NFT collection floor-price data via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint returns floor-price data for NFT collection ID 44 via the x402 payment protocol. It is hosted on lowpaymentfee.com, a platform that offers a variety of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all settled on the Base network using USDC.
The specific endpoint `/api/v1/collections/44/floor` accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers attach an `X-PAYMENT` header containing a signed USDC payment on Base. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` with a timeout of 300 seconds.
Documentation beyond the landing page is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI schema, no example request/response payloads, and no description of what fields the floor-price response contains. The endpoint is confirmed live (returns a proper 402 challenge), but the actual response schema and collection identity (collection 44) are unknown.
Capabilities
Use cases
- —Fetching real-time floor prices for NFT collections programmatically
- —Building NFT portfolio trackers that need floor-price feeds
- —Agent-driven NFT trading bots that need on-demand pricing data
Fit
Best for
- —Developers needing low-cost, keyless NFT floor-price lookups
- —AI agents with x402-compatible wallets on Base
- —Applications that prefer pay-per-call over subscription billing
Not for
- —Users who need bulk historical NFT price data (no batch or historical endpoints documented)
- —Developers without a Base-network USDC wallet for x402 payments
- —Anyone needing detailed collection metadata beyond floor price
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/collections/44/floor \
-H "X-PAYMENT: <x402-signed-payment-header>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, no information about what collection 44 is, and all documentation pages return only a wallet-connect prompt. This is effectively a stub listing.
Warnings
- —No API documentation available — docs, pricing, and README pages all render only 'Connect wallet' with no content.
- —No OpenAPI or output schema provided; response format is completely unknown.
- —Collection ID 44 is unidentified — no metadata about which NFT collection this covers.
- —No example requests or responses available anywhere in the crawl.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/collections/44/floor
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/collections/44/floor
- —Platform advertises $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com