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/26

What it does

This endpoint at `/api/v1/nfts/26` 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/26`), though the provider's landing page labels it generically as "Premium API Access" without detailing the response payload.

Payment is handled via the x402 protocol on the Base network. The challenge advertises a maximum amount of 20,000 base units of USDC (contract `0x8335…2913`, 6 decimals), which equals $0.02 per request. No API keys or rate limits are advertised; callers simply attach an `X-PAYMENT` header with a valid x402 payment proof. The endpoint accepts POST requests and returns `application/json`.

The broader lowpaymentfee.com platform lists roughly 16 endpoints across four categories (Data & Analytics, AI & ML, Finance & Web3, Infrastructure), all priced at $0.02 per call. Documentation beyond the landing page is essentially absent — the `/api`, `/pricing`, and `/README` routes all return only a "Connect wallet" prompt with no further technical detail. Because no response schema or example payloads are provided, the exact structure and content of the NFT data returned by this endpoint remain unknown.

Capabilities

x402-paymentusdc-basenft-datapay-per-requestno-api-keyjson-response

Use cases

  • —Fetching NFT data or metadata on demand without managing API keys
  • —Programmatic agent access to NFT information with per-call USDC micropayments
  • —Integrating NFT lookups into x402-compatible agent workflows

Fit

Best for

  • —Developers or agents already using x402 payment flows on Base
  • —Low-volume, on-demand NFT data retrieval without subscription commitments
  • —Experimenting with pay-per-call crypto-settled APIs

Not for

  • —High-volume NFT indexing where bulk pricing or free tiers are needed
  • —Users who need detailed documentation or guaranteed SLAs before integrating
  • —Non-crypto workflows that cannot produce x402 payment headers

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/nfts/26 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/nfts/26
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no response schema, no example payloads, and the exact data returned is unknown. The landing page provides only a generic label. This is effectively a stub listing.

Warnings

  • —No documentation available — /api, /pricing, and /README pages all return only a 'Connect wallet' prompt with no technical content.
  • —Response schema and payload structure are completely unknown; 'Premium API Access' is the only description provided.
  • —The NFT-related nature of this endpoint is inferred solely from the URL path /api/v1/nfts/26; the provider does not list it on the landing page among its advertised endpoints.
  • —No examples, error codes, or rate-limit information are documented.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-21 23:38:48Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

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