How to Integrate a Sanctions Screening API

Integrating a sanctions screening API into your payment pipeline is straightforward — and the fastest way to close the compliance gap for AI agents and automated payments. This guide covers REST, MCP, Python, and CLI integration patterns.

Step 1: Choose your integration mode

• REST API: Simple GET request — screen any wallet, name, or country. Works with any language. Start with the free tier (5 checks/day, no key).
• MCP server: For AI agents — call sanctions_check as a tool from any MCP-compatible framework.
• CLI: For scripts and CI/CD pipelines — agentmail check --wallet 0x...

Step 2: Wire into your payment path

Add the screening call immediately before payment authorization. If the result is clean, proceed. If not, block and alert. This is a single function call — do not over-engineer it.

Step 3: Test with known sanctioned wallets

Use Tornado Cash addresses to confirm blocking works. If your screening returns clean for a known sanctioned wallet, your integration has a bug.