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Vextorium ERC-1155 Balance Lookup
x402
Vextorium ERC-1155 Balance Lookup is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-15).
Returns the ERC-1155 token balance held by a wallet address for a specific token ID on a given EVM chain
Price / call$0.003
Success—
StatusUnknown
How this service works
558 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.
Output
Returns a JSON object with the wallet address, network, contract address, token ID, amount (balance as a number), and the token's metadata URI. A balance of 0 means the wallet does not hold that token.
Example use cases
NFT game item ownership check
“How many of item token ID 42 does wallet 0xABC123...DEF on the Polygon contract 0x111...999 currently hold? I need to verify if they have enough to enter the tournament.”
ERC-1155 airdrop eligibility verification
“Can you check if wallet 0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf holds any of ERC-1155 token ID 5 from contract 0x76BE3b62873462d2142405439777e971754E8E77 on Base? I need to see if they qualify for the airdrop.”
Multi-edition NFT balance audit
“Look up the balance of token ID 10373 from the Parallel Alpha NFT contract 0x76BE3b62873462d2142405439777e971754E8E77 on Ethereum for the wallet 0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf — and grab the metadata URI too.”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/erc1155-balance?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to check the balance of a specific ERC-1155 token ID for a specific wallet on a supported EVM chain (Base, Ethereum, Arbitrum, Optimism, Polygon, BNB, Avalanche, Gnosis, Linea, Scroll, Sonic, Unichain). It is ideal for ERC-1155 multi-token standard contracts (gaming items, semi-fungible tokens, multi-edition NFTs) where each token ID can have fractional or multiple holdings per wallet — unlike ERC-721 which is always 0 or 1.
Side effects
- Invalid wallet address format returns an error or null result
- Invalid or undeployed contract address yields a zero balance or error
- Unsupported network name returns a validation error
- Missing required fields (address, contract, token_id) returns a 400-level error
- Token ID not existing on the contract may return amount 0
- Network congestion or RPC issues may cause timeouts
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string | |
| network | string | Chain (default base) |
| contract | string | |
| token_id | string |
Output
Schema · Response
{
"type": "json",
"example": {
"uri": "https://nftdata.parallelnft.com/api/parallel-alpha",
"amount": 0,
"wallet": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"network": "ethereum",
"contract": "0x76BE3b62873462d2142405439777e971754E8E77",
"token_id": "10373"
}
}Tags
x402
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