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Base Token Verdict
x402
Base Token Verdict is a paid API for AI agents from api.arysphere.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-31).
Returns a risk-graded report (RADIOACTIVE/COOKED/MID/BASED) for a Base chain ERC-20 token contract, including proxy/owner facts and Uniswap V3 market depth.
Price / call$0.01
Success—
StatusUnknown
How this service works
Base ERC-20 verdict: AI grade and on-chain facts for one token contract. Not financial advice. Returns: a rule-graded token verdict on one token contract: grade (BASED/MID/COOKED/RADIOACTIVE, a stated rule over the contract's own state), a one-liner and a roast, and the facts read: code size, name, symbol, decimals, supply, owner(), proxy slots; plus the deepest Uniswap V3 pool's USD price and depth. No holders, no safety or legitimacy call.
Output
A JSON object containing: ok status, chain (base), risk grade (RADIOACTIVE/COOKED/MID/BASED), a roast one-liner, contract facts (name, symbol, decimals, owner address, owner_renounced flag, proxy slot type, upgradeable_proxy flag, erc20_shaped, is_contract), and market data (Uniswap V3 price in USD, pool depth classification, deepest pool details including fee tier and reserve sizes in USD, ETH/USD from Chainlink). Cached flag indicates whether result was freshly fetched.
Example use cases
Rug-check before buying a new token
“Before I buy any of this new token on Base at 0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed, can you run a verdict on it and tell me if it's BASED, MID, COOKED, or RADIOACTIVE, and whether anyone holds an admin key?”
DeFi bot pre-trade safety gate
“My trading bot is about to swap into a Base token at 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb — can you quickly check the Arysphere verdict to make sure it's not a proxy rug and that there's deep liquidity on Uniswap V3?”
Research report on a suspicious airdrop token
“Someone airdropped me a Base token at 0x2Ae3F1Ec7F1F5012CFEab0185bfc7aa3cf0DEc22 that I've never heard of — can you pull the token verdict showing its grade, owner situation, and market depth so I can decide whether to sell it immediately?”
Technical details
Endpoint
GEThttps://api.arysphere.com/v1/ventures/x402_q_verdict_v1/base_token_verdict_v3?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, payable-per-call risk verdict on a Base chain ERC-20 token without any account or subscription setup. It is ideal for DeFi agents, trading bots, or wallet UIs that need to gate trades behind a quick safety check. Prefer it over generic block explorers when you want a structured grade (BASED/MID/COOKED/RADIOACTIVE) plus proxy/owner analysis and live Uniswap V3 depth in a single call. Choose the Ethereum mainnet sibling endpoint instead for non-Base tokens.
Side effects
- Invalid or malformed contract address (not 0x + 40 hex) returns a validation error
- Address is an EOA (not a contract) — grade returned as RADIOACTIVE with is_contract: false
- No Uniswap V3 pool found for the token — market section omitted or depth returned as none_or_dust
- Payment of $0.01 USDC not received or x402 handshake fails — 402 Payment Required response
- Token exists but has no ERC-20 methods — grade returned as RADIOACTIVE with erc20_shaped: false
- RPC timeout or Base node unreachable — 500 or upstream error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"chain": "base",
"grade": "COOKED",
"cached": false,
"method": "verdict",
"result": {
"facts": {
"name": "USD Coin",
"owner": "0x3abd6f64a422225e61e435bae41db12096106df7",
"symbol": "USDC",
"decimals": 6,
"proxy_slot": "zeppelinos",
"is_contract": true,
"erc20_shaped": true,
"owner_renounced": false,
"upgradeable_proxy": true
},
"grade": "COOKED",
"roast": "USDC: COOKED. Proxy (zeppelinos slot set); a live owner holds the keys.",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"market": {
"dex": "uniswap_v3",
"eth_usd": 2432.8015,
"fee_tiers": [
500,
3000,
10000
],
"price_usd": 1.00209,
"rpc_calls": 2,
"depth_rule": "pool_depth from the deepest pool's quote-side reserve in USD: <$1k none_or_dust, <$100k thin, <$5M moderate, else deep. A description of on-chain state, not advice.",
"pool_depth": "deep",
"pools_found": 3,
"deepest_pool": {
"fee": 3000,
"pool": "0x6c561b446416e1a00e8e93e221854d6ea4171372",
"quote": "WETH",
"price_usd": 1.00209,
"token_reserve": 58770808.350535,
"quote_reserve_usd": 87721037.3
},
"quote_assets": [
"WETH",
"USDC"
],
"eth_usd_source": "chainlink ETH/USD 0x71041dddad3595f9ced3dccfbe3d1f4b0a16bb70",
"quote_reserve_usd": 87721037.3
},
"one_liner": "USDC is COOKED",
"disclaimer": "Entertainment, not financial advice. Reads the contract and its deepest Uniswap V3 pool (spot price, quote-side depth): not holders, locks or future price.",
"grade_rule": "RADIOACTIVE: not a contract, or not ERC-20 shaped (no decimals/totalSupply). COOKED: a proxy implementation slot is set (EIP-1967, its beacon, or ZeppelinOS) AND owner() names a live owner. MID: either one. BASED: neither found.",
"written_by": "template"
},
"service": "x402_bazaar_token_verdict_v2.base_token_verdict_v3",
"disclaimer": "Entertainment, not financial advice. Reads the contract and its deepest Uniswap V3 pool (spot price, quote-side depth): not holders, locks or future price."
}
}Tags
x402
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