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Vextorium NFTs of Wallet
x402
Vextorium NFTs of Wallet 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 all ERC-721 token IDs held by a wallet address for a given NFT collection contract, plus the total count, across 12 supported EVM chains.
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
A JSON object containing the wallet address, collection contract address, network name, an array of token ID strings owned by that wallet, and a numeric count of the total tokens held.
Example use cases
NFT portfolio audit for a wallet
“Can you list all the token IDs from the Azuki collection (contract 0xED5AF388653567Af2F388E6224dC7C4b3241C544) held by the wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum?”
Gating access by NFT ownership
“Check if the wallet 0xAbCd1234... holds any tokens from the Pudgy Penguins contract 0xBd3531dA5CF5857e7CfAA92426877b022e612cf8 on Ethereum — I need the token IDs to verify membership.”
Cross-chain NFT collection snapshot
“What token IDs from the contract 0x1234abcd... does the wallet 0x9876fedc... own on Polygon? I want to see their full holdings up to a limit of 50.”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/nfts-of-wallet?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to enumerate specific ERC-721 token IDs held by a wallet for a known collection contract, especially on EVM chains beyond Ethereum (Base, Arbitrum, Optimism, Polygon, BNB, Avalanche, Gnosis, Linea, Scroll, Sonic, Unichain). It's ideal for NFT-gating, portfolio audits, or snapshot tooling where you need the actual token IDs rather than just balances. Prefer this over general NFT indexers when you need lightweight per-collection lookups with pay-per-call pricing.
Side effects
- Wallet owns no tokens from the specified contract — returns empty token_ids array with amount 0
- Contract is not enumerable (does not implement ERC-721Enumerable) — lookup via tokenOfOwnerByIndex fails or returns error
- Invalid wallet or contract address format — request rejected with validation error
- Unsupported network specified — returns error; only the 12 listed chains are supported
- Rate limiting or payment failure via x402 — call rejected before execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | |
| address | string | |
| network | string | Chain (default base) |
| contract | string |
Output
Schema · Response
{
"type": "json",
"example": {
"amount": 1,
"wallet": "0x46EFbAedc92067E6d60E84ED6395099723252496",
"network": "ethereum",
"token_ids": [
"1"
],
"collection": "0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D"
}
}Tags
x402
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