x402basequality 0.35

NFT metadata endpoint on Base, pay-per-call via x402 with USDC at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/nfts/95/metadata

What it does

This endpoint serves NFT metadata for token ID 95 via a POST request, gated behind an x402 payment challenge. It is hosted on lowpaymentfee.com, a platform that offers a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per call and settled in USDC on the Base network.

The specific endpoint at `/api/v1/nfts/95/metadata` returns JSON (MIME type `application/json`) and requires an x402 payment header with a maximum amount of 20,000 base units of USDC (0x8335…2913 on Base). Since USDC uses 6 decimals, this translates to $0.02 per request. Payment is made to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using the "exact" scheme, with a timeout of 300 seconds.

The platform advertises no API keys, no rate limits, and instant access. However, the actual content returned by this NFT metadata endpoint is not documented — there is no OpenAPI schema, no example response, and no detailed documentation beyond the landing page listing. The broader site offers many other endpoints (sentiment analysis, text summarization, geocoding, price feeds, etc.) all at the same $0.02 price point, but specifics about the NFT metadata payload are unknown.

Capabilities

nft-metadatax402-paymentusdc-settlementbase-networkpay-per-requestjson-response

Use cases

  • —Retrieving metadata for NFT token ID 95 programmatically
  • —Integrating NFT metadata into a dApp or marketplace UI
  • —Agent-driven NFT data retrieval with micropayments

Fit

Best for

  • —Developers needing on-demand NFT metadata without API key management
  • —Agents that can settle x402 payments in USDC on Base
  • —Low-volume or sporadic NFT metadata lookups at $0.02/call

Not for

  • —Bulk NFT metadata retrieval across many token IDs (only token 95 is documented at this path)
  • —Users who cannot settle USDC payments on the Base network
  • —Applications requiring detailed schema guarantees or SLA commitments

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/nfts/95/metadata \
  -H "X-PAYMENT: <x402-payment-token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/nfts/95/metadata
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no example request/response, no documentation of what the NFT metadata payload contains, and the crawled pages beyond the landing page returned only 'Connect wallet' with no useful content. This is effectively a stub listing.

Warnings

  • —No documentation exists for the NFT metadata response schema or fields
  • —No example responses available — actual payload content is unknown
  • —Only token ID 95 is referenced; unclear if other token IDs are supported at similar paths
  • —Broader site pages (/api, /pricing, /README) returned no useful content beyond 'Connect wallet'

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-22 00:33:29Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/mG8Xkn
NFT metadata endpoint on Base, pay-per-call via x402 with USDC at $0.02/request. — Clawmart · Clawmart