and receive WhatsApp messages from your own software with the HostMentor WhatsApp Business API: templates, media, product catalogs, payments and webhooks.
The HostMentor WhatsApp Business API lets your software talk to your customers on WhatsApp, through a WhatsApp Business number connected to your HostMentor team. Each number has its own API keys, webhook and plan. You can:
- send text, images, documents, buttons, lists, product catalogs, payment requests and approved templates,
- receive your customers' replies, and delivery and read receipts, on your own webhook,
- manage message templates, media files, your product catalog and QR codes.
The API follows Meta's WhatsApp Cloud API. Request and response bodies use Meta's format, so Meta's guides and examples apply here too. Only the address, https://wa.hostmentor.com/v3, and the way you authenticate are different.
Start here
QuickstartSend your first message in three steps.AuthenticationUse your API key and keep it safe.The 24-hour windowWhen you can message freely, and when you need a template.WebhooksReceive messages and delivery statuses, and verify signatures.Use with AI assistantsConnect Claude, Cursor or VS Code to these docs with MCP.
API reference
MessagesText, media, buttons, lists, products, payments and templates.MediaUpload files to send, and download files customers send.TemplatesCreate and manage approved message templates.Template samplesUpload sample files for media templates.CatalogManage products and show them in chats.PaymentsTake payments inside WhatsApp (India).QR codesCodes and short links that open a chat.FlowsKeys for Flows that talk to your server.AccountYour numbers and business account.Webhook eventsEvery event and its payload.