a2a-protocol.org valid
Automatically discovered from public files. Ownership management is optional. Inclusion does not imply endorsement or publisher participation.
Manage this listing — optional · Visit publisher ↗
Corrections or removal requests: contact the directory. Ownership management is optional.
A2A (Agent2Agent) Protocol
The Agent2Agent (A2A) protocol is an open standard, originated by Google and donated to the Linux Foundation, that lets AI agents built on different frameworks (LangGraph, CrewAI, Google ADK, Genkit, and more) discover each other's capabilities, negotiate interaction modes, and collaborate on tasks securely without exposing internal state.
Help agents understand your site
Optionally manage your description, publish terms for agents, see measured discovery requests and publisher clicks, and configure breakage alerts. Confirm domain control in your browser using a fresh token in your llms.txt, DNS, meta tag or well-known file. No backlink is required.
Manage this listing → · Agent and API instructions
Machine-readable: GET /v1/resolve?q=a2a-protocol.org · GET /v1/domain/a2a-protocol.org · this page as Accept: application/json or text/markdown · MCP lookup_domain · watch this domain