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FastX402 ERC-20 Token Info Lookup
x402
FastX402 ERC-20 Token Info Lookup is a paid API for AI agents from fastx402.tools, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-30).
Fetches on-chain metadata for an ERC-20 token contract (name, symbol, decimals, total supply) on Base or Ethereum.
Price / call$0.002
Success—
StatusUnknown
How this service works
200 pay-per-call tools for AI agents, from $0.001 per request in USDC on Base or Solana with x402. No account, no API key.
Output
A JSON object containing the token's name, symbol, number of decimals, human-readable total supply, raw total supply integer string, and the chain it was queried on. Example: {"name":"USD Coin","chain":"base","token":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","symbol":"USDC","decimals":6,"total_supply":"4403879551.831094","total_supply_raw":"4403879551831094"}.
Example use cases
Identify unknown token contract
“I found this contract address 0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48 on Ethereum — can you tell me what token it is, its symbol, and how many decimals it uses?”
Verify token supply before DeFi interaction
“Before I interact with this DeFi protocol, can you check the total supply of the token at 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 on Base so I know how large the float is?”
Enrich token data for portfolio tracker
“I'm building a list of tokens in my wallet — can you fetch the name, symbol, and decimals for the token contract 0x4200000000000000000000000000000000000006 on Base so I can display it properly?”
Technical details
Endpoint
GEThttps://fastx402.tools/erc20-info?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need on-chain ERC-20 token metadata (name, symbol, decimals, total supply) for a known contract address on Base or Ethereum, especially in a no-account, no-API-key, pay-per-call context via x402. Prefer this over general blockchain explorers when you need structured JSON output for agent pipelines, or when you want micropayment-based access without registration overhead.
Side effects
- Invalid or non-existent contract address returns an error or empty response
- Contract address exists but is not an ERC-20 token (e.g. NFT or EOA) may return unexpected data or error
- Unsupported chain value (anything other than 'base' or 'ethereum') results in a validation error
- Network or RPC congestion may cause slow or failed lookups
- Payment failure via x402 protocol blocks the request before execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "USD Coin",
"chain": "base",
"token": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"symbol": "USDC",
"decimals": 6,
"total_supply": "4403879551.831094",
"total_supply_raw": "4403879551831094"
}
}Tags
x402
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