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Synapse API — NFTs by Owner on Base
x402
Synapse API — NFTs by Owner on Base is a paid API for AI agents from synapse-api-brown.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Retrieves all NFTs owned by a given wallet address on the Base blockchain network
Price / call$0.01
Success—
StatusUnknown
How this service works
High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.
Output
Returns a paginated list of NFTs owned by the specified wallet on the Base blockchain, including token IDs, contract addresses, NFT metadata (name, image, description), and an optional pageKey for fetching the next page of results.
Example use cases
NFT portfolio viewer for a wallet
“What NFTs does the wallet 0xAbCd1234...5678 currently own on Base? Show me up to 50.”
NFT-gated access verification
“Check if the wallet 0xDeadBeef...1234 holds any NFTs on Base — I need to verify their holdings before granting access.”
Paginated NFT collection audit
“Fetch the next page of NFTs owned by 0xABCD...9876 on Base using this page key: abc123xyz, and limit it to 25 results.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/base/nft/by-owner?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need NFT holdings data for a wallet on the Base blockchain network. Prefer this over generic multi-chain NFT endpoints when your use case is Base-specific, and over on-chain RPC calls when you want pre-indexed, metadata-enriched NFT data without raw contract interaction.
Side effects
- Invalid or malformed owner address returns an error or empty result
- Owner address with no NFTs returns an empty list
- Invalid pageKey causes pagination failure or error
- Rate limiting or payment failure (x402) blocks the request
- Base network unavailability causes timeout or upstream error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | number | |
| owner | string | |
| pageKey | string |
Tags
x402
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