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Synapse API — Ink NFT Metadata Lookup
x402
Synapse API — Ink NFT Metadata Lookup 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 2026-09-15).
Retrieves NFT metadata for a given token ID and contract address on the Ink 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 NFT metadata associated with the given token ID and contract address on the Ink network, typically including the token name, description, image URL, and a list of attributes or traits as defined in the token's metadata URI.
Example use cases
NFT portfolio trait inspection
“Look up the metadata for token ID 77 on the Ink NFT contract 0x1234...abcd — I want to see all its traits and rarity attributes before I decide whether to buy it.”
Verify NFT artwork and description
“Can you fetch the metadata for token 500 from contract 0xDead...Beef on Ink? I need to confirm the image URL and description match what the seller is claiming.”
Display NFT in dapp gallery
“Get me the full metadata for token ID 12 on the Ink contract 0xFeed...Face so I can display the name, image, and properties in our gallery interface.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/ink/nft/metadataWhen to prefer
Use this endpoint when you need to fetch on-chain NFT metadata specifically from the Ink blockchain network. Prefer this over generic NFT metadata APIs when your target contract is deployed on Ink and you want fast, pay-per-call access without API key setup overhead.
Side effects
- Invalid or non-existent contract address returns an error or empty response
- Token ID does not exist on the specified contract, resulting in a not-found error
- Contract address belongs to a non-NFT contract, leading to unexpected or malformed output
- Network issues with the Ink blockchain RPC cause timeout or unavailability
- Malformed tokenId or contractAddress input triggers a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tokenId | string | |
| contractAddress | string |
Tags
x402
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