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Ysaere Prohibited-Source Quick Screen (Wallet)
x402
Ysaere Prohibited-Source Quick Screen (Wallet) is a paid API for AI agents from api.ysaere.com, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-20).
Screens a wallet address against FAR §889, NDAA §1260H, BIS MEUL, NS-CMIC, and Entity List prohibited-source regulations for $0.25 USDC, returning deterministic JSON evidence of screens run.
Price / call$0.25
Success—
StatusUnknown
How this service works
Ysaere Prohibited-Source Quick Screen (wallet) — $0.25 USDC for FAR §889, NDAA §1260H, BIS MEUL, NS-CMIC and Entity List screens. JSON only, deterministic, no LLM. Evidence of screens run, not an eligibility determination. The account name for this same screen is Prohibited-Source Screen (5 credits).
Output
Returns a JSON object with: a list of flags (any hits found), checks (which lists were screened), overall status, evidence array documenting screens run, a disclaimer, honest_gaps (limitations or data gaps), screened_at timestamp, and checks_unavailable (any lists that could not be queried). This is evidence of screens performed, not a legal eligibility determination.
Example use cases
Pre-payment wallet compliance check
“Before we send that 5 ETH payment to 0xAbCd1234...7890, can you run a prohibited-source screen on that wallet to make sure it's not flagged under FAR 889 or the BIS Entity List?”
Procurement counterparty due diligence
“We're onboarding a new vendor who gave us their wallet 0xFeed5678...CAFE — can you screen it against NDAA 1260H and NS-CMIC so we have evidence of due diligence on file?”
DeFi protocol participation check
“I want to confirm wallet 0xDead...Beef isn't on any prohibited-source lists — FAR 889, BIS MEUL, or the Entity List — before we let it interact with our protocol's smart contracts.”
Technical details
Endpoint
POSThttps://api.ysaere.com/v1/intel/prohibited-source-screen?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need deterministic, auditable compliance evidence that a wallet has been screened against U.S. federal prohibited-source regulations (FAR §889, NDAA §1260H, BIS MEUL, NS-CMIC, Entity List) before transacting. It is purpose-built for wallet-level screening at low cost ($0.25 USDC), uses no LLM inference so results are reproducible, and returns structured evidence suitable for compliance recordkeeping. Prefer this over the account-based 'Prohibited-Source Screen' (5 credits) when paying per-call via wallet/x402. Use Ysaere KYB Screen instead for entity/company-level GLEIF, EDGAR, OFAC, and SAM.gov checks.
Side effects
- Invalid or malformed wallet address returns an error
- Payment failure (insufficient USDC) results in 402 response before screen runs
- Certain lists may be unavailable at time of screen, reflected in checks_unavailable field
- No result for unknown or brand-new wallet addresses (not an error, just no flags)
- Network timeout if upstream list providers are slow
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| name | string | Legal entity name to screen (3-200 chars) |
| jurisdiction | string | Optional ISO 3166-1 alpha-2 country hint |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"flags": [],
"checks": [],
"status": "…",
"evidence": [],
"disclaimer": "…",
"honest_gaps": [],
"screened_at": "…",
"checks_unavailable": []
},
"success": true
}
}Tags
x402
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