x402-gated NFT data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at `/api/v1/nfts/79` is part of the lowpaymentfee.com platform, which offers a collection of x402-protocol pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. The specific `/nfts/79` path appears to serve NFT-related data, though the exact response payload is not documented beyond the generic "Premium API Access" label. All endpoints on the platform share a uniform $0.02 per-request pricing model settled in USDC on the Base network.
The endpoint is live and returns a valid x402 challenge (HTTP 402) with `maxAmountRequired` of 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals), which equals $0.02. Payment is made via the x402 `exact` scheme to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`. The response MIME type is `application/json` and the expected HTTP method is POST. No API keys or rate limits are advertised; access is gated purely by the x402 micropayment.
Documentation is minimal. The platform's landing page lists many endpoints but provides no request/response schemas, parameter descriptions, or example payloads for any of them, including this NFT endpoint. The `/api`, `/pricing`, and `/README` pages all resolve to a bare "Connect wallet" prompt with no additional content. Without knowing what parameters the POST body accepts or what the response JSON contains, integrators will need to experiment or contact the provider directly.
Capabilities
Use cases
- —Fetching NFT metadata or details for a specific token (ID 79) via a single paid request
- —Integrating low-cost NFT data lookups into agent workflows without managing API keys
- —Programmatic NFT data retrieval settled on-chain via Base USDC micropayments
Fit
Best for
- —Agents or bots that need keyless, on-demand NFT data access
- —Developers prototyping x402-based micropayment integrations
- —Low-volume NFT data consumers who prefer pay-per-use over subscriptions
Not for
- —High-volume NFT indexing (no bulk endpoints or batch pricing documented)
- —Users who need detailed API 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/79 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, confirming pricing and payment details. However, there is zero documentation on request parameters, response schema, or what data is actually returned. The NFT endpoint is not even listed on the provider's landing page (which lists analytics, AI, finance, and utility endpoints but not NFTs). This is effectively a stub listing.
Warnings
- —No request or response schema documented for this endpoint
- —The /api/v1/nfts/79 path is not listed among the provider's advertised endpoints on the landing page
- —All documentation pages (/api, /pricing, /README) return only a 'Connect wallet' prompt with no useful content
- —Exact nature of the data returned is unknown — 'Premium API Access' is a generic label applied to all endpoints
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/nfts/79
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/nfts/79
- —Platform advertises $0.02 per request, no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —Documentation pages /api, /pricing, /README show only 'Connect wallet' with no additional contenthttps://lowpaymentfee.com/api