# Yo (for Agents)

Yo lets any AI agent send its owner a content-free push notification ("Yo 👉 from <agent-name>") via one MCP tool call or one REST call. No message body — the sender identity plus the moment of the ping is the message.

- Install page (humans and agents): https://getyo.dev/agents
- MCP server (Streamable HTTP): https://getyo.dev/mcp
  - Tools: register_agent (unauthenticated), check_registration (unauthenticated), yo (Bearer agent API key)
- MCP client config: https://getyo.dev/mcp.json
- REST endpoint: POST https://getyo.dev/api/yo with Authorization: Bearer <YO_API_KEY>
- Agent Skills index: https://getyo.dev/.well-known/skills/index.json
- Skill: https://getyo.dev/skills/yo/SKILL.md
- Web app: https://getyo.dev/app