NFT collection floor-price endpoint, pay-per-call via x402 on Base with USDC.
What it does
This endpoint at lowpaymentfee.com returns the floor price for NFT collection ID 49. It is part of a broader platform offering pay-per-request APIs across data analytics, AI/ML, finance/Web3, and infrastructure categories — all settled via the x402 protocol on the Base network using USDC.
The specific endpoint `/api/v1/collections/49/floor` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform emphasizes simplicity: no API keys, no rate limits, no subscriptions — just attach an x402 payment header and receive the response. Payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout.
Documentation is extremely sparse. The landing page lists many endpoints but provides no request/response schemas, parameter descriptions, or example payloads. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional content. It is unclear which blockchain or NFT marketplace the collection ID 49 refers to, and there is no documentation on what fields the response contains.
Capabilities
Use cases
- —Fetching the current floor price of a specific NFT collection for trading bots
- —Monitoring NFT collection valuations in automated dashboards
- —Integrating floor-price data into agent workflows that settle payments on Base
Fit
Best for
- —Agents or bots needing on-demand NFT floor prices without API key management
- —Developers experimenting with x402 micropayments for data access
- —Low-volume, pay-as-you-go NFT market data retrieval
Not for
- —High-volume NFT analytics requiring bulk historical data
- —Users who need detailed collection metadata, traits, or sales history
- —Anyone needing well-documented, schema-specified API contracts
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/collections/49/floor \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02/request in USDC on Base). However, there is no documentation, no request/response schema, no examples, and no information about what collection 49 represents. The docs pages are empty. This is effectively a stub listing.
Warnings
- —No API documentation available — docs, pricing, and README pages all show only 'Connect wallet'
- —No request or response schema provided; unknown what fields the floor-price response contains
- —Collection ID 49 is unidentified — no indication of which NFT marketplace or blockchain it references
- —The platform lists many endpoints on its landing page but none appear to have public documentation
Citations
- —The x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/collections/49/floor
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/collections/49/floor
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —Docs, API, pricing, and README pages render only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs