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Financial Data x402 — ERC-20 Token Total Supply
x402
Financial Data x402 — ERC-20 Token Total Supply is a paid API for AI agents from x402financialdata.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Returns the raw total supply of an ERC-20 token on Ethereum (or other supported chains) given its contract address, paid per-call via x402/USDC with no API key required.
Price / call$0.005
Success—
StatusUnknown
How this service works
Pay-per-call stock, macro, on-chain, and crypto data over the x402 protocol. USDC on Base or Solana, no API keys, no subscriptions.
Output
A JSON object containing: the blockchain chain identifier (e.g. 'eth'), the token_contract address queried, the raw_total_supply as an integer string in the token's smallest unit (e.g. wei for 18-decimal tokens), and a note reminding callers to divide by 10^decimals for a human-readable amount (decimals not included in the response).
Example use cases
DeFi dashboard token supply check
“Pull the current total supply for the USDC contract 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum so I can display it in my analytics dashboard.”
Stablecoin depeg monitoring alert
“Fetch the raw total supply for the DAI contract 0x6B175474E89094C44Da98b954EedeAC495271d0F on Ethereum — I want to track whether it's growing or shrinking week over week.”
Token launch supply verification
“Verify the total supply of our newly deployed token at contract address 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 on Ethereum to confirm it matches our whitepaper.”
Technical details
Endpoint
GEThttps://x402financialdata.com/token-supply/%7Bcontract_address%7DWhen to prefer
Choose this endpoint when you need raw on-chain total supply for an ERC-20 token and want zero-friction, no-subscription access paid per-call in USDC via the x402 protocol. It is ideal for agents that make sporadic, ad-hoc queries where a monthly API subscription would be wasteful. It is not appropriate if you also need the token's decimal precision (you must fetch that separately), or if you need off-chain circulating supply figures that exclude locked/burned tokens.
Side effects
- Invalid or non-existent contract address returns an error or empty supply
- Contract address on unsupported chain returns an error
- Payment failure or insufficient USDC balance causes x402 payment rejection
- Malformed contract address (wrong length/checksum) may cause a 400 or lookup failure
- No decimals field returned — caller must independently know the token's decimals to normalize the value
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "raw_total_supply is in the token's smallest unit -- this endpoint doesn't return the token's decimals, so divide by 10**decimals yourself for a human-readable amount (most ERC-20s use 18, but not all).",
"chain": "eth",
"token_contract": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"raw_total_supply": "49571331689759662"
}
}Tags
x402
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