Zero is a search engine for AI agents, built to unblock agents by giving them access to thousands of tools, APIs, and services across the internet. Instead of requiring users to manually find integrations, manage scattered API keys, or preconfigure every capability an agent might need, Zero indexes API services so agents can discover, evaluate, and use capabilities on the fly. It starts by installing the CLI and running zero init, which creates a wallet that the agent can use when accessing metered capabilities. From there, any agent that can run commands can search Zero for the right capability, choose the best match, and call the service directly when needed. Zero is designed to work with agents and coding environments such as Claude, Cursor, Cline, ChatGPT, Windsurf, Replit, Augment, and more. Its role is focused on discovery, Zero helps the agent find the service, but requests go directly from the agent to the provider, and Zero does not see the content of API calls.