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MR
MCP Reference Servers
by Anthropic
Official Model Context Protocol reference implementations.
MCP
Dev tools·open-source
ViewStreaming agents and tools for TypeScript apps.
by Vercel
TypeScript-first SDK for agents with streaming, tool calling, and structured output. MCP client built-in. Deploys free on Vercel.
by Anthropic
Official Model Context Protocol reference implementations.
by Google
Google's open protocol for agents speaking to agents.
by LangChain
Deploy stateful, long-running agents with built-in persistence.