# Services from coins.zhidun.ai on Zero

> coins.zhidun.ai serves 3 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/coins.zhidun.ai
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/coins.zhidun.ai/health.json

## Services

- [Coins Agent Check — ERC-20 Allowance Snapshot](https://www.zero.xyz/c/coins-agent-check-erc-20-allowance-snapshot-6b4454aa/llms.txt): $0.02/call via x402. Returns a signed snapshot of ERC-20 token allowances for a given owner address across one or more spender addresses on Base or BSC
- [Coins Agent Check — Base USDC Receipt Verification](https://www.zero.xyz/c/coins-agent-check-base-usdc-receipt-verification-fec3be5b/llms.txt): $0.02/call via x402. Verifies a Base chain (chainId 8453) USDC transfer by transaction hash, confirming recipient, payer, and minimum received amount, returning a signed receipt report.
- [Coins Agent Check — BSC Transaction Reconciliation](https://www.zero.xyz/c/coins-agent-check-bsc-transaction-reconciliation-10cf9932/llms.txt): $0.02/call via x402. Reconciles a BNB Smart Chain transaction against expected ERC-20 token receipts and validates minimum net received amounts

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)