Arkham API Adds Risk Score and AI Agent Payment

Arkham has added risk scores, AI agent payments, and Robinhood chain support to its blockchain analysis API. On February 17, 2026, it expanded its features by launching a new API that connects entity labels and fund flow data with external products. The risk management feature was added on June 23, and the risk score evaluates the on-chain illicit activity correlation of an address or entity on a scale from 0 to 100. This score is offered as a paid add-on to the API subscription. On July 22, Robinhood chain data was integrated into the API, enabling large fund movement alerts and major trader tracking. On August 5, the x402 standard developed by Coinbase was applied to the API, allowing AI agents to pay fees in USD Coin at the time of request. Arkham stated that through the x402 feature, it can track the movements of major token holders and fund flows in real-time. Arkham's official API page supports 16 chains, identifies 94% of on-chain value, and has labeled 3.1 billion addresses. No direct correlation has been confirmed between this feature addition and the price of Arkham tokens.

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