x402-gated NFT data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at `/api/v1/nfts/36` 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/36`), though no detailed documentation or response schema is available beyond the generic "Premium API Access" label.
Payment is handled via the x402 protocol on the Base network. The endpoint accepts USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) with a maximum amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). There are no API keys, no rate limits, and no signup required — callers simply attach an `X-PAYMENT` header with a valid x402 payment proof. The timeout window for payment settlement is 300 seconds.
The endpoint is live and responds with a proper 402 challenge when called without payment. However, documentation is extremely sparse: there is no OpenAPI spec, no example request/response payloads, and no description of what data the `/nfts/36` resource actually returns. The broader lowpaymentfee.com site lists many endpoints across categories but provides no detailed docs for any of them. Callers should expect a JSON response (`mimeType: application/json`) but the exact schema is unknown.
Capabilities
Use cases
- —Fetching NFT metadata or details for a specific token (ID 36) on demand
- —Agent-driven NFT data retrieval with micropayment settlement on Base
- —Integrating NFT information into workflows without API key management
Fit
Best for
- —Agents or bots that need on-demand NFT data with crypto micropayments
- —Developers exploring x402 protocol integrations on Base
- —Use cases requiring keyless, pay-as-you-go API access
Not for
- —Users needing comprehensive NFT collection analytics or bulk queries
- —Anyone requiring detailed API documentation or guaranteed SLAs
- —Non-crypto users who cannot pay in USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/nfts/36 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, confirming it is operational. However, there is no OpenAPI spec, no documentation of request/response schemas, no example payloads, and the purpose of `/nfts/36` is only inferable from the URL path. The site provides almost no detail beyond a pricing page listing endpoints at $0.02 each.
Warnings
- —No API documentation or OpenAPI spec available
- —No request or response schema documented — actual output is unknown
- —The specific resource /nfts/36 has no description beyond 'Premium API Access'
- —The broader lowpaymentfee.com site appears to be a demo or early-stage platform with many listed endpoints but no substantive docs
Citations
- —The endpoint returns a 402 challenge with x402Version 1, accepting USDC on Base with maxAmountRequired of 20000 base unitshttps://lowpaymentfee.com/api/v1/nfts/36
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/nfts/36
- —All endpoints priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com