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Base Token Verdict Preview
x402
Base 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 2026-10-29).
Fetches on-chain contract facts (name, symbol, decimals, supply, owner, code size, proxy slots) for a Base ERC-20 token address — no AI grade or safety verdict included.
Price / call$0.002
Success—
StatusUnknown
How this service works
Token Quick Check: Base 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 raw on-chain contract facts for the specified Base ERC-20 address: code size (bytecode length), token name, symbol, decimals, total supply, owner() return value, and proxy storage slot values. No AI-generated grade, no safety assessment, no liquidity or holder data — purely chain-read metadata.
Example use cases
Pre-investment token contract check
“Before I buy this token, can you fetch the basic on-chain facts for the Base contract 0x4200000000000000000000000000000000000006 — name, symbol, decimals, total supply, and who the owner is?”
Proxy contract detection for security review
“I'm auditing this Base token contract at 0x2Ae3F1Ec7F1F5012CFEab0185bfc7aa3cf0DEc22 — can you check the contract facts including code size and proxy slot data so I can see if it's a proxy?”
Token metadata lookup for app integration
“I need the token symbol, decimals, and total supply for the ERC-20 at 0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA on Base so I can display it correctly in my app.”
Technical details
Endpoint
GEThttps://api.arysphere.com/v1/ventures/x402_bazaar_token_verdict_v2/base_erc20_supply_facts_preview?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need raw on-chain contract facts for a Base ERC-20 token quickly and cheaply ($0.002/call) without paying for a full AI verdict. Ideal as a lightweight pre-check before committing to a full token risk report, or when you only need metadata (name, supply, owner, decimals, proxy slots) for display, integration, or triage purposes. Not suitable when you need a safety grade, liquidity analysis, holder distribution, or any AI-generated assessment.
Side effects
- Invalid contract address format (not 0x + 40 hex) returns a validation error
- Address is an EOA (externally owned account), not a contract — code size zero, other fields may be absent
- Contract does not implement standard ERC-20 methods — fields like name or symbol may be null or fail to decode
- Base RPC node unavailable or rate-limited — service may return a timeout or 5xx error
- Contract is a non-standard proxy where slots are not readable — proxy data may be empty or misleading
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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