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Synapse API — Avalanche NFT Sales
x402
Synapse API — Avalanche NFT Sales 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).
Retrieves NFT sales transaction data on the Avalanche blockchain, filterable by contract address and block range.
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 list of NFT sale events on the Avalanche network matching the specified filters, including sale transaction details, block numbers, contract addresses, and related metadata. Results are paginated up to the specified limit and ordered as requested.
Example use cases
Track NFT Collection Sales Activity
“Get me the most recent 100 NFT sales on Avalanche for contract 0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E, sorted from newest to oldest, across blocks 38000000 to 38500000.”
Analyze Historical NFT Trading Volume
“Fetch all NFT sales on Avalanche between blocks 30000000 and 32000000 for contract 0xCE0fCB5f5a62987B07968b5b1C1D4E3D4c7E4C7A, sorted ascending so I can see how volume grew over time.”
Monitor NFT Floor Price Movements
“Give me the last 25 NFT sales for the Avalanche contract 0x9C45fF4b7b6c732a5B46CA6cA1E8E9ae2b30B456 in descending order — I want to spot recent price trends.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/avalanche/nft/sales?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need NFT sales data on the Avalanche (AVAX) blockchain. It is well-suited for querying historical sales activity for a specific NFT contract or across a defined block range. Prefer this over generic blockchain explorers when you need programmatic, filterable, pay-per-call access without committing to a subscription.
Side effects
- Invalid contract address format returns a validation error
- Block range too large may result in timeout or truncated results
- fromBlock greater than toBlock causes query error
- No sales in the specified block range returns an empty result set
- Invalid order enum value (not 'asc' or 'desc') causes a 400 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | number | |
| order | string | |
| toBlock | number | |
| fromBlock | number | |
| contractAddress | string |
Tags
x402
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