# Services from oceanalt.com on Zero

> oceanalt.com serves 4 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/oceanalt.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/oceanalt.com/health.json

## Services

- [OceanAlt Pre-Payment Decision API](https://www.zero.xyz/c/oceanalt-pre-payment-decision-api-3cf98488/llms.txt): $0.002/call via x402. Evaluates whether an AI agent should allow, review, or decline a proposed payment to a given address, returning a verifiable risk decision with evidence signals.
- [OceanAlt TRON Address Transaction Trace](https://www.zero.xyz/c/oceanalt-tron-address-transaction-trace-3dcc0ac5/llms.txt): $0.01/call via x402. Traces a TRON address up to 3 hops upstream to detect whether its transaction path touches any listed (sanctioned or high-risk) address
- [OceanAlt Batch Address Screening](https://www.zero.xyz/c/oceanalt-batch-address-screening-86df3108/llms.txt): $0.01/call via x402. Screens up to 25 blockchain addresses (EVM or TRON) in a single call, returning risk scores, verdicts, and a summary for each address.
- [OceanAlt Prepaid Decision Credits](https://www.zero.xyz/c/oceanalt-prepaid-decision-credits-27d611d8/llms.txt): $0.1/call via x402. Purchase a prepaid bundle of 100 decision-review credits for the OceanAlt /api/x402/decision endpoint, valid for 365 days, returning a single-use credit token.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)