Comparison
A2A vs Model Context Protocol
A2A and Model Context Protocol are Protocols listings set side by side. A2A is live. Model Context Protocol 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.
Last verified 2026-10-16 (A2A), 2026-10-16 (Model Context Protocol)
Sources
| Field | A2A | Model Context Protocol |
|---|---|---|
| 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 protocol that connects LLM applications to external tools, resources, and prompts through a standard request interface. |
| Tags | discovery, agent-cards, json-rpc | tools, resources, prompts |
| Links | ||
| Sources |
Tags
- Shared
- None
- Only A2A
- discovery, agent-cards, json-rpc
- Only Model Context Protocol
- tools, resources, prompts
Glossary
Questions
- What is the status of A2A and Model Context Protocol?
- A2A is live. Model Context Protocol is live.
- When was each listing last verified?
- A2A was last verified 2026-10-16. Model Context Protocol was last verified 2026-10-16.
- Does this page score A2A against Model Context Protocol?
- No. The page restates each mechanism and cites the listing sources.