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Token Risk Preflight / Token Safety Check
x402
Token Risk Preflight / Token Safety Check is a paid API for AI agents from scanpay-edge.alextaghiashvili.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-11-01).
Returns a deterministic on-chain risk score and safety flags for a Base or Ethereum ERC-20 token, covering contract shape, proxy detection, ownership, liquidity, and mint/blacklist heuristics.
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call x402 APIs for AI agents: OpenAI-compatible LLM chat, perp funding and arbitrage spreads, crypto prices, gas, FX, Solana SPL mint audit, token price by contract, x402 delivery-receipt verification, web search, clean page extraction, batch tools and deterministic code-security scanning. USDC on Base or Solana, no signup, no API key, from $0.0001 a call.
Output
Returns a JSON object including: a numeric risk_score (0–100) and risk_band label, ERC-20 token name/symbol/decimals/total_supply, owner address, is_proxy flag and EIP-1967 implementation slot value, bytecode_size, an array of named check results (each with ok boolean and detail string), detected flags for dangerous selectors (mint, blacklist, etc.), Uniswap V2/V3 liquidity observations, and a disclaimer note reminding the caller this is heuristic on-chain analysis only.
Example use cases
Pre-swap DeFi token vetting
“Before I swap any ETH for this new token at 0xAbCd1234... on Ethereum mainnet, can you run a risk preflight on it and tell me the risk score, whether it's a proxy contract, and if there are any mint or blacklist red flags?”
Rug pull detection for a Base memecoin
“I saw this Base token 0x4200000000000000000000000000000000000006 being promoted on Telegram — can you check its on-chain risk score, whether the owner address has been renounced, and if there's any real Uniswap liquidity backing it?”
Automated token screening in a trading bot
“Screen the token at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base for me: I need the full preflight — risk band, ERC-20 metadata, proxy status, and any dangerous selector heuristics — so I can decide whether to include it in my watchlist.”
Technical details
Endpoint
GEThttps://scanpay-edge.alextaghiashvili.workers.dev/api/v1/token-preflight?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, deterministic, on-chain-only risk assessment of an ERC-20 token before a swap, investment, or listing decision — especially on Base or Ethereum. It is ideal for automated agent pipelines that need a structured risk score and flag set without relying on off-chain data providers or third-party audit services. Prefer it over full audit services when speed and cost matter and when on-chain heuristics (proxy detection, ownership, liquidity, dangerous selectors) are sufficient signal.
Side effects
- Address is an EOA (not a contract) — check returns is_contract: false with no further analysis
- Invalid or malformed contract address returns a 4xx error
- Unsupported network or chain ID returns an error
- Contract bytecode is too large or unusual to decode — partial results with missing fields reported explicitly
- Uniswap pool data unavailable — liquidity fields reported as missing rather than safe
- Payment not included or insufficient — 402 Payment Required response per x402 protocol
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "This is a heuristic preflight. Missing data is reported as missing, not as safe.",
"flags": [],
"owner": "0x0000000000000000000000000000000000000000",
"token": {
"name": "USD Coin",
"symbol": "USDC",
"decimals": 6,
"total_supply": 1000000,
"total_supply_raw": 1000000000000
},
"checks": [
{
"ok": true,
"check": "is_contract",
"detail": "1852 bytes of bytecode"
},
{
"ok": true,
"check": "proxy",
"detail": "no EIP-1967 implementation slot"
}
],
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"network": "base",
"product": "scanpay.token_preflight",
"chain_id": "eip155:8453",
"is_proxy": false,
"price_usd": 0.005,
"risk_band": "high",
"disclaimer": "On-chain observations only: not an audit, not a safety guarantee, no off-chain holder or trade analysis. Re-check before acting.",
"risk_score": 85,
"bytecode_size": 1852,
"implementation": null
}
}Tags
x402
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