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AA
Agent2Agent (A2A) Samples
by Google
Google's open protocol for agents speaking to agents.
A2A
Dev tools·open-source
ViewOfficial Model Context Protocol reference implementations.
by Anthropic
Filesystem, Git, Slack, GitHub, Postgres and a dozen more reference MCP servers. The canonical starting point for any MCP-enabled agent stack.
by Google
Google's open protocol for agents speaking to agents.
by LangChain
Deploy stateful, long-running agents with built-in persistence.
by Composio
250+ tool integrations exposed as a single MCP server.