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 29 hosted on lowpaymentfee.com. It is part of a broader suite of x402-gated APIs offered by the same provider, spanning data analytics, AI/ML inference, finance/Web3, and utility services. All endpoints on the platform share a uniform $0.02-per-request pricing model settled in USDC on the Base network.
The specific endpoint `/api/v1/collections/29/floor` accepts POST requests and is protected by the x402 payment protocol (version 1). A valid `X-PAYMENT` header containing a signed USDC payment of up to 20,000 base units ($0.02, since USDC uses 6 decimals) is required. Payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base mainnet using the USDC contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`. The response MIME type is `application/json`.
Documentation beyond the landing page 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 example request/response payloads, and no description of what fields the floor-price response contains. The endpoint is live (returns a proper 402 challenge), but the lack of documentation makes it difficult to know the exact response schema or what collection ID 29 refers to.
Capabilities
Use cases
- —Fetching real-time floor prices for a specific NFT collection
- —Integrating NFT market data into trading bots or dashboards
- —Programmatic monitoring of NFT collection valuations
- —Agent-driven NFT price comparison across collections
Fit
Best for
- —Developers needing on-demand NFT floor-price lookups without API keys
- —AI agents that can settle x402 micropayments on Base
- —Low-volume or pay-as-you-go NFT data consumers
Not for
- —Bulk historical NFT data retrieval (no batch or historical endpoints documented)
- —Users without a Base-compatible USDC wallet
- —Anyone needing detailed collection metadata beyond floor price
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/collections/29/floor \
-H "X-PAYMENT: <signed-x402-payment-header>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a well-formed x402 challenge with clear pricing, but there is no OpenAPI spec, no documentation of request parameters or response schema, no example payloads, and no indication of what collection 29 actually is. The /docs and other pages are empty beyond a wallet-connect prompt.
Warnings
- —No OpenAPI or schema documentation available for this endpoint.
- —Response payload structure is completely unknown — no examples or field descriptions found.
- —Collection ID 29 is not identified; it is unclear which NFT collection this refers to.
- —All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no content.
- —The broader platform lists many endpoints but none have documented schemas; quality of underlying data is unverifiable.
Citations
- —Endpoint returns a 402 challenge with x402Version 1, requiring USDC payment of up to 20,000 base units ($0.02) on Base networkhttps://lowpaymentfee.com/api/v1/collections/29/floor
- —USDC contract address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/collections/29/floor
- —Platform advertises $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —Documentation pages (/docs, /pricing, /api, /README) show only 'Connect wallet' with no technical contenthttps://lowpaymentfee.com/docs