# Services from api.pennyforge.org on Zero

> api.pennyforge.org serves 2 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/api.pennyforge.org
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.pennyforge.org/health.json

## Services

- [SendCheck Crypto Address Verifier](https://www.zero.xyz/c/sendcheck-crypto-address-verifier-a97ec54c/llms.txt): $0.01/call via x402. Verifies an EVM wallet address before sending crypto: checks EIP-55 checksum, network activity, EOA vs contract status, native/USDC/USDT balances, and flags token confusion traps
- [SendCheck Deep Crypto Address Verifier](https://www.zero.xyz/c/sendcheck-deep-crypto-address-verifier-69cff103/llms.txt): $0.05/call via x402. Verifies an EVM wallet address before sending crypto by checking EIP-55 checksum, network activity, contract vs EOA status, and native/USDC/USDT balances across multiple chains

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)