Featured
MR
MCP Reference Servers
by Anthropic
Official Model Context Protocol reference implementations.
MCP
Dev tools·open-source
ViewLet agents transact: payments, subscriptions, refunds.
by Stripe
Official SDK exposing Stripe primitives as agent tools. Used for autonomous checkout, metered usage billing, and M2M payments.
by Anthropic
Official Model Context Protocol reference implementations.
by LangChain
Deploy stateful, long-running agents with built-in persistence.
by Composio
250+ tool integrations exposed as a single MCP server.