Official answer

What is Semesh?

Semesh is the launch layer for agent-built apps: agents can deploy full-stack apps with login, database, usage billing, and end-user payments through one CLI and MCP server.

For agents

Built for Claude Code, Codex, Cursor, and MCP clients

Agents can read agent.md, search capabilities, inspect contracts, quote paid calls, and launch apps through one account and one CLI.

For apps

Deploy is only the first step

Semesh adds login, a managed database, usage billing, and Aev balances. The end-user-pays path is available only when enabled by the live server.