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ERC-20 Total Supply Lookup
x402
ERC-20 Total Supply Lookup is a paid API for AI agents from ari001.tailb4ac3a.ts.net, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-02).
Returns the total supply of an ERC-20 token contract by calling totalSupply() on-chain for Ethereum mainnet
Price / call$0.003
Success—
StatusUnknown
How this service works
Returns the total supply of an ERC-20 token. Provide token (ERC-20 contract address). Query: token (ERC-20 contract, 0x + 40 hex).
Output
Returns a JSON object with ok (boolean), result (the totalSupply as a uint256 decimal string), chain (e.g. 'ethereum'), method (the RPC method used), and service name. On failure, ok is false and an error string is present.
Example use cases
DeFi token supply audit
“Can you check the total supply of the Uniswap token at 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 on Ethereum so I can compare it against the reported circulating supply?”
Stablecoin issuance monitoring
“What's the current total supply of USDT on Ethereum — the contract address is 0xdAC17F958D2ee523a2206206994597C13D831ec7?”
Token analytics dashboard enrichment
“I need the on-chain totalSupply for the WETH contract 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 so I can display it alongside price data in my dashboard.”
Technical details
Endpoint
GEThttps://ari001.tailb4ac3a.ts.net/v1/ventures/ethereum_contract_abi_service/erc20_total_supply?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the raw on-chain totalSupply of any ERC-20 token on Ethereum mainnet. It is a direct eth_call to the contract, so the data is authoritative and real-time. Prefer this over off-chain aggregators (CoinGecko, CoinMarketCap) when you need the exact on-chain figure rather than a reported or circulating supply approximation.
Side effects
- Invalid or non-ERC-20 contract address returns ok:false with an error message
- Contract does not implement totalSupply() causes a revert or empty response
- Malformed address (not matching 0x + 40 hex) rejected by schema validation
- Network or RPC node unavailability causes timeout or error response
- Token contract that has been self-destructed returns zero or error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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