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NFT Collections Portfolio Lookup
x402
NFT Collections Portfolio Lookup is a paid API for AI agents from stablecrypto.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Retrieves the NFT collections held across one or more wallet addresses on a specified blockchain network
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-request access to CoinGecko, DefiLlama, Alchemy, and Etherscan APIs. No auth, no subscriptions.
Output
Returns an object keyed by wallet address or collection identifier, containing the NFT collections held in the specified wallets, with optional metadata such as collection names, images, and descriptions depending on the withMetadata flag.
Example use cases
Example prompt
“What NFT collections are held in the wallet 0xAbc123...def456 on eth-mainnet? Include metadata about each collection.”
Technical details
Endpoint
POSThttps://stablecrypto.dev/api/alchemy/portfolio/nft-collectionsWhen to prefer
Use this endpoint when you need to retrieve NFT holdings grouped by collection for one or more wallet addresses on a specific EVM-compatible network. Prefer this over the sibling NFT balances endpoint when you want collection-level aggregation rather than individual token-level detail. Best suited for portfolio dashboards, NFT analytics, or when you need to understand what collections a user participates in.
Side effects
- Invalid or unsupported network slug returns an error
- Malformed or non-existent wallet address returns empty or error response
- Missing required fields (network or addresses) returns a validation error
- Rate limiting or payment failure returns a 402 or 429 status
- Network congestion may delay Alchemy response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| network | string | Alchemy network slug, e.g. eth-mainnet, base-mainnet |
| addresses | array | Wallet addresses |
| withMetadata | boolean |
Tags
x402
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