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Base ERC-20 Token Risk Verdict
x402
Base ERC-20 Token Risk Verdict is a paid API for AI agents from kr-x402-mvp.kgy5612.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-31).
Returns a deterministic on-chain risk verdict (OK|CAUTION|AVOID), should_buy/can_sell flags, risk score 0-100, and specific risk flags for any Base ERC-20 token address
Price / call$0.01
Success—
StatusUnknown
How this service works
Should your agent buy this Base token? Half the price of $0.02 AI token-verdict quests, deterministic on-chain checks instead of an LLM opinion. One-call verdict OK|CAUTION|AVOID + should_buy + can_sell + plain-English reasons, backed by risk_score 0-100 + level, flags (honeypot, cannot_sell_all, high tax, mintable, hidden owner, proxy, blacklist, unverified), bytecode size, EIP-1967 proxy impl, owner(), buy/sell tax, honeypot simulation, top10 holder pct, holders. address=0x... (Base ERC-20).
Output
A JSON object with: verdict (OK|CAUTION|AVOID), should_buy (boolean), can_sell (boolean), risk_score (0-100 integer), risk_level (low/medium/high), plain-English reasons array, flags array (e.g. honeypot, cannot_sell_all, high_tax, mintable, hidden_owner, proxy, blacklist, unverified), trading details (buy_tax, sell_tax, honeypot_sim.is_honeypot, top10_holder_pct), token metadata (symbol, decimals, holder_count), and contract info (bytecode_bytes, verified_source, EIP-1967 proxy impl, owner address).
Example use cases
Pre-trade honeypot check for DeFi bot
“My trading bot is about to buy the Base token at 0x532f3EFf8Dc9f1B01Dc2b1B2B98f2E4F6B1234AB — can you first check if it's a honeypot or has a sell tax above 5%, and give me a verdict on whether it's safe to buy?”
Wallet drainer screening for airdrop token
“I just received an unknown token airdrop on Base at contract address 0xabc123...def456 — can you check if it's flagged as a honeypot, if the contract is unverified, or if there are any hidden owner or blacklist risks before I try to sell it?”
Portfolio token safety audit
“I'm reviewing my Base wallet holdings and want to know if the token 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is safe — please give me its risk score, whether I can sell it, the top 10 holder concentration, and any contract flags like mintable or proxy.”
Technical details
Endpoint
GEThttps://kr-x402-mvp.kgy5612.workers.dev/crypto/token-risk?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs a single deterministic on-chain safety verdict before executing a token swap or trade on Base — especially when you want to avoid LLM-opinion-based token analysis and instead rely on bytecode-level checks, honeypot simulation, tax measurement, and holder concentration data. It is cheaper than comparable AI-verdict services ($0.01 vs $0.02) and covers all major rug pull vectors in one call. Prefer it over generic blockchain explorers when you need a machine-readable buy/sell decision with structured risk flags rather than raw contract data.
Side effects
- Invalid or non-ERC-20 address returns error (address must match ^0x[0-9a-fA-F]{40}$)
- Non-Base chain addresses may return incorrect or empty results since only Base ERC-20 tokens are supported
- Honeypot simulation may fail for tokens with unusual transfer mechanics
- Unverified contracts may have limited flag coverage
- Payment failure (402) if USDC balance on Base is insufficient
- Rate limiting or worker timeout for very large contracts with high bytecode size
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "base",
"flags": [
"upgradeable_proxy"
],
"token": {
"symbol": "USDC",
"decimals": 6,
"holder_count": 11391096
},
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"reasons": [
"upgradeable proxy (logic can change)"
],
"trading": {
"buy_tax": 0,
"sell_tax": 0,
"honeypot_sim": {
"is_honeypot": false
},
"top10_holder_pct": 26.49
},
"verdict": "OK",
"can_sell": true,
"contract": {
"is_contract": true,
"bytecode_bytes": 1852,
"verified_source": true
},
"risk_level": "low",
"risk_score": 5,
"should_buy": true
}
}Tags
x402
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