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/32

What it does

This endpoint at `/api/v1/nfts/32` 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 32), though the exact response payload is not documented. Payment is settled on the Base network using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) at a cost of $0.02 per request (20,000 base units with 6 decimals). The x402 challenge was successfully captured, confirming the endpoint is live.

The platform advertises a uniform $0.02/request pricing model across all its endpoints with no API keys, no rate limits, and no minimum commitments. Callers authenticate purely via the x402 payment header. The endpoint accepts HTTP POST requests and returns `application/json`. However, there is no OpenAPI schema, no documented request body format, and no example responses available for this specific NFT endpoint, so the exact input parameters and output structure remain unknown.

The broader lowpaymentfee.com site hosts roughly 16 listed endpoints across four categories (Data & Analytics, AI & Machine Learning, Finance & Web3, Infrastructure), all following the same x402 payment pattern on Base with USDC settlement.

Capabilities

x402-paymentusdc-settlementbase-networknft-datapay-per-requestno-api-keyjson-response

Use cases

  • —Fetching NFT metadata or details for a specific token/collection
  • —Integrating NFT data into agent workflows without managing API keys
  • —Programmatic access to NFT information with micropayment settlement

Fit

Best for

  • —Agents or bots that need on-demand NFT data without subscription overhead
  • —Developers experimenting with x402 payment protocol integrations
  • —Low-volume consumers who prefer pay-per-request over monthly plans

Not for

  • —High-volume NFT data consumers who need bulk/batch endpoints
  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —Anyone requiring non-USDC or non-Base-network payment settlement

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/nfts/32 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/nfts/32
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no request/response examples, and no documentation for what this NFT endpoint actually returns. The endpoint path suggests NFT data but specifics are entirely unknown.

Warnings

  • —No OpenAPI or schema documentation available for this endpoint
  • —Request body format and response structure are completely undocumented
  • —The /api, /pricing, and /README pages all returned only a 'Connect wallet' prompt with no useful content
  • —It is unclear what NFT data resource ID 32 refers to or what parameters the POST body accepts

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-21 23:21:13Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/N8MFKp
x402-gated NFT data endpoint on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart