Kapso

Kapso is a developer-focused platform for adding WhatsApp to a product. It offers a sandbox, managed numbers, customer connection links, an API, CLI, MCP server, Flows, webhooks, logs and a shared inbox with workflows.

Kapso is a developer platform for adding WhatsApp messaging to a product without wrestling with the raw setup. It covers the connection step, the messaging API, and the operational layer around it, so a team can move from a first test message to a working integration in a short stretch of time. Connecting a number can happen in three ways. A sandbox number lets developers try WhatsApp messaging without production credentials. A Kapso-managed number gives an instant start with a pre-verified line. For multi-tenant software, customer connection links let end users attach their own WhatsApp accounts to the host product. This makes the tool relevant to SaaS builders who need each of their customers to message from their own number. Day-to-day work happens through an API, a command line tool, a WhatsApp MCP server and agent skills for coding assistants. The CLI installs with a single shell command, runs a setup routine and can send a message straight from the terminal. The MCP server and skills position the platform for AI agents as much as for people, and the site points to an llms.txt file and a Build with AI guide. Around the API sit message types (text, media, templates, reactions, locations, buttons, lists and WhatsApp Flows), webhooks for inbound messages and status events, and logs for debugging delivery. Flows allow interactive forms, bookings, surveys and support intake to run inside the chat itself. An inbox and workflow layer handles conversations, routing, automations and handoff to human agents. A Slack integration lets a Kapso Agent operate a WhatsApp project from Slack. Compared with working directly against the WhatsApp Cloud API, Kapso trades some direct control for faster onboarding and bundled tooling. It suits developers and product teams who want WhatsApp as a channel and prefer ready-made logs, inbox and agent tooling over assembling them. Teams that need a no-code marketing broadcast tool will find it more engineering-oriented than that category.