Nominis is a blockchain intelligence provider that combines on-chain analytics with off-chain threat intelligence — including darknet marketplaces, hacker forums, and social media monitoring — to detect illicit crypto activity in real time.

With the Nominis integration, you can:

• Screen deposit and withdrawal wallet addresses using deep screening to assess the risk of the counterparty wallet.
• Screen crypto transactions to identify suspicious sources and destinations of funds.
• Get a risk score (low, medium, high, critical) together with risk categories such as sanctioned, mixer, stolen funds, darknet mention, and more.

How Nominis works

Nominis is available as a BYOK (Bring Your Own Key) integration: you hold a direct contract with Nominis and supply your API key on the Sumsub Marketplace page. Once the integration is enabled, Sumsub screens wallets and transactions through your Nominis account and applies the results in your transaction monitoring rules.

Nominis supports 90+ blockchain networks. If a transaction involves an asset that Nominis does not support, the screening result is marked as unsupported, and you can configure a dedicated rule to route such transactions.

Get started with Nominis

The following is a sequence of steps to be taken to enable Nominis crypto monitoring.

Step 1: Get access

You will need the following prerequisites to get started:

• An active contract with Nominis and an API key.
• Access to the Crypto Monitoring feature. To enable it, contact your Customer Success Manager at [email protected].

To connect Nominis:

1. Copy the API key from your Nominis account.
2. In the Sumsub Dashboard, navigate to the Marketplace page, and find the Nominis solution.
3. Click Settings, paste your API key, and save the changes. Sumsub validates the key automatically.

Step 2: Install rules

Once you have Nominis enabled for your account, you can install the pre-configured rule bundles from the Sumsub Dashboard:

1. Navigate to the Rules Library.
2. Install and activate the Nominis rule bundle. For more instructions on how to manage rules, see this article.
3. Optionally, create custom rules based on Nominis data points, such as the risk score and risk categories.

Review results

Once configured, screening results are displayed in the Dashboard:

1. On the Transactions page, open the transaction of interest.
2. The wallet address analysis and transfer analysis sections show the risk score, risk categories, and screening mode.

Via API, structured results are available on the transaction object under cryptoTxnInfo.nominisMonitorData. Use this API method with the transaction identifier to retrieve this object and ingest the Nominis screening results into your own compliance system.

Request example:

curl -X GET \
     'https://api.sumsub.com/resources/kyt/txns/69f0721264ade593a3b99000/one' \
     -H 'X-App-Token: <your-app-token>' \
     -H 'X-App-Access-Sig: <your-signature>' \
     -H 'X-App-Access-Ts: <unix-timestamp>'