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Ethereum Token Verdict Preview
x402
Ethereum Token Verdict Preview is a paid API for AI agents from api.arysphere.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-24).
Fetches raw on-chain contract facts for an Ethereum ERC-20 token address — code size, name, symbol, decimals, total supply, owner, and proxy slots — without scoring or analysis.
Price / call$0.002
Success—
StatusUnknown
How this service works
Token Quick Check: Ethereum mainnet contract facts -- name, supply, owner, code. Not financial advice. Returns: a token verdict preview on one token contract: the contract facts the full verdict reads -- code size, name, symbol, decimals, total supply, owner(), proxy slots -- read from the chain. No grade, no model, no pool price, no holders, no safety or legitimacy call.
Output
Returns a JSON object with the token's on-chain contract facts: name, symbol, decimals, total supply (raw and formatted), owner address, owner_renounced flag, code size in bytes, is_contract and erc20_shaped booleans, proxy slot values checked (eip1967, eip1967_beacon), proxy_implementation address if found, and upgradeable_proxy flag. No safety grade, no price, no holder data, no model-generated verdict — purely chain-read state.
Example use cases
Token contract sanity check before trading
“Before I buy any of this token, can you check the on-chain contract facts for 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 on Ethereum mainnet — I want to see the name, symbol, owner, total supply, and whether it's an upgradeable proxy?”
Detecting proxy or upgradeable contracts
“Can you fetch the raw chain data for the Ethereum token contract at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 and tell me if it's a proxy contract and which proxy slots were found?”
Verifying ownership renouncement of an ERC-20
“I need to know if the owner of the Ethereum ERC-20 contract at 0x6B175474E89094C44Da98b954EedeAC495271d0F has renounced ownership — can you pull the contract facts directly from the chain?”
Technical details
Endpoint
GEThttps://api.arysphere.com/v1/ventures/x402_eth_token_verdict_v1/eth_mainnet_token_verdict_preview?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need cheap, fast, raw on-chain contract facts for an Ethereum mainnet ERC-20 token without needing a safety grade, price data, holder counts, or AI-generated verdict. Ideal as a lightweight first-pass check before calling more expensive analysis endpoints, or when you specifically need proxy slot inspection, ownership status, or basic ERC-20 shape validation straight from the chain.
Side effects
- Invalid or non-checksummed contract address returns a 400 or validation error
- Address is an EOA (externally owned account), not a contract — is_contract returns false
- Token contract does not implement standard ERC-20 interface — erc20_shaped may return false
- Network connectivity or RPC node issues may cause timeouts
- Calling with a non-Ethereum address format (e.g. Base or other chain address) may return unexpected results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"note": "A preview: the contract's own state read from the chain. No grade, no model, no pool price, no holders, no safety or legitimacy call. Not financial advice.",
"chain": "ethereum",
"cached": false,
"method": "preview",
"result": {
"facts": {
"name": "Tether USD",
"owner": "0xc6cde7c39eb2f0f0095f41570af89efc2c1ea828",
"symbol": "USDT",
"address": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
"decimals": 6,
"code_bytes": 11075,
"proxy_slot": null,
"is_contract": true,
"erc20_shaped": true,
"total_supply": "88301265725.970534",
"owner_function": true,
"owner_renounced": false,
"total_supply_raw": "88301265725970534",
"upgradeable_proxy": false,
"proxy_slots_checked": [
"eip1967",
"eip1967_beacon"
],
"proxy_implementation": null
},
"token": "0xdAC17F958D2ee523a2206206994597C13D831ec7"
},
"service": "x402_eth_token_verdict_v1.eth_mainnet_token_verdict_preview"
}
}Tags
x402
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