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Synapse API — NFT Holdings by Owner (Sonic Network)
x402
Synapse API — NFT Holdings by Owner (Sonic Network) 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 2026-10-17).
Returns all NFTs owned by a given wallet address on the Sonic blockchain network, with pagination support.
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
A list of NFTs owned by the specified wallet address on the Sonic network, including token identifiers and metadata, along with a pagination key for fetching subsequent pages if the result set is large.
Example use cases
NFT portfolio audit for a Sonic wallet
“I want to see every NFT currently held by wallet 0xAbCd...1234 on the Sonic network — show me up to 50 at a time.”
Verifying NFT ownership before a trade
“Can you check whether wallet 0xDead...Beef actually owns any NFTs on Sonic right now before I proceed with this deal?”
Paginating through a large NFT collection
“I pulled the first 25 NFTs for address 0x9999...0000 on Sonic, now I need the next page using the cursor from the last response.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/sonic/nft/by-owner?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need NFT ownership data on the Sonic blockchain network. It is ideal for building portfolio dashboards, verifying ownership before peer-to-peer trades, or paginating through large NFT collections held by a single wallet. Prefer this over general multi-chain NFT APIs when Sonic network coverage is the explicit requirement.
Side effects
- Invalid or malformed wallet address returns an error or empty result
- Unsupported or non-existent address on Sonic returns an empty NFT list
- Invalid pageKey causes pagination failure or unexpected results
- Rate limit or payment failure (402) if USDC balance is insufficient
- Network or provider timeout resulting in a 500 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | number | |
| owner | string | |
| pageKey | string |
Tags
x402
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