# PART 2: Existing subsystems to reuse instead of building be… (1)

Checks 1 to 4 of 5, each with its evidence

## What you can do here

- **Verify 1: Marble (backend and frontend) | Rule-based…**: Verify: Marble (backend and frontend) | Rule-based transaction monitoring, AM…
- **Verify 2: Jube | Real-time AML and fraud monitoring w…**: Verify: Jube | Real-time AML and fraud monitoring with ML, rules, sanctions a…
- **Verify 3: Tazama | Open-source real-time transaction…**: Verify: Tazama | Open-source real-time transaction monitoring built on ISO 20…
- **Verify 4: Moov Watchman | Sanctions screening engine.…**: Verify: Moov Watchman | Sanctions screening engine. Downloads OFAC, EU, UK an…
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