Agents your customers can text.

Put your product in iMessage, WhatsApp, and Slack so customers can use it without opening your app.

Describe the job

Describe the job in plain words, or start from your website or a template. Keiki writes the instructions, tone, and limits for you, and you can change any of it.

Teach it your product

Add your docs, policies, and site. Give it your API or MCP server, with only the actions you allow, or write the actions it needs in Keiki.

Go live

The same agent answers on every channel with the same memory and rules. Teams use it to help their customers, run events, keep a founder's day on track, and take care of a team's group chat.

You stay in charge

Read every conversation, see each step it took, approve sensitive actions, and step in yourself whenever a person should take over.

For developers

Already built an agent? Bring it. Keiki has an API, an OpenAPI spec, an MCP server, and AgentKit docs, with scoped API keys for your team.

• Developer portal and quickstart
• OpenAPI specification
• Agent API documentation
• Agent-readable product instructions
• About Keiki and Zero Email, Inc.
• Privacy policy
• Product, support, privacy, and security contact