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santyvv-data Token Balance Lookup
x402
santyvv-data Token Balance Lookup is a paid API for AI agents from x402.santyvv.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).
Returns the on-chain token balance for a given wallet address and token on Base or other supported chains, paid per call via x402/USDC
Price / call$0.02
Success—
StatusUnknown
How this service works
Market and on-chain data, paid per call in USDC on Base through the x402 protocol. No accounts, no API keys. Sources are public data providers; the value added here is keyless access, edge caching, multi-source fallback and normalised responses.
Output
A normalised JSON response containing the token balance for the specified wallet and token contract, sourced from on-chain data with edge caching and multi-source fallback. Typically includes the raw balance, decimals, and formatted amount.
Example use cases
DeFi portfolio balance checker
“Can you check how many tokens wallet 0x1234...abcd holds for the token at contract 0xA0b8...eB48 on Base?”
Airdrop eligibility verification
“Before we distribute the airdrop, check on-chain whether wallet 0xDead...Beef already holds any of our token at 0xToken...Contract on Base.”
Smart contract treasury audit
“What's the current on-chain balance of USDC held by our treasury contract at 0xTreasury...Addr on Base?”
Technical details
Endpoint
GEThttps://x402.santyvv.com/api/chain/token-balance?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, keyless on-chain token balance lookup without setting up API accounts or managing API keys. It is ideal for agents that need per-call blockchain data access billed in USDC micropayments via x402, especially for Base chain tokens. Prefer it over self-hosted RPC calls when you want normalised responses and edge caching without infrastructure overhead.
Side effects
- Invalid or malformed wallet address returns an error response
- Unsupported token contract address returns empty or error
- Chain not supported returns 400 or equivalent error
- Payment failure (insufficient USDC, x402 rejection) results in 402 response with no data
- RPC unavailability on all fallback sources may cause timeout or 503
- Missing required query parameters (address, token) returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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