# Introduction Tendermint supports the following RPC protocols: * URI over HTTP * JSONRPC over HTTP * JSONRPC over websockets Tendermint RPC is built using our own RPC library which contains its own set of documentation and tests.

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HTTP RPC server supporting calls via uri params, jsonrpc, and jsonrpc over websockets Client Requests Suppose we want to expose the rpc function `HelloWorld(name string, num int)`.