NFT collection floor-price data via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint returns the floor price for NFT collection #47 hosted on lowpaymentfee.com. It is part of a broader suite of pay-per-call APIs offered by the same provider, spanning data analytics, AI/ML inference, finance/Web3 data, and utility services. All endpoints use the x402 protocol for payment, settling in USDC on the Base network at $0.02 per request.
The specific endpoint `/api/v1/collections/47/floor` is not explicitly listed on the provider's landing page among the advertised API categories, but it follows the same x402 payment pattern. The 402 challenge confirms it is live, accepts POST requests, and requires payment of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. No API keys or rate limits are advertised; access is gated purely by micropayment.
Documentation is extremely sparse. The /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available. The endpoint's actual response format must be inferred — it likely returns JSON with floor-price data for the specified collection, but the exact fields are unknown.
Capabilities
Use cases
- —Fetching the current floor price of a specific NFT collection for trading bots
- —Monitoring NFT collection valuations in a portfolio dashboard
- —Integrating floor-price data into an agent workflow that decides when to buy/sell NFTs
Fit
Best for
- —Agents needing on-demand NFT floor-price lookups without API key management
- —Micropayment-native workflows on Base that want sub-cent transaction overhead
- —Developers prototyping NFT analytics without subscription commitments
Not for
- —High-frequency bulk data ingestion where per-call pricing adds up quickly
- —Users who need detailed collection metadata, trait analysis, or historical charts (not evidenced here)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/collections/47/floor \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no examples, and the specific collection-floor endpoint isn't even listed on the provider's own landing page. Documentation pages are empty beyond a wallet-connect prompt. This is effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available; request and response formats are unknown.
- —The endpoint /api/v1/collections/47/floor is not listed among the provider's advertised APIs — it may be undocumented or experimental.
- —All documentation pages (/docs, /pricing, /api, /README) return only a 'Connect wallet' prompt with no usable content.
- —Collection ID 47 is hardcoded in the path; it is unclear what collection this refers to or whether other IDs are valid.
Citations
- —The endpoint returns HTTP 402 with an x402 challenge requiring 20,000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/collections/47/floor
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/collections/47/floor
- —All APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com