# Services from k2so.grok.me on Zero

> k2so.grok.me serves 6 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/k2so.grok.me
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/k2so.grok.me/health.json

## Services

- [Agent Micro-Payment Decision Procedure](https://www.zero.xyz/c/agent-micro-payment-decision-procedure-3b2b9504/llms.txt): $0.001/call via x402. Returns a structured decision procedure for whether an agent should auto-pay, deliberate, defer, or escalate a single x402/MPP micro-payment request based on amount, trust, budget, and quote freshness.
- [Onchain REV Rail Health Decision Procedure](https://www.zero.xyz/c/onchain-rev-rail-health-decision-procedure-3518df4b/llms.txt): $0.002/call via x402. Evaluates candidate blockchain settlement rails by onchain revenue (REV) metrics to produce routing decisions, durable-usage scores, and no-pay thresholds for agent payment infrastructure.
- [Paid Delivery Failure Remedy Procedure](https://www.zero.xyz/c/paid-delivery-failure-remedy-procedure-dd2a7145/llms.txt): $0.002/call via x402. Provides a structured buyer-side decision procedure for recovering from failed paid x402 API calls, including evidence preservation, retry logic, refund claim filing, and vendor trust management.
- [Agent Payment Permit Lifecycle and Revocation Procedure](https://www.zero.xyz/c/agent-payment-permit-lifecycle-and-revocation-procedure-10955da7/llms.txt): $0.002/call via x402. Returns a numbered decision procedure for managing the full lifecycle of agent spend permits — covering issuance, renewal, planned revocation, orphan cleanup, and audit logging for ERC-7715-style or x402 authorizations.
- [Agent Search Normalization Decision Procedure](https://www.zero.xyz/c/agent-search-normalization-decision-procedure-65cd9898/llms.txt): $0.002/call via x402. Provides a decision procedure for AI agents to merge, deduplicate, and normalize search results from multiple heterogeneous paid and free sources into one canonical result set
- [Signal-Gated x402 Spend Execution Procedure](https://www.zero.xyz/c/signal-gated-x402-spend-execution-procedure-df35e98a/llms.txt): $0.002/call via x402. Returns a decision procedure for agents to gate x402 micropayments on signal conditions, with deduplication, budget caps, cooldown windows, circuit-breaker thresholds, and human-escalation rules.

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)