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/check is the human side of Kyro. Type a wallet or Kyro username, pick what you are about to do and read the verdict, the advisory USDC limit and the evidence behind it. If you need a record, one click gives you a receipt link.

was for developers who want to call the API.

When someone asks you to send USDC to a wallet you have never dealt with, you usually have a block explorer and a hunch.


You enter a wallet address or a Kyro username.

Usernames end in .kyro, so if a counterparty shares theirs you can type that instead of copying an address.

You pick the use case: payment, escrow, lending or marketplace.

The use case matters because the recommendation is tuned to what is at stake.

You get one of three verdicts: allow, caution or block.

Allow means the available evidence supports proceeding for that use case.

Caution means something is thin, stale or short of the bar for that use case.

Block means Kyro recommends not proceeding based on the available evidence.

Under the verdict you see the identity score, the recommended USDC limit for that use case and the reasons behind the call.

Separate tabs show what the verdict is built on, what Kyro could and could not see and how fresh the data is, with the model version.


If Kyro has never indexed the wallet, the page says so and treats the first verdict as a baseline.


You can start indexing from the same screen and the first index takes about a minute.

If you need a record, one click creates a 

A receipt is a point-in-time snapshot of the verdict, the reasons and the model versions.

Anyone with the link can open it without logging in.

Receipts never update, so the receipt page itself tells you to run a fresh check before relying on it.


There is also a batch tab for up to ten wallets or usernames at once, with one use case for the whole list.


The difference from the API is the audience, not the answer.

The verdict is the same one developers get from the decision endpoint.

/check is for humans. The API is for apps and builders who want to ask the same question automatically.

The design decision I keep coming back to is that Kyro is advisory and non-custodial.

It does not move funds, approve transfers or guarantee safety.

It puts the evidence in front of you and the decision stays yours.

The limit is a recommendation, not a rule.

If you would rather browse than search, the directory lists registered identities with their reputation records and opens after you connect a wallet.

Would you ask a counterparty for their Kyro username before a first payment or would you rather check their wallet address?

When a check says caution, what would you want to see on the page to decide between paying a smaller amount and paying nothing?

Important: Kyro runs on Arc testnet today. It is an independent community project not affiliated with Circle or the Arc team.

Kyro build log #8: instant trust checks for humans

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