Back to Browse
Foundry Base Token Info
x402
Foundry Base Token Info is a paid API for AI agents from minty-sprout.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-01).
Looks up ERC-20 token metadata on Base mainnet (name, symbol, decimals, total supply, contract status) from a given token address.
Price / call$0.001
Success—
StatusUnknown
How this service works
ERC-20 token info on Base mainnet from the chain: name, symbol, decimals, total supply, and whether the address is a contract at all. Input: 0x token address. Deterministic, no LLM, cheapest token lookup.
Output
Returns a JSON object with: token name, symbol, decimals, total supply (as a float), the address itself, the network identifier (eip155:8453), a boolean indicating whether it is an ERC-20, and a boolean indicating whether the address is a contract at all. If the address is not a contract, relevant fields will reflect that.
Example use cases
DeFi portfolio token identification
“I have this Base token address 0x532f27101965dd16442E59d40670FaF5eBB142E4 and I need to know its name, symbol, and how many decimals it uses so I can display it correctly in my portfolio tracker.”
Verify contract before trading
“Before I swap into this token, can you check whether 0x4200000000000000000000000000000000000006 on Base is actually a real ERC-20 contract and tell me its total supply?”
On-chain data enrichment for token list
“I'm building a token list and need the full metadata — name, symbol, decimals, and total supply — for the Base mainnet address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. Can you fetch that from the chain?”
Technical details
Endpoint
POSThttps://minty-sprout.onrender.com/v1/base-token-info?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, deterministic, on-chain ERC-20 metadata for Base mainnet tokens without any LLM overhead or price oracle complexity. It is the cheapest and most direct way to resolve a token address to its name, symbol, decimals, and supply on Base. Prefer it over generalist blockchain APIs when you specifically need Base mainnet data and want a simple, low-cost per-call model.
Side effects
- Invalid or malformed 0x address returns an error
- Address exists but is an EOA (not a contract) — is_contract will be false, erc20 will be false
- Address is a contract but not ERC-20 compliant — erc20 may be false
- Base mainnet RPC unavailable causing lookup failure
- Network timeout if Render cold-start is triggered
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | ERC-20 token contract address on Base, 0x + 40 hex characters |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "Brett",
"erc20": true,
"symbol": "BRETT",
"address": "0x532f27101965dd16442E59d40670FaF5eBB142E4",
"network": "eip155:8453",
"decimals": 18,
"is_contract": true,
"total_supply": 9999997544.34
}
}Tags
x402
Reviews
No reviews yet. Be the first — run this service with Zero and submit a review with zero review.
How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"