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/91

What it does

This endpoint at `/api/v1/nfts/91` is part of the lowpaymentfee.com platform, a collection of x402-protocol pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. The specific resource appears to serve NFT-related data (inferred from the URL path `/nfts/91`), though no detailed documentation or response schema is available beyond the generic "Premium API Access" label.

Payment is handled via the x402 protocol on the Base network. The endpoint accepts USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) with a maximum amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). The payment scheme is "exact," meaning each request requires a single micropayment. No API keys or rate limits are advertised — access is gated purely by the x402 payment header.

The platform lists many other endpoints at similar $0.02 price points across categories like sentiment analysis, text summarization, geocoding, and crypto gas estimates. However, the crawled documentation pages (`/api`, `/pricing`, `/README`) all returned only a "Connect wallet" prompt with no substantive content, so the actual data returned by this NFT endpoint and its input parameters remain undocumented.

Capabilities

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

Use cases

  • —Fetching NFT metadata or details for a specific token ID
  • —Integrating NFT data into an agent workflow without managing API keys
  • —Making one-off NFT data queries with per-request USDC micropayments

Fit

Best for

  • —Agents that need keyless, pay-per-call NFT data access
  • —Developers testing x402 protocol integrations on Base
  • —Low-volume NFT data lookups where subscription APIs are overkill

Not for

  • —High-volume NFT indexing (no bulk/batch endpoint documented)
  • —Users who need detailed API documentation or guaranteed SLAs
  • —Non-crypto users who cannot pay in USDC on Base

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/nfts/91 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/nfts/91
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02 USDC on Base). However, there is no documentation of request parameters, response schema, or what data the /nfts/91 resource actually returns. The crawled docs pages were empty. This is effectively a stub listing.

Warnings

  • —No documentation available for this specific endpoint — request/response schema unknown
  • —All documentation pages (/api, /pricing, /README) returned only 'Connect wallet' with no content
  • —The purpose of /api/v1/nfts/91 is inferred solely from the URL path; actual functionality is unverified
  • —No OpenAPI spec or AI plugin manifest found

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-22 00:35:35Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

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