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Smart contract and Monad developer guides
Free, in-depth guides on Monad, Solidity, smart contract security, gas optimisation, and developer tooling, written by Monsmith founder Adwait Keshari. Deploy on Monad, write parallel-friendly Solidity, compare IDEs, and more.
Written by Adwait Keshari, founder of Monsmith.
The complete Monsmith guide for Monad builders
A five-minute quickstart to a deployed contract, one page per stage of the workflow with real screenshots, an hour-by-hour plan for a Monad Blitz day, a week-by-week plan for a Metropolis submission, and the reference tables. Free, no sign-in, kept current with the product.
- Quickstart
- The workflow
- Hackathon plans
- Monad in plain language
- Reference
Monad
- Beginner · 7 min read
What is Monad? The parallel EVM blockchain explained for developers
Monad is an EVM-compatible Layer 1 with optimistic parallel execution, 300 ms blocks, 600 ms finality, and a 10,000 TPS target. Here is what changes for Solidity developers and what stays the same.
Read guide - Beginner · 8 min read
How to deploy a smart contract on Monad (step by step, from the browser)
Deploy a Solidity smart contract to Monad testnet in under ten minutes using only a browser: add the network to MetaMask, get test MON, compile in Monsmith, and deploy with one click.
Read guide - Beginner · 5 min read
Monad testnet guide: chain ID, RPC URL, faucet, explorer, and wallet setup
Everything you need to connect to Monad testnet: chain ID 10143, the RPC URL, the faucet, the block explorer, and how to add it to MetaMask, Hardhat, and Foundry.
Read guide - Intermediate · 8 min read
Monad vs Ethereum for smart contract developers: speed, gas, finality, and what changes in your code
A developer-focused comparison of Monad and Ethereum: block time, finality, gas cost, contract size limits, parallel execution, and the handful of things you should change when you move a contract over.
Read guide - Advanced · 9 min read
How to write Solidity that runs in parallel on Monad
Practical patterns for parallel-friendly Solidity: avoid shared counters, partition storage by user, keep hot paths off global state, and measure contention with a dependency graph.
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Gas
- Intermediate · 6 min read
Monad gas fees explained: how fees are calculated, why the gas limit matters, and how to pay less
Monad charges transaction fees on the gas limit, not the gas used. Here is what that means, how it compares to Ethereum, and how to keep deployment and call costs low.
Read guide - Intermediate · 8 min read
Smart contract gas optimization: 15 techniques that actually move the number
Concrete Solidity gas optimisation techniques ranked by impact: storage layout, calldata, custom errors, loops, events, and the measurement habit that makes them stick. Includes Monad-specific notes.
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Solidity
- Beginner · 6 min read
What is a smart contract? A plain-English explanation with a real example
A smart contract is a program on a blockchain that runs exactly as written when someone sends it a transaction. Here is how they work, what they are used for, and a real ten-line example you can deploy.
Read guide - Beginner · 8 min read
How to learn Solidity in 2026: a practical path from zero to deployed contract
A no-fluff roadmap for learning Solidity: the concepts in order, the mistakes to expect, the tools to use, and a first project you can deploy to Monad testnet this week.
Read guide - Beginner · 5 min read
ERC-20 vs ERC-721 vs ERC-1155: which token standard should you use?
The three main EVM token standards compared: fungible ERC-20, non-fungible ERC-721, and multi-token ERC-1155. What each is for, how they differ in gas and interface, and how to pick.
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Tooling
- Beginner · 4 min read
Solidity online compiler: compile and deploy smart contracts in your browser with no setup
Compile Solidity online in seconds. Monsmith is a browser Solidity compiler and IDE with OpenZeppelin imports, inline errors, ABI and bytecode output, AI auditing, and one-click deployment to Monad.
Read guide - Beginner · 7 min read
Best smart contract IDEs in 2026: Remix vs Hardhat vs Foundry vs Monsmith
An honest comparison of the main Solidity development environments in 2026, browser and local, with what each is best at and which to pick for learning, prototyping, Monad, and production.
Read guide - Beginner · 5 min read
Monsmith vs Remix IDE: which browser IDE should you use for Monad?
Monsmith and Remix are both free browser Solidity IDEs. Remix is the general-purpose standard; Monsmith is built for Monad with AI auditing, a parallel profiler, and live cross-chain gas comparison. Here is a fair comparison.
Read guide - Intermediate · 5 min read
Monsmith vs Hardhat vs Foundry: browser IDE or local toolchain for Monad development?
When a browser IDE is enough and when you need Hardhat or Foundry. How Monsmith fits alongside local toolchains for Monad smart contract development.
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Security
- Intermediate · 8 min read
Smart contract security checklist: 20 checks before you deploy
A practical pre-deployment security checklist for Solidity smart contracts covering reentrancy, access control, external calls, arithmetic, upgrades, and operational safety.
Read guide - Intermediate · 6 min read
AI smart contract audit: what automated auditing catches, what it misses, and how to use it well
How AI-assisted smart contract auditing works, the vulnerability classes it reliably finds, where it falls short, and how to combine it with static analysis and human review.
Read guide - Advanced · 5 min read
How Kimi K3 writes the threat model behind every Monsmith audit
Monsmith audits a contract against a threat model derived from that contract's own assets and invariants. Kimi K3 writes it. Here is why that pass matters most, what Kimi produced for The DAO, and how it is kept fast.
Read guide - Advanced · 6 min read
Why Monsmith has Qwen 3.8 Max cross-examine every finding before it reaches a report
How Monsmith uses Qwen 3.8 Max as an independent reviewer in its smart contract audit: why the reviewer comes from a different model family, the rule that it must cite a line to reject anything, what it did on The DAO, and what we had to fix to run it.
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