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Agent Guard – On-Chain Wallet Heuristic Flags
x402
Agent Guard – On-Chain Wallet Heuristic Flags is a paid API for AI agents from agent-guard.annushka1190.workers.dev, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-13).
Analyzes an EVM or Solana wallet address on-chain and returns heuristic risk flags, transaction count, contract status, and a risk score.
Price / call$0.015
Success—
StatusUnknown
How this service works
Safety and trust layer for AI agents: PII redaction, scam/phishing text scan, EVM/Solana address validation, IBAN checks, JSON repair, deep on-chain wallet risk scoring, x402 counterparty endpoint reputation checks. Free discovery: /openapi.json, /.well-known/x402, /v1/capabilities, /mcp (tools/list). REST + MCP. Pay with USDC via x402 — no API keys.
Output
Returns a JSON object with the queried wallet address, the network it was checked on, a numeric risk score, a boolean indicating whether it is a smart contract, a transaction count, and an array of heuristic risk flags (e.g. drain patterns, airdrop scams, seed phrase exposure indicators). An empty flags array and risk score of 0 indicates a clean wallet.
Example use cases
Pre-payment wallet screening
“I'm about to pay a contractor 500 USDC to their wallet 0xABC123...on Ethereum — can you check if it has any risk flags or looks like a contract address before I send it?”
DeFi counterparty due diligence
“We're integrating a new liquidity provider whose wallet is 0x9F8b...on Base. Can you pull heuristic flags and the risk score so I can decide whether to whitelist them?”
Fraud detection in agent pipeline
“A user just submitted wallet 0xDeadBeef...on Solana for a withdrawal — run it through on-chain heuristics and block the transaction if the risk score is above zero or there are any suspicious flags.”
Technical details
Endpoint
POSThttps://agent-guard.annushka1190.workers.dev/v1/wallet/heuristic-flagsWhen to prefer
Choose this endpoint when you need on-chain heuristic analysis of a specific EVM or Solana wallet address — including risk scoring, contract detection, and transaction count — before authorizing a payment or interaction. It is especially valuable in agentic pipelines where wallets from unknown counterparties must be screened automatically. Prefer it over generic blockchain explorers when you need a machine-readable risk score and flag list rather than raw transaction data.
Side effects
- Invalid or malformed wallet address returns an error response
- Unsupported network type causes request failure
- On-chain data unavailable for very new or unfunded wallets may return sparse results
- Payment failure via x402 if USDC balance is insufficient blocks the call
- Rate limiting or worker timeout on high-traffic periods
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true
}
}Tags
x402
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