# Services from goldkey-edge-storefront.noah-ing.workers.dev on Zero

> goldkey-edge-storefront.noah-ing.workers.dev 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/goldkey-edge-storefront.noah-ing.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/goldkey-edge-storefront.noah-ing.workers.dev/health.json

## Services

- [GoldKey Guard EVM Transaction Authorization](https://www.zero.xyz/c/goldkey-guard-evm-transaction-authorization-27d71dba/llms.txt): $0.1/call via x402. Authorizes or blocks an EVM blockchain transaction against operator-signed policy and returns a cryptographically signed receipt required before execution proceeds.
- [GoldKey Action Gate — AI Agent Preflight Authorization](https://www.zero.xyz/c/goldkey-action-gate-ai-agent-preflight-authorization-33ffe90d/llms.txt): $0.01/call via x402. Performs a deterministic preflight security check on proposed AI agent actions (tool calls, payments, fetches, writes, executions), returning ALLOW, REVIEW, or BLOCK with reason codes and reproducible SHA-256 hashes before any action is executed.
- [GoldKey Guard — Network Authorization Endpoint](https://www.zero.xyz/c/goldkey-guard-network-authorization-endpoint-dc829961/llms.txt): $0.05/call via x402. Issues cryptographically signed authorization receipts for AI agent tool calls (MCP tools or HTTPS operations) before they are executed, enforcing operator-signed policy and returning an ALLOW/REVIEW/BLOCK decision.
- [GoldKey Guard Execution-Path Authorization](https://www.zero.xyz/c/goldkey-guard-execution-path-authorization-8af30c92/llms.txt): $0.01/call via x402. Pre-authorizes an AI agent tool call (MCP, HTTPS, or EVM) against a signed operator policy and returns a signed receipt required before the call can execute

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)