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MCP Reference Servers
by Anthropic
Official Model Context Protocol reference implementations.
MCP
Dev tools·open-source
ViewGoogle's open protocol for agents speaking to agents.
by Google
Reference agents and samples demonstrating the A2A protocol: discovery, task delegation, streaming results. The protocol is backed by 50+ partners including Atlassian, Salesforce, SAP and LangChain.
by Anthropic
Official Model Context Protocol reference implementations.
by LangChain
Deploy stateful, long-running agents with built-in persistence.
by Mistral AI
Production agents with web search, code interpreter, image gen.