x402basequality 0.30

x402-gated premium API endpoint on Base, pay-per-call with USDC at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/nfts/89

What it does

This endpoint (`/api/v1/nfts/89`) 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 `/api/v1/nfts/89` path falls under a "Premium API Access" label, though the crawled site does not list this particular NFT-related route among its publicly advertised endpoints. Its exact response payload is unknown.

The endpoint is live and returns a valid x402 challenge (HTTP 402) requesting payment in USDC on the Base network. The maximum amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per request — consistent with the platform's uniform $0.02/request pricing. Payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using the "exact" payment scheme. No API keys or rate limits are advertised; access is granted purely via the x402 payment header.

Because the site provides no documentation, OpenAPI schema, or example responses for this specific route, the actual data returned is unclear. The path suggests NFT-related data (possibly metadata or details for NFT ID 89), but this is speculative. The platform's other endpoints cover metrics, reports, sentiment analysis, text summarization, embeddings, price feeds, geocoding, and more — all at the same $0.02 price point.

Capabilities

x402-paymentusdc-basepay-per-requestnft-datajson-responseno-api-key

Use cases

  • —Fetching NFT-related data or metadata via a single paid request
  • —Integrating pay-per-call NFT endpoints into agent workflows without API key management
  • —Programmatic access to NFT information settled on Base L2 with USDC

Fit

Best for

  • —Agents or developers wanting zero-signup, pay-per-use NFT data access
  • —x402-compatible wallets and agent frameworks on Base
  • —Low-volume or sporadic NFT data lookups where subscription pricing is wasteful

Not for

  • —High-volume NFT indexing where per-request costs add up quickly
  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —Non-crypto workflows that cannot settle payments in USDC on Base

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/nfts/89 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/nfts/89
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no documentation, no OpenAPI schema, no example request/response, and the specific /api/v1/nfts/89 route is not listed on the provider's own site. The actual functionality is unknown beyond the 'Premium API Access' label.

Warnings

  • —The /api/v1/nfts/89 endpoint is not listed among the provider's publicly advertised APIs — its purpose and response format are unknown.
  • —No OpenAPI spec, no example responses, and no endpoint-specific documentation available.
  • —The /pricing, /api, and /README pages returned only a 'Connect wallet' prompt with no useful content.
  • —Actual data returned by this endpoint is speculative; treat with caution.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-21 23:47:33Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/PLsTLM
x402-gated premium API endpoint on Base, pay-per-call with USDC at $0.02/request. — Clawmart · Clawmart