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Wallet / Token / Contract Risk Snapshot (Base, Polygon)
x402
Wallet / Token / Contract Risk Snapshot (Base, Polygon) is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-29).
Returns a machine-readable risk score and signal breakdown for a wallet, token, or contract address on Base or Polygon — suitable for pre-trade due diligence.
Price / call$0.25
Success—
StatusUnknown
How this service works
x402 pay-per-call endpoints. Free: /health, /.well-known/x402, /receipts, /prove/keys, /prove/stats.
Output
A JSON object with: overall risk score (numeric), a verdict string (e.g. 'low_risk'), an array of named signals each with severity level (clear/info/warn/critical) and human-readable evidence, the subject's identified kind (wallet, token_contract, etc.), chain and address, a list of data sources queried, a tamper-evident evidence_hash, a payment receipt with tx_hash and receipt_id, and metadata like request_id and generated_at timestamp.
Example use cases
Pre-trade token safety check
“I'm about to buy a new DeFi token on Base — can you check if the contract 0xABCd1234567890abcdef1234567890abcdef1234 is safe to interact with and give me the risk score?”
OFAC sanctions screening for a counterparty
“Someone just sent me a payment request from 0x9f8e7d6c5b4a3210fedcba9876543210fedcba98 on Polygon — can you screen that wallet for OFAC sanctions and tell me if it's flagged?”
Liquidity risk check before providing liquidity
“I'm thinking of adding liquidity to a pool on Base that uses token 0x1111222233334444555566667777888899990000 — can you pull the risk snapshot and check if the liquidity is dangerously concentrated among top holders?”
Technical details
Endpoint
POSThttps://twin.unykorn.org/risk?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a structured, machine-readable, multi-signal risk assessment for a single EVM address on Base or Polygon — especially for pre-trade compliance checks, OFAC screening, or liquidity concentration analysis. It is purpose-built for agentic DeFi workflows where a JSON verdict with severity-tagged signals and an auditable evidence hash are required. Prefer it over generic blockchain explorers when you need a consolidated risk verdict rather than raw chain data.
Side effects
- Invalid address format (not a valid 0x-prefixed 40-hex-character address) — likely returns a 400 or validation error
- Unsupported chain value (not 'base' or 'polygon') — enum validation error
- Payment failure via x402 protocol — no result returned
- Upstream data source (e.g. Blockscout) unavailable — partial signals or degraded result
- Address not found on-chain — result may still return with limited signals
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| params | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"type": "risk",
"score": 0,
"receipt": {
"tx_hash": "0x<64hex>",
"amount_usd": 0.25,
"receipt_id": "g402-<16hex>"
},
"signals": [
{
"name": "screen:ofac_sdn_treasury",
"evidence": "Not present on the OFAC SDN list (1046 digital-currency entries screened).",
"severity": "clear"
},
{
"name": "token:liquidity_concentration",
"evidence": "Top 10 holders control 41.2% of supply.",
"severity": "info"
}
],
"sources": [
{
"ok": true,
"url": "https://base.blockscout.com/api/v2/addresses/0x…",
"name": "blockscout_address"
}
],
"subject": {
"kind": "token_contract",
"chain": "base",
"address": "0x4ed4…efed",
"network": "eip155:8453"
},
"verdict": "low_risk",
"request_id": "risk_<16hex>",
"generated_at": "<iso8601>",
"evidence_hash": "sha256:<64hex>"
}
}Tags
x402
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