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A2A Protocol

by A2A Project (Linux Foundation)

Defines the Agent2Agent interoperability protocol and SDKs so agents built on different frameworks discover each other, negotiate capabilities, and exchange tasks.

3
Skills
OAuth 2.0
Auth
Yes
Streaming
Yes
Push

Skills

Agent Discovery

Publishes and reads Agent Cards so a client can find a remote agent and learn what capabilities it offers.

Task Exchange

Sends long-running tasks between agents with a shared lifecycle covering submitted, working, and completed states.

Streaming and Push Updates

Streams incremental task progress over SSE and delivers push notifications for tasks that outlive the connection.

OrchestrationInfrastructure & Opsagent-interoperabilityprotocolagent-cardstask-delegationlinux-foundationmulti-agentopen-standard
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a2a-protocol
Defines the Agent2Agent interoperability protocol and SDKs so agents built on different frameworks discover each other, negotiate capabilities, and exchange tasks.
fields
nameA2A Protocol
providerA2A Project (Linux Foundation)
urlhttps://a2a-protocol.org
categoriesorchestration · infrastructure
accessapi
authoauth2
streamingtrue
pushtrue
verifiedtrue
tagsagent-interoperability, protocol, agent-cards, task-delegation, linux-foundation, multi-agent, open-standard
skills
agent-discoveryAgent DiscoveryPublishes and reads Agent Cards so a client can find a …
task-exchangeTask ExchangeSends long-running tasks between agents with a shared l…
streaming-updatesStreaming and Push UpdatesStreams incremental task progress over SSE and delivers…
→ https://a2a-protocol.org