x402basequality 0.35

NFT collection floor-price lookup via x402 micropayment on Base, $0.02 per request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/collections/39/floor

What it does

This endpoint returns the floor price for NFT collection ID 39 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 on the Base network, settling in USDC at $0.02 per request.

The specific endpoint `/api/v1/collections/39/floor` accepts POST requests and returns JSON. Based on the URL structure, it likely serves NFT or digital-asset collection floor-price data, though the provider does not publish detailed documentation for this particular route. The x402 challenge confirms the endpoint is live, requires an exact payment of 20,000 base units of USDC (0.02 USD given 6 decimals) on Base, and responds with `application/json`.

No API keys or rate limits are advertised. Payment is handled entirely through the x402 `X-PAYMENT` header. The provider's landing page lists many other endpoints at the same price point, but crawled documentation pages (`/docs`, `/pricing`, `/README`) returned only a wallet-connect prompt with no substantive content, so detailed request/response schemas are unavailable.

Capabilities

nft-floor-pricex402-paymentusdc-basepay-per-requestcollection-datajson-api

Use cases

  • —Fetching the current floor price of a specific NFT collection for trading bots
  • —Monitoring NFT collection valuations in a portfolio dashboard
  • —Providing floor-price data to an AI agent making purchase decisions
  • —Integrating real-time NFT pricing into a Web3 application

Fit

Best for

  • —Agents or bots needing on-demand NFT floor prices without API key management
  • —Developers who want pay-per-call pricing with no subscription commitment
  • —x402-compatible clients settling micropayments in USDC on Base

Not for

  • —Bulk historical NFT price data retrieval (no batch or historical endpoint documented)
  • —Users who need detailed collection metadata beyond floor price

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/collections/39/floor \
  -H "X-PAYMENT: <x402-payment-token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/collections/39/floor
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The x402 challenge is live and confirms pricing and network, but there is no OpenAPI schema, no request/response examples, and the documentation pages are empty (wallet-connect only). The specific endpoint path (collections/39/floor) is not listed on the provider's landing page, making its exact behavior inferrable only from the URL pattern. Effectively a stub listing.

Warnings

  • —No documentation available — /docs, /pricing, and /README pages all returned only a wallet-connect prompt with no content.
  • —The endpoint /api/v1/collections/39/floor is not listed among the provider's advertised APIs on the landing page; its purpose is inferred from the URL structure.
  • —No request or response schema is published; callers must discover the expected payload experimentally.
  • —Collection ID 39 is hardcoded in the path; it is unknown whether other collection IDs are supported or what collections are available.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 18:02:46Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-19
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/K3Ag6j
NFT collection floor-price lookup via x402 micropayment on Base, $0.02 per request. — Clawmart · Clawmart