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Monad (MON) API Documentation

Monad

Monad (MON) is an EVM-compatible Layer 1 using MonadBFT consensus, with public mainnet launched on November 24, 2025 and parallel execution designed to preserve Ethereum transaction semantics. Solidity contracts compile to EVM bytecode against account-based state, while full nodes order transactions, execute them in parallel where possible, and maintain resulting state through MonadDB. Because execution remains EVM-compatible despite different consensus and database internals, standard Ethereum bytecode, transaction formats, tooling, and JSON-RPC conventions carry over directly.

Monad API Methods and Endpoints

NOWNodes exposes Monad's interface, plus a few others, depending on what your integration needs: JSON-RPC for reading chain state and broadcasting transactions.

Browse the interfaces below for endpoint details, request parameters, response formats, and integration examples. Create an API key, select Mainnet or Testnet, choose the required interface, and start sending requests from your application.

Weighing Monad RPC providers against each other? Read the comparison guide on our blog — this page stays focused on integration reference.

Quick start

01

Get an API key

Sign up and generate a free key from the dashboard.

Get key →
02

Select environment

Mainnet or Sepolia testnet.

03

Choose an interface

RPC, WSS, Blockbook, or Trace/Debug.

04

Send a request

Call it from your application.

RPCJSON-RPCStandard RPC methods for reading chain state and broadcasting transactions.Node APIs →WSSWebSocketPersistent connections for new blocks, pending transactions, and log events as they happen.WSS API →T/DTrace & DebugStep-level execution traces for inspecting calls and diagnosing transactions.Trace & Debug API →ARCArchive modeFull historical state access beyond standard node retention.Archive nodes →MCPModel Context ProtocolThe Model Context Protocol (MCP) is an open standard that lets AI assistants call external tools through a uniform interface.MCP →

Ready to build on: MON

Create a free API key and start sending requests in minutes.