Arsha AML

Watched addresses

Transfers

Address Transaction hash

Unknown addresses are queued and resolved within seconds.

Errors only

This key is shown only once. Store it somewhere safe.

Authentication

All /v1 endpoints require a key, except /v1/health. Create one in the API keys tab.

x-api-key: ok_xxxxxxxxxxxx

Base URL:

Responses are asynchronous

An address already on record returns 200. A new one returns 202, goes into the queue, and should be polled again a few seconds later. Labeling takes several seconds per address and is rate limited, so a synchronous response is not possible.

Statuses

labeled	The address is known and attributed
unlabeled	Resolved cleanly but no label exists — unknown address
pending	Queued, not resolved yet
failed	Could not resolve — we do not know. This is not the same as unlabeled and must never be read as clearing the address.

Notes

Every response carries checked_at. Labels change over time; what matters for audit is when the assessment was made.
The Sanction tag is an attribution from our data provider, not an official OFAC listing. Verify independently before acting on it legally.
Exchange User means the address is attributed to a customer of that exchange — an attribution, not a certainty.
Default rate limit is 120 requests per minute per key. Exceeding it returns 429 with a retry-after header.
Transaction lookup supports bsc and tron only.