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Synapse API — Optimism NFT Floor Price
x402
Synapse API — Optimism NFT Floor Price 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 2026-10-27).
Returns the current floor price for an NFT collection on the Optimism blockchain given a contract address.
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 the current floor price for the specified NFT contract on the Optimism network, typically expressed as a numeric value in ETH or the relevant native token, representing the lowest listed price for any NFT in that collection.
Example use cases
NFT investment research on Optimism
“What's the floor price right now for the NFT collection at contract 0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13d on Optimism? I'm trying to decide if it's worth buying in.”
Automated NFT portfolio tracker
“Check the floor price for my Optimism NFT holdings — the contract address is 0x8a90CAb2b38dba80c64b7734e58Ee1dB38B8992e — I want to see if it's dropped below my buy price.”
Comparative NFT market monitoring
“Pull the floor price for the NFT contract 0x60E4d786628Fea6478F785A6d7e704777c86a7c6 on Optimism so I can compare it to what it was last week and spot any trends.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/optimism/nft/floor-price?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need floor price data for an NFT collection deployed on the Optimism (OP) Layer 2 network. It is pay-per-call at $0.01 USDC via x402, making it cost-effective for spot lookups. Prefer this over general NFT APIs when you need Optimism-specific data and want to pay only for what you use without a subscription.
Side effects
- Invalid or non-existent contract address returns an error or empty result
- Contract address is on a different chain (not Optimism) causing no data found
- NFT collection has no active listings so floor price is unavailable
- Malformed contract address format causes a validation error
- Network or upstream data source outage returns a 503 or timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| contractAddress | string |
Tags
x402
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