# Services from walcert.globalscoreagent.com on Zero

> walcert.globalscoreagent.com 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/walcert.globalscoreagent.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/walcert.globalscoreagent.com/health.json

## Services

- [WalCert Activity Certificate — 15-Day Wallet Behavior Grader](https://www.zero.xyz/c/walcert-activity-certificate-15-day-wallet-behavior-grader-90247e3d/llms.txt): $0.05/call via x402. Grades a wallet's 15-day on-chain activity (counterparties, concentration, velocity, bot-like behavior) on an A–F scale and returns a signed certificate for $0.05 USDC.
- [WalCert Multichain Wallet Certificate](https://www.zero.xyz/c/walcert-multichain-wallet-certificate-06ccfaa7/llms.txt): $0.05/call via x402. Grades an EVM wallet's cross-chain footprint and on-chain longevity across multiple EVM networks, returning a signed A-F certificate.
- [WalCert Wallet Funding Origins Grader](https://www.zero.xyz/c/walcert-wallet-funding-origins-grader-3d826a1d/llms.txt): $0.05/call via x402. Grades an EVM wallet's funding origins (CEX, bridge, mixer, organic) on an A-F scale and returns a signed certificate anchored on Celo.
- [WalCert Portfolio Quality Grader](https://www.zero.xyz/c/walcert-portfolio-quality-grader-bdf9a254/llms.txt): $0.05/call via x402. Grades an EVM wallet's portfolio quality (usable vs spam/dust, concentration, tiers) on an A-F scale and returns a signed certificate

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)