NFT collection floor-price data via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint at lowpaymentfee.com returns floor-price data for NFT collection ID 11. It is part of a broader suite of pay-per-call APIs offered by lowpaymentfee.com, all priced at $0.02 per request and settled in USDC on the Base network via the x402 protocol. No API keys or accounts are required — callers simply attach an x402 payment header to each POST request.
The x402 challenge confirms the endpoint is live and accepts USDC (contract 0x8335…2913 on Base) with a maxAmountRequired of 20,000 base units, which equals $0.02 given USDC's 6-decimal precision. The payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout window. The response MIME type is application/json.
The provider's landing page lists many other endpoints spanning data analytics, AI/ML inference, finance/Web3 market data, and utility services — all at the same $0.02 price point. However, documentation beyond the landing page is essentially empty (all sub-pages just show "Connect wallet"), so there is no schema documentation for request bodies or response shapes for this specific collections/floor endpoint. The exact request parameters and response fields must be discovered experimentally.
Capabilities
Use cases
- —Retrieve the current floor price for a specific NFT collection
- —Feed NFT floor-price data into trading bots or portfolio trackers
- —Monitor NFT market trends programmatically without API key management
Fit
Best for
- —Agents or bots that need on-demand NFT floor prices without signup
- —Developers who prefer pay-per-call micropayments over subscription APIs
- —Crypto-native applications already holding USDC on Base
Not for
- —Users needing bulk historical NFT price data (no batch or historical endpoint documented)
- —Applications that cannot settle payments in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/collections/11/floor \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is zero documentation for request/response schemas. All doc pages return only 'Connect wallet'. The endpoint path suggests NFT collection floor data, but this is inferred from the URL — no explicit description exists beyond the generic 'Premium API Access' label.
Warnings
- —No request or response schema documentation available — all doc/pricing/README pages are empty stubs
- —The endpoint purpose (NFT collection floor price) is inferred solely from the URL path; the provider labels it only as 'Premium API Access'
- —This specific endpoint (/api/v1/collections/11/floor) is not listed on the provider's landing page among their advertised APIs
- —No OpenAPI spec or AI plugin manifest found
Citations
- —The x402 challenge returns maxAmountRequired of 20000 base units in USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base networkhttps://lowpaymentfee.com/api/v1/collections/11/floor
- —All APIs on the site are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —Documentation, pricing, and README pages all render only 'Connect wallet' with no substantive contenthttps://lowpaymentfee.com/docs