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/33

What it does

This endpoint at `/api/v1/nfts/33` is part of the lowpaymentfee.com platform, 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 33), though the exact response payload is not documented. Payment is settled on the Base network using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) via the x402 "exact" scheme.

The x402 challenge confirms the endpoint is live and returns a 402 Payment Required response with a max amount of 20,000 base units. Since USDC uses 6 decimals, this translates to $0.02 per request, consistent with the platform's uniform $0.02/request pricing across all listed APIs. The endpoint accepts POST requests and requires no API keys or account registration — callers simply attach an `X-PAYMENT` header with a valid x402 payment proof. The platform advertises no rate limits and instant access.

The broader lowpaymentfee.com platform offers roughly 16 endpoints across four categories (Data & Analytics, AI & ML, Finance & Web3, Infrastructure), all at the same $0.02 price point. Documentation is minimal: there is no OpenAPI spec, no request/response schema beyond the x402 output schema stub, and the `/api`, `/pricing`, and `/README` pages all resolve to a bare "Connect wallet" prompt with no additional content. The NFT endpoint specifically is not listed on the homepage's API catalog, making its exact functionality unclear.

Capabilities

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

Use cases

  • —Fetching NFT metadata or details for a specific token ID via a single paid request
  • —Integrating NFT data lookups into an AI agent workflow without managing API keys
  • —Programmatic access to NFT information with crypto micropayments

Fit

Best for

  • —Developers wanting keyless, pay-per-use NFT data access
  • —AI agents that can settle x402 payments on Base
  • —Quick one-off NFT data lookups without subscription commitments

Not for

  • —High-volume NFT indexing (no documented bulk endpoints or rate guarantees)
  • —Users who need detailed API documentation or response schema before integrating
  • —Non-crypto users who cannot settle USDC payments on Base

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/nfts/33 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/nfts/33
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation of what this NFT endpoint actually returns, and the endpoint is not even listed on the provider's homepage catalog. Effectively a stub listing.

Warnings

  • —No OpenAPI or schema documentation available for this endpoint
  • —The /api/v1/nfts/33 endpoint is not listed on the provider's homepage API catalog — its exact functionality is unknown
  • —All documentation pages (/api, /pricing, /README) return only a 'Connect wallet' prompt with no useful content
  • —Request body format and response payload structure are entirely undocumented

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-21 23:32:21Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

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