Comparison
A2A vs AGNTCY
A2A and AGNTCY are Protocols listings set side by side. A2A is live. AGNTCY is live. Open protocol, hosted by the Linux Foundation, for agents to discover each other through Agent Cards and collaborate over HTTP using JSON-RPC. Open stack, hosted by the Linux Foundation, for cross vendor agent discovery, identity, messaging, and observability.
Last verified 2026-10-16 (A2A), 2026-10-16 (AGNTCY)
Sources
| Field | A2A | AGNTCY |
|---|---|---|
| Status | Live | Live |
| Open source | Yes | Yes |
| Last verified | 2026-10-16 | 2026-10-16 |
| Mechanism | Open protocol, hosted by the Linux Foundation, for agents to discover each other through Agent Cards and collaborate over HTTP using JSON-RPC. | Open stack, hosted by the Linux Foundation, for cross vendor agent discovery, identity, messaging, and observability. |
| Tags | discovery, agent-cards, json-rpc | discovery, identity, messaging |
| Links | ||
| Sources |
Tags
- Shared
- discovery
- Only A2A
- agent-cards, json-rpc
- Only AGNTCY
- identity, messaging
Glossary
Questions
- What is the status of A2A and AGNTCY?
- A2A is live. AGNTCY is live.
- When was each listing last verified?
- A2A was last verified 2026-10-16. AGNTCY was last verified 2026-10-16.
- Does this page score A2A against AGNTCY?
- No. The page restates each mechanism and cites the listing sources.