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LimitGuard Agent Wallet Check
x402
LimitGuard Agent Wallet Check is a paid API for AI agents from api.limitguard.ai, paid per call via x402, $0.75/call, status unknown (last checked 2026-10-11).
Screens an EVM wallet in a single call: OFAC sanctions check, Base chain USDC/ETH balance, ERC-8004 identity lookup, and on-chain feedback listing, returning one unified verdict.
Price / call$0.75
Success—
StatusUnknown
How this service works
Agent wallet check in one call: screens an EVM wallet against the OFAC SDN digital-currency address list, reads its Base USDC and ETH balance, looks up its ERC-8004 identity registration (and, given an agent id, that agent's owner and payment wallet) and lists open ERC-8004 feedback, which is not scored. Returns one verdict and each part's status; a part that could not be read says so.
Output
A JSON object with a top-level verdict (e.g. 'no_findings' or a flag), plus per-module status objects for: sanctions (hit/miss, programs, list date), balance (USDC and ETH on Base), identity (ERC-8004 registration, owner, agent wallet, agent IDs), reputation (open on-chain feedback per agent ID), wallet risk (risk level, risk score, rules fired), and optionally domain info. Each module reports its own status and reason if it could not be read.
Example use cases
Pre-payment agent wallet screening
“Before I send 50 USDC to that AI agent, check wallet 0x7e4c2a91d05b3f68a1c9e2d4b7f05a3c6e81d290 for sanctions hits and confirm its Base USDC balance and ERC-8004 identity — agent ID is 2045.”
Onboarding a new agent to my fleet
“I want to onboard a new agent to my pipeline. Can you verify wallet 0xAbC123...def456 against OFAC's SDN list, confirm it's registered on-chain as ERC-8004 agent 312, and show me any open feedback on it?”
Auditing a suspicious payment recipient
“Flag check: run a full compliance and identity screen on this wallet — 0x3f9a1b2c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a — I want to know if it's sanctioned, its ETH and USDC balance on Base, and whether it has any ERC-8004 registration at all.”
Technical details
Endpoint
POSThttps://api.limitguard.ai/v1/agent/check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a single, unified compliance-plus-identity check for an EVM wallet before initiating a payment or inter-agent transaction on Base. It is the right choice when you need OFAC screening, live Base chain USDC/ETH balance, and ERC-8004 identity verification all in one call rather than assembling those checks yourself. Prefer it over building bespoke pipelines when operating in the AI agent economy where counterparties may be registered on ERC-8004 and you need a fast, auditable go/no-go verdict.
Side effects
- Invalid wallet address format returns a validation error
- Wallet not registered on ERC-8004 registry returns identity.status='not_found'
- Base RPC unavailable causes balance module to report status='error' with a reason
- OFAC list fetch failure causes sanctions module to report status='error'
- No agent_id provided means identity lookup is partial (wallet-level only)
- Rate limiting or payment failure (x402) results in a 402 or 429 HTTP error
- Unrecognized agent_id returns wallet_controls_agent=false
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | Optional website domain the agent gives for itself; reported, never read by the verdict |
| wallet | string | EVM wallet address (0x + 40 hex characters), read on Base |
| agent_id | string | Optional ERC-8004 agentId (decimal) the wallet claims |
Output
Schema · Response
{
"type": "json",
"example": {
"ran": [
"sanctions",
"balance",
"identity",
"reputation",
"wallet_risk"
],
"domain": {
"domain": null,
"has_mx": null,
"probes": null,
"reason": null,
"status": "not_requested",
"has_spf": null,
"has_dmarc": null,
"ssl_valid": null,
"web_score": null,
"ssl_issuer": null,
"domain_age_days": null,
"domain_expires_at": null
},
"wallet": "0x7e4c2a91d05b3f68a1c9e2d4b7f05a3c6e81d290",
"balance": {
"reason": null,
"status": "ok",
"chain_id": "eip155:8453",
"balance_usdc": 412.5,
"balance_native": 0.0031
},
"verdict": "no_findings",
"chain_id": "eip155:8453",
"identity": {
"reason": null,
"status": "ok",
"agent_id": "1187",
"registry": "erc8004",
"agent_owner": "0x7e4c2a91d05b3f68a1c9e2d4b7f05a3c6e81d290",
"agent_wallet": "0x7e4c2a91d05b3f68a1c9e2d4b7f05a3c6e81d290",
"agent_registered": true,
"wallet_agent_ids": [
"1187"
],
"wallet_controls_agent": true
},
"sanctions": {
"hit": false,
"lists": [],
"reason": null,
"status": "ok",
"programs": [],
"list_as_of": "09/30/2026",
"list_status": "ok"
},
"checked_at": "2026-10-01T10:00:00Z",
"reputation": {
"note": "open on-chain feedback, not used in the score",
"agents": [
{
"agent_id": "1187",
"top_tags": [
{
"avg": 4.67,
"tag": "starred",
"count": 3
}
],
"clients_capped": false,
"feedback_count": 3,
"distinct_clients": 2
}
],
"reason": null,
"status": "ok"
},
"did_not_run": [],
"wallet_risk": {
"reason": null,
"status": "ok",
"risk_level": "low",
"risk_score": 10,
"rules_fired": []
},
"schema_version": "agent-check-v1",
"verdict_reasons": []
}
}Tags
x402
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