x402-gated NFT data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at `/api/v1/nfts/92` 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/92`), though the provider's landing page does not explicitly list this particular route among its advertised endpoints. The endpoint is live and returns a valid x402 challenge.
Payment is settled on the Base network using USDC (contract `0x8335…2913`) via the "exact" scheme. The `maxAmountRequired` is 20,000 base units, which at 6 decimals 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 response MIME type is `application/json` and the endpoint accepts HTTP POST.
The broader lowpaymentfee.com platform advertises a uniform $0.02/request pricing model across all its endpoints with no minimums or commitments. However, documentation is extremely thin — there is no OpenAPI spec, no request/response schema documentation, and no examples of what the NFT endpoint actually returns. The `/api`, `/pricing`, and `/README` pages all resolve to a minimal "Connect wallet" prompt with no additional information.
Capabilities
Use cases
- —Fetching NFT metadata or details for token ID 92 via a single paid API call
- —Integrating pay-per-request NFT data into an agent workflow without managing API keys
- —Programmatic access to NFT information settled in USDC on Base
Fit
Best for
- —Developers wanting zero-signup, pay-per-call NFT data access
- —AI agents that can handle x402 payment flows natively
- —Prototyping Web3 applications that need on-demand NFT lookups
Not for
- —Bulk NFT data retrieval at scale (no documented batch endpoints or rate-limit info)
- —Users who need detailed documentation or guaranteed SLAs before integrating
- —Non-crypto users who cannot settle payments in USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/nfts/92 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation of what the NFT endpoint returns, and the specific /nfts/92 route is not even listed on the provider's landing page. Effectively a stub listing.
Warnings
- —The /api/v1/nfts/92 endpoint is not listed among the provider's advertised APIs on the landing page — its purpose and response format are unknown.
- —No OpenAPI spec, request schema, or response schema is available anywhere.
- —All documentation pages (/api, /pricing, /README) return only a 'Connect wallet' prompt with no useful content.
- —The actual data returned by this endpoint is entirely undocumented; the NFT interpretation is inferred solely from the URL path.
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/nfts/92
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/nfts/92
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, and no minimumshttps://lowpaymentfee.com
- —The /api/v1/nfts/92 route is not listed among the provider's advertised endpointshttps://lowpaymentfee.com