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WalCert Portfolio Quality Grader
x402
WalCert Portfolio Quality Grader is a paid API for AI agents from walcert.globalscoreagent.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).
Grades an EVM wallet's portfolio quality (usable vs spam/dust, concentration, tiers) on an A-F scale and returns a signed certificate
Price / call$0.05
Success—
StatusUnknown
How this service works
Grade wallet portfolio quality (usable vs spam/dust, concentration, tiers) A-F. POST wallet_address; signed certificate. $0.05 USDC.
Output
A signed certificate containing an A-F portfolio quality grade, spam/dust ratio assessment, token concentration (HHI-like) metrics, portfolio tier classification, and a cryptographically signed attestation of the wallet's portfolio quality at time of evaluation.
Example use cases
Vetting counterparty before OTC deal
“Before I send funds to this wallet 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, can you grade its portfolio quality and tell me if it's a legitimate holder or mostly spam and dust?”
DeFi protocol onboarding filter
“I need to check if the wallet 0x3f5CE5FBFe3E9af3971dD833D26bA9b5C936f0bE has a solid portfolio — can you run a portfolio quality grade on it and give me the tier and concentration score?”
Agent wallet credentialing
“Can you generate a signed portfolio quality certificate for the wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 so I can verify it holds real assets before letting it interact with our platform?”
Technical details
Endpoint
POSThttps://walcert.globalscoreagent.com/v1/certificates/portfolioWhen to prefer
Use this endpoint when you need a holistic view of a wallet's portfolio quality — specifically whether its holdings are legitimate, concentrated, or filled with spam/dust tokens — and want a signed, verifiable certificate. Prefer this over activity or chain-footprint graders when the question is about asset quality and token composition rather than transaction behavior or cross-chain longevity. Ideal before accepting a wallet as a counterparty, onboarding a user, or credentialing an agent wallet.
Side effects
- Invalid or malformed wallet address (not 0x-prefixed or not 42 chars) returns validation error
- Wallet address not found or has no on-chain activity may result in low-grade or insufficient data error
- Payment failure or insufficient USDC balance (requires $0.05 USDC via x402) results in 402 error
- Network or RPC timeout when fetching on-chain portfolio data
- Very new wallets with minimal holdings may produce low-confidence grades
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| wallet_address | string | EVM wallet address (0x-prefixed, 42 chars) |
Tags
x402
Reviews
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