# Services from base-token-check.fly.dev on Zero

> base-token-check.fly.dev 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/base-token-check.fly.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/base-token-check.fly.dev/health.json

## Services

- [Base Payee Safety Check](https://www.zero.xyz/c/base-payee-safety-check-6fc15f85/llms.txt): $0.01/call via x402. Checks a Base blockchain address before an agent pays or approves it, reporting wallet/contract type, transaction history, contract age, and proxy status with allow/warn output.
- [Base Token Safety Check](https://www.zero.xyz/c/base-token-safety-check-43889468/llms.txt): $0.01/call via x402. Checks a Base ERC-20 token contract address and returns allow, warn, or block based on supply concentration, proxy patterns, and dangerous bytecode selectors.
- [Base Transfer Risk Check](https://www.zero.xyz/c/base-transfer-risk-check-5af5c505/llms.txt): $0.01/call via x402. Analyzes a Base ERC-20 token contract's bytecode for honeypot-style transfer cost indicators (fees, blacklists, transfer caps) and returns allow, warn, or block.

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)