What it is
A browser lab for Monad testnet, the EVM compatible chain 10143. It reads blocks, gas, balances, contract code, nonces and transactions, and it can drive your wallet for testnet transfers.
Monad testnet lab with receipts
Question Monad testnet. Keep the proof.
Monad Agent Desk turns plain questions into read only JSON RPC calls on Monad testnet, chain 10143, explains the answer and seals every call into a SHA 256 receipt you can verify and export. Connect an EVM wallet such as MetaMask, Phantom or Rabby to switch to testnet and send a test transfer.
Live from testnetchain 10143
latest block…
gas price…
Who it is for
Builders moving contracts or agents to Monad, hackathon teams and anyone who needs a quick, checkable look at testnet state without writing a script.
What it solves
An explorer page is not evidence. Here every answer carries the exact method, parameters, timing and a hash, so you can attach it to a bug report or an agent log and show where the numbers came from.
The desk
Write a question or pick a tool, then press Run. Answers come from the public Monad testnet RPC through a read only relay with no keys.
No runs yet
Ask a question or press Run a network briefing at the top. Each answer will appear here with its receipt.
How receipts work
What is inside a receipt, and what it does and does not prove.
One hash per call
For every RPC call the desk hashes the method, parameters, response, error and time with SHA 256.
One hash per run
The run receipt hashes the tool, your question, the time, the shown answer and every call hash together.
Verify at any time
Verify receipt recomputes all hashes. If anyone edits the JSON, even one digit, the hashes stop matching.
What it proves
A receipt proves the log was not changed after it was sealed. It does not prove the RPC node told the truth; for that, compare with a second RPC or an explorer.
How to use the desk
Ask or pick
Write a question in your language, use an example, or switch to Pick a tool and paste an address or a transaction hash.
Read the answer
Each run shows plain facts with explorer links, plus a note when something stands out, such as an empty address.
Check the evidence
Open Evidence to see each RPC call, its timing and its hash, then press Verify receipt.
Use a wallet
Connect your wallet, approve the switch to Monad testnet, get MON from the faucet and send a small test transfer. The transfer gets its own receipt.
Export
Download all receipts as JSON for an agent or a bug report, or the log as Markdown for notes.
Limits
- Monad testnet only. Mainnet is not supported on purpose.
- The public testnet RPC has rate limits. When it refuses, wait a moment and run again.
- Monad reset testnet from genesis on Dec 16 2025, so older hashes and balances are gone.
- Questions are routed by keywords and by spotting addresses and hashes. It is not a language model, so it may pick a briefing when it does not understand.
- Testnet MON has no value.
Questions
Does the site hold any keys?
No. There are no API keys and no signing keys on the server. The server only relays read requests to the public Monad testnet RPC; transfers go from your wallet straight to the network.
What if my wallet is on another network?
The desk asks the wallet to switch to chain 10143 and to add Monad testnet if it is missing. If the wallet stays on another network, sending is blocked.
Which wallets work?
Any browser wallet that supports EIP 6963, such as MetaMask, Phantom or Rabby. They appear automatically when installed.
Can an AI agent use this?
Yes. The JSON export is designed for agents: each run has the tool, input, facts and the raw calls with hashes.