Sandbox
Test WhatsApp messaging without production credentials.
WhatsApp for developers
The fastest way to add official WhatsApp to your product. Send messages, receive webhooks, connect customer-owned numbers, and build AI-powered WhatsApp workflows.
Connect to WhatsApp in 2 minutes
Use a Kapso sandbox number, instant setup with a pre-verified number, or customer setup links for multi-tenant products.
Instant setup
Start with a Kapso-managed WhatsApp number.
Customer setup links
Let customers connect their own WhatsApp accounts to your product.
Build with API, CLI, MCP, and agent skills
Kapso is built for humans and AI agents. Use the CLI from a terminal, Kapso WhatsApp MCP for live WhatsApp operations, and Kapso agent skills inside coding tools.
curl -fsSL https://kapso.ai/install.sh | bash
kapso setup
kapso whatsapp messages send --phone-number "<phone-number-id>" --to 15551234567 --text "Hello"Start with Build with AI, Kapso WhatsApp MCP, or llms.txt.
Everything around the WhatsApp API
Messages and templates
Send text, media, templates, reactions, locations, buttons, lists, and WhatsApp Flows.
Webhooks and logs
Receive inbound messages and status events, then debug delivery from Kapso logs.
Inbox and workflows
Manage conversations, route work, run automations, and hand off to humans when needed.
Serverless functions
Deploy JavaScript functions for webhook processing, WhatsApp Flow data endpoints, and integrations.