# Services from nova-retail-controlled-proof.onrender.com on Zero

> nova-retail-controlled-proof.onrender.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/nova-retail-controlled-proof.onrender.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/nova-retail-controlled-proof.onrender.com/health.json

## Services

- [Sharpe Nova OS – Decision Context Packet](https://www.zero.xyz/c/sharpe-nova-os-decision-context-packet-7a485e86/llms.txt): $1/call via x402. Returns a structured pre-execution decision-context packet for an agent-prepared capital action, capturing state, boundary effects, and integrity digests without approving or executing the action.
- [Sharpe Nova OS Governed Review Context](https://www.zero.xyz/c/sharpe-nova-os-governed-review-context-9857a511/llms.txt): $0.1/call via x402. Returns pre-execution decision context for agent-prepared capital actions, structuring review state before a local authority decides and an external system executes.
- [Nova Retail Context Delta](https://www.zero.xyz/c/nova-retail-context-delta-dffe75a1/llms.txt): $0.02/call via x402. Submits a context delta update for a retail session, capturing incremental state changes in a retail context resource
- [Nova Retail State Ping](https://www.zero.xyz/c/nova-retail-state-ping-e787323a/llms.txt): $0.002/call via x402. Sends a context state-ping to the Nova Retail service to check or update retail session/context state

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)