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Grizzly Token Check — ERC-20 Contract Info on Base
x402
Grizzly Token Check — ERC-20 Contract Info on Base is a paid API for AI agents from grizzly-x402.onrender.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-30).
Looks up metadata and risk flags for an ERC-20 token contract address on the Base blockchain
Price / call$0.003
Success—
StatusUnknown
How this service works
Pay-per-call data tools for agents, paid in USDC on Base via x402.
Output
Returns a JSON object with the token's name, symbol, decimals, total supply, chain identifier, contract code size, owner info, proxy info, a list of risk flags (e.g. 'upgradeable_proxy'), whether the address is a contract, and an informational disclaimer.
Example use cases
Pre-trade token safety check
“Before I swap into this token, can you look up the contract 0xAbCd1234... on Base and tell me if there are any risk flags or if it's an upgradeable proxy I should be worried about?”
Identify unknown token received
“I just received some tokens at contract address 0x4200000000000000000000000000000000000006 on Base — can you find out what token this is, its symbol, and how many decimals it uses?”
DeFi due diligence on new project
“I'm considering adding liquidity to a new Base protocol — can you pull the contract info for 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 including total supply, owner details, and any proxy or risk flags?”
Technical details
Endpoint
GEThttps://grizzly-x402.onrender.com/token/check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need quick on-chain ERC-20 token metadata and basic risk flags for a Base network contract address, especially in DeFi agent workflows where you want to validate a token before a trade or liquidity action. Prefer this over generic block explorers when you need structured, agent-consumable JSON with risk flags and proxy detection included at a low per-call cost.
Side effects
- Invalid or non-contract address returns isContract: false with empty metadata
- Address not deployed on Base returns empty or error response
- Rate limiting or payment failure via x402 results in 402 Payment Required
- Network timeouts on Render free-tier hosting may cause slow or failed responses
- Newly deployed contracts may have incomplete metadata
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "USD Coin",
"chain": "base",
"owner": {},
"proxy": {},
"symbol": "USDC",
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"codeSize": 1000,
"decimals": 6,
"functions": {},
"disclaimer": "Informational only",
"isContract": true,
"risk_flags": [
"upgradeable_proxy"
],
"totalSupply": "1000000"
}
}Tags
x402
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