x402basequality 0.35

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/27

What it does

This endpoint at `/api/v1/nfts/27` 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 27), 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 endpoint is live and returns a valid x402 challenge (HTTP 402) with `maxAmountRequired` 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 platform advertises no API keys, no rate limits, and instant access — callers simply attach an `X-PAYMENT` header with a valid x402 payment proof.

Note that the `/api/v1/nfts/27` endpoint is not listed on the provider's landing page among the advertised API categories (Data & Analytics, AI & ML, Finance & Web3, Infrastructure). It may be an unlisted or supplementary endpoint. No OpenAPI schema, request/response examples, or detailed documentation were found for this specific resource, so the exact input parameters and output format remain unknown.

Capabilities

x402-paymentusdc-settlementbase-networknft-datapay-per-requestno-api-keyhttp-post

Use cases

  • —Fetching NFT metadata or details for a specific token/collection
  • —Integrating NFT data into agent workflows without managing API keys
  • —Programmatic pay-per-request access to NFT information on Base

Fit

Best for

  • —Agents or bots that need on-demand NFT data without subscription overhead
  • —Developers testing x402 payment flows with low-cost endpoints
  • —Web3 applications needing USDC-settled API access on Base

Not for

  • —Bulk NFT data retrieval requiring thousands of calls (no documented batch endpoint)
  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —Non-crypto users who cannot generate x402 payment proofs

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/nfts/27 \
  -H "X-PAYMENT: <x402_payment_proof>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/nfts/27
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no documentation, no OpenAPI schema, no request/response examples, and the endpoint is not even listed on the provider's own landing page. The actual functionality behind /api/v1/nfts/27 is entirely opaque.

Warnings

  • —Endpoint /api/v1/nfts/27 is not listed among the provider's advertised APIs on the landing page — may be unlisted or experimental.
  • —No request parameters or response schema documented anywhere; actual output format is unknown.
  • —No OpenAPI spec, README, or detailed docs were retrievable (pages behind wallet connect).
  • —The provider site appears to be a generic multi-category API platform; the depth and reliability of each endpoint is unclear.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-21 23:37:08Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/u926yY
x402-gated NFT data endpoint on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart