Observe what mattersContract monitoring on Robinhood Chain
Obsero watches the contracts and wallets you name, decodes what they emit and tells you when your rule is met. Smart contract monitoring, onchain signals and developer intelligence in one tab.
In three steps
Name it. Watch it. Act on it.
Name the address
Paste any contract or wallet on Robinhood Chain. A token, a lending market, a vault, your own treasury: if it has an address, it can be watched.
Read what it emits
Obsero pulls its event logs in safe block windows and decodes transfers, approvals, ownership moves, upgrades and pauses. Unknown events stay visible as raw topics.
Get told when it matters
Set rules such as a transfer above an amount or a new owner. They are checked against every new block while your tab is open, with an optional browser notification.
Live chain data
Every block is on the record
These numbers come straight from Robinhood Chain while you read this page. Nothing is estimated, nothing is a sample: when the chain cannot be reached the card shows a dash.
—
Latest block
eth_getBlockByNumber · refreshed every few seconds
0
User transactions in the last 16 blocks
Full blocks, sequencer system txs left out
—
Gas price, gwei
eth_gasPrice from the chain's own RPC
—
Average block time
Measured over the last 3,000 blocks
0
Contracts created
In the same 16 blocks
—
ETH / USD
Chainlink price feed on Robinhood Chain
Waiting for the next block
The stream fills in a few seconds
Waiting for the next block
The stream fills in a few seconds
Waiting for the next block
The stream fills in a few seconds
See it land, then set the rule.
The stream shows each user transaction as its block arrives. Pick one and its target opens in the monitor.
Open the live streamStart from a preset
Ready-made watch rules
USDG large transfers
USDG stablecoin (6 decimals)
Target
0x5fc536…F1d168
1 of 8 rules · Transfer of 100,000 tokens or more
WETH wraps and unwraps
Wrapped ETH
Target
0x0Bd7D3…AcAD73
2 of 8 rules · Event Deposit
SGOV transfers over 10,000
SGOV token on Robinhood Chain
Target
0x92FD66…86F9B5
2 of 8 rules · Transfer of 10,000 tokens or more
GLD token admin changes
GLD token on Robinhood Chain
Target
0xC9a981…eBFC4e
4 of 8 rules · Event OwnershipTransferred
Lending market activity
Morpho Blue lending core
Target
0x9D53d5…651010
1 of 8 rules · Any event from the contract
USDG approvals
USDG stablecoin (6 decimals)
Target
0x5fc536…F1d168
1 of 8 rules · Event Approval
Shareable rules
Small rules, public record
A watch is an address and up to eight rules. Keep it in your browser, or publish it as a preset on the ObseroWatchBoard contract so a teammate can import the exact same watch. The rule bytes ride in the publish event; the contract keeps their hash, so an imported copy can be checked against the chain.
- Rules per watch
- 8
- Largest rule document
- 2,048 B
- Admin keys on the board
- 0
- To publish one preset
- ~240k gas
Rules per watch
Largest rule document
Admin keys on the board
To publish one preset
Base fee of the newest blocks, read live. Publishing a preset costs gas at this price (about 240k gas; deploying the board once costs about 919k).
The network
Watching Robinhood Chain
Settles to Ethereum
Robinhood Chain runs on Arbitrum technology and settles on Ethereum. Blocks arrive every fraction of a second, so a monitor has to read in windows and keep up, which is what Obsero is built around.
Logs are public
Every event a contract emits is in the chain's logs for anyone to read. Obsero does not need special access, an indexer contract or a key: it asks the public RPC the same questions you could.
ETH pays the gas
Reading is free. The only things that cost gas are optional: publishing a watch preset or retiring one, paid in ETH from your own wallet.
What is Obsero?
Obsero is a monitoring tool for Robinhood Chain. You point it at a smart contract or a wallet and it shows what is happening there: decoded events, new transactions, balance and nonce changes, and alerts when something you care about shows up.
It reads public chain data only. It never needs your keys, and you can use every read feature without connecting a wallet.
How does Obsero work?
The site reads the chain through Robinhood Chain's public RPC endpoints. The contract monitor asks for an address's event logs in capped block windows, decodes the common ones (Transfer, Approval, OwnershipTransferred, proxy upgrades, pauses) and keeps everything else as raw topics. The live stream reads the newest blocks with their transactions every few seconds.
Alerts are rules you set (a transfer above an amount, an event name, an address involved, a balance crossing a line, gas above a level). They are checked in your open browser tab against that live data.
Do alerts reach me when the tab is closed?
No, not in this build. Rules run in the open tab, and a browser notification appears only if you allowed notifications with a click. Email and webhook delivery that keep working while you are away are planned, and the site labels them as planned.
What is a watch preset?
A watch preset is a target address plus a small rule document, published on chain with the ObseroWatchBoard contract. Anyone can import it into their own monitor. The rules travel in the publish event and only their hash is stored, so an imported copy can be checked against the chain.
Which network is Obsero on?
Robinhood Chain (chain id 4663), a layer 2 built on Arbitrum technology, with Ethereum as its settlement layer. Gas is paid in ETH. The $OBSERO token and the ObseroWatchBoard contract live on the same chain.
How do I buy $OBSERO?
$OBSERO has not launched yet. The contract address will be published on the token page and in the navbar; until then any address someone sends you is not ours.
What is $OBSERO for?
The plan is to use $OBSERO for developer API credits, extra alert capacity and monitoring plans. None of that exists yet: it is a plan, not a promise of value, income or rewards.
What are the risks?
Monitoring shows you what happened; it does not stop anything from happening. A missed alert, a slow RPC or a decoder that does not know an event can all hide something. Event names are matched by their signature hash, so a contract can emit a familiar-looking event that means something else. Treat what you see as information and check important things on the explorer. $OBSERO, like any token, can lose its value.
About
About Obsero
Obsero is a software project building a monitoring desk for Robinhood Chain: a place where developers, traders and people who run projects can see what their contracts and wallets are doing, in plain terms, as it happens. Today the monitor, stream, watchlist and in-tab alerts work in the browser. A developer API and alerts that run while you are away are planned.
- Official account
- @obsero
- Website
- obsero.space
