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Strale Web3 Pre-Transaction Gate
x402
Strale Web3 Pre-Transaction Gate is a paid API for AI agents from api.strale.io, paid per call via x402, $0.162/call, status unknown (last checked 2026-09-15).
Performs compliance screening and sanctions checks on a wallet address before a Web3 transaction, returning structured validation results with audit trail.
Price / call$0.162
Success—
StatusUnknown
How this service works
Should your agent execute this transaction? Single-call go/no-go middleware for DeFi agents. Checks wallet risk, token safety, approval security, current gas costs, and sanctions status. Returns a risk verdict.
Output
Returns a structured JSON object with compliance status, sanctions screening result, audit trail entries, and any flagged risk indicators for the given wallet address and optional entity name or contract.
Example use cases
Example prompt
“Before I send tokens to wallet 0xAbC123...def on Ethereum mainnet (chain ID 1), run a pre-transaction compliance and sanctions check on it — the entity is called 'Acme Trading Ltd'.”
Technical details
Endpoint
POSThttps://api.strale.io/x402/solutions/web3-pre-tx-gateWhen to prefer
Use this endpoint when an AI agent needs to perform a compliance or sanctions check on a counterparty wallet address before executing a Web3 transaction, especially when an audit trail is required. Prefer this over generic blockchain explorers when regulatory compliance, AML screening, or pre-transaction gating is the primary concern.
Side effects
- Invalid or malformed wallet address returns validation error
- Unsupported chain ID returns error indicating chain not supported
- Sanctions data provider unavailable causes timeout or 503
- Missing required wallet_address field returns 400 bad request
- Ambiguous entity name may produce inconclusive screening result
Input
{
"chain_id": "1",
"entity_name": "Test Trading Entity",
"wallet_address": "0x742d35Cc6634C0532925a3b844Bc9e7595f42bE5",
"contract_address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain_id | string | Chain ID, default 1 |
| entity_name | string | Entity name for sanctions check |
| wallet_address | string | Counterparty or target wallet address |
| contract_address | string | Token contract if relevant |
Output
{
"_meta": {
"payment": {
"method": "x402",
"price_usd": 0.162,
"settlement_id": "0xa2b311001966de07b3e7ac8cf91ac0a67d72029a27cbca877866e237f9f39a91"
},
"solution": "web3-pre-tx-gate",
"latency_ms": 1802,
"step_count": 5
},
"steps": {
"gas-price-check": {
"chain_id": "1",
"base_fee_gwei": 0.124234782,
"fast_gas_gwei": 0.125630529,
"safe_gas_gwei": 0.124234782,
"gas_used_ratio": "0.4000976,0.58948955,0.502878816666667,0.487619726917326,0.349896982402133",
"proposed_gas_gwei": 0.124537003
},
"sanctions-check": {
"query": "Test Trading Entity",
"schema": "Person",
"source": "dilisense",
"matches": [],
"queried_at": "2026-06-12T04:35:43.520Z",
"match_count": 0,
"is_sanctioned": false,
"lists_queried": {
"version": null,
"collection": "dilisense/consolidated-sanctions",
"major_lists": [
"UN Security Council — Consolidated List",
"UN Security Council — ISIL (Da'esh) & Al-Qaida Sanctions List",
"UN Security Council — 1718 Designated Vessels List",
"European Commission — Consolidated List of Financial Sanctions",
"European Commission — Consolidated List of Travel Bans",
"European Council — Decisions (CFSP)",
"European Council — Regulations",
"World Bank — Debarred Firms and Individuals",
"African Development Bank — Debarred Entities",
"Asian Development Bank — Sanction List",
"Inter-American Development Bank — Sanctioned Firms and Individuals",
"EBRD — Sanctions",
"OFAC — Specially Designated Nationals (SDN)",
"OFAC — Non-SDN Sanction List",
"BIS — Entity List",
"BIS — Denied Persons List",
"BIS — Military End User (MEU) List",
"DOS — Foreign Terrorist Organizations",
"DOS — Nonproliferation Sanctions",
"DDTC — AECA Debarred List",
"DOD — Section 1260H Chinese Military Companies",
"DHS — UFLPA Entity List",
"HMT OFSI — Financial Sanctions",
"HMT OFSI — Ukraine Restrictive Measures",
"UK Government — Sanctions List",
"Home Office — Proscribed Terrorist Groups",
"SECO — Switzerland Sanctions",
"Norwegian MFA — Sanctions and Restrictive Measures",
"Bundesministerium des Innern — Verbotene Organisationen (DE)",
"France Trésor — Registre des Gels",
"Belgium FPS Finance — Consolidated List",
"Estonian Government — Sanctions",
"Latvia FIS — Sankciju subjekti",
"Czech MFA — National Sanctions List",
"Australia DFAT — Consolidated List",
"Japan MOF — Asset Freeze List",
"Singapore MAS — Targeted Financial Sanctions"
],
"source_count": 134,
"freshness_note": "Dilisense aggregates 130+ sanctions, debarment, and restrictive-measure lists into a consolidated index. The publisher refreshes the consolidated index multiple times daily; per-list timestamps are not exposed via the screening API.",
"last_updated_at": null,
"source_catalog_url": "https://dilisense.com/en/sources/sanction-sources"
},
"total_results": 0,
"country_filter": null,
"birth_date_filter": null
},
"wallet-risk-score": {
"address": "0x742d35Cc6634C0532925a3b844Bc9e7595f42bE5",
"details": {
"fake_kyc": false,
"cybercrime": false,
"blacklist_doubt": false,
"financial_crime": false,
"stealing_attack": false,
"money_laundering": false,
"phishing_activities": false,
"blackmail_activities": false,
"darkweb_transactions": false,
"honeypot_related_address": false,
"malicious_mining_activities": false
},
"chain_id": "1",
"risk_level": "low",
"risk_labels": [],
"is_malicious": false
},
"token-security-check": {
"buy_tax": "0",
"chain_id": "1",
"is_proxy": true,
"sell_tax": "0",
"is_in_dex": true,
"risk_level": "low",
"token_name": "USD Coin",
"is_honeypot": false,
"is_mintable": false,
"hidden_owner": false,
"holder_count": 7464431,
"token_symbol": "USDC",
"total_supply": "51510449201.324665",
"is_anti_whale": false,
"owner_address": null,
"is_blacklisted": false,
"is_open_source": true,
"creator_address": "0x95ba4cf87d6723ad9c0db21737d862be80e93911",
"contract_address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"can_take_back_ownership": false
},
"approval-security-check": {
"address": "0x742d35Cc6634C0532925a3b844Bc9e7595f42bE5",
"chain_id": "1",
"approvals": [],
"risk_level": "none",
"risky_approvals": 0,
"total_approvals": 0
}
},
"solution": "web3-pre-tx-gate"
}Tags
x402
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