x402basequality 0.30

x402-gated NFT data endpoint on Base, pay $0.02 per request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/nfts/52

What it does

This endpoint at `/api/v1/nfts/52` is part of the lowpaymentfee.com platform, which offers a collection of x402-protocol pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. The specific endpoint appears to serve NFT-related data (resource ID 52), though the exact response payload is not documented. Payment is settled on the Base network using USDC (contract `0x8335…2913`) at $0.02 per request (20,000 base units with 6 decimals).

The platform advertises a uniform $0.02/request pricing model across all endpoints with no API keys, no rate limits, and no minimum commitments. The x402 challenge was successfully captured, confirming the endpoint is live and accepting POST requests. However, there is no OpenAPI specification, no detailed documentation of request/response schemas, and the crawled docs and pricing pages only returned a "Connect wallet" prompt with no additional content. The NFT endpoint specifically is not listed on the homepage's catalog of available APIs, making its exact functionality unclear.

Because the endpoint's input parameters and output schema are undocumented, callers will need to experiment or contact the provider to understand what data is returned. The platform appears to be a demonstration or early-stage deployment of x402-based micropayment APIs on Base.

Capabilities

x402-paymentusdc-settlementbase-networknft-datapay-per-requestno-api-key

Use cases

  • —Fetching NFT metadata or details for a specific NFT (ID 52) via a single paid request
  • —Integrating pay-per-call NFT data into agent workflows without managing API keys
  • —Testing x402 micropayment protocol integrations on Base

Fit

Best for

  • —Developers experimenting with x402 pay-per-request protocols
  • —Agents needing keyless, on-demand NFT data access
  • —Low-volume, no-commitment API consumption

Not for

  • —Production workloads requiring documented, stable API contracts
  • —Bulk NFT data retrieval across many token IDs
  • —Users who need fiat-only payment options

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/nfts/52 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/nfts/52
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation of request parameters, response schema, or even what this NFT endpoint returns. The specific /nfts/52 path is not listed among the provider's advertised APIs, and all doc/pricing pages returned only a wallet-connect prompt.

Warnings

  • —No OpenAPI or schema documentation available for this endpoint
  • —The /api/v1/nfts/52 endpoint is not listed in the provider's homepage API catalog — its purpose and response format are unknown
  • —Docs, pricing, and README pages all returned only 'Connect wallet' with no useful content
  • —The platform appears to be early-stage or a demo; stability and longevity are uncertain

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-22 00:39:44Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/9BBZCH
x402-gated NFT data endpoint on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart