x402-gated NFT data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at `/api/v1/nfts/24` 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 resource appears to serve NFT-related data (inferred from the URL path), 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 platform advertises a uniform $0.02/request pricing model across all endpoints, with no API keys, no rate limits, and instant access. The x402 challenge is live and returns a well-formed 402 response with version 1 of the x402 protocol, using the "exact" payment scheme. The endpoint accepts POST requests. No OpenAPI schema, detailed documentation, or example responses were found in the crawl — the `/api`, `/pricing`, and `/README` pages all returned only a "Connect wallet" prompt with no substantive content.
Because the endpoint path (`/nfts/24`) suggests a specific NFT resource by ID but no documentation describes the response format, consumers should expect a JSON response (per the `mimeType` field in the challenge) but cannot know the exact schema in advance. The broader lowpaymentfee.com platform lists many other endpoints across categories like sentiment analysis, text summarization, geocoding, and crypto gas estimates, all at the same price point.
Capabilities
Use cases
- —Fetching NFT metadata or details by ID via a single paid request
- —Integrating NFT data into agent workflows without managing API keys
- —Programmatic access to NFT information settled with on-chain USDC payments
Fit
Best for
- —Agents or bots that need keyless, pay-per-call NFT data access
- —Developers experimenting with x402 protocol integrations
- —Low-volume consumers who want no subscription commitments
Not for
- —High-volume NFT data pipelines where per-request costs add up quickly
- —Users who need detailed API documentation or guaranteed SLAs
- —Anyone requiring non-USDC or non-Base-network payment options
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/nfts/24 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The x402 challenge is live and well-formed, confirming the endpoint exists and pricing is clear ($0.02 USDC on Base). However, there is no documentation of request parameters, response schema, or what NFT data is actually returned. The /api, /pricing, and /README pages are all empty beyond a wallet-connect prompt. This is effectively a stub listing.
Warnings
- —No documentation found for the /api/v1/nfts/24 endpoint — response schema is unknown
- —The /README, /pricing, and /api pages returned no useful content
- —The endpoint's actual functionality (what NFT data it returns) is inferred solely from the URL path
- —No OpenAPI spec or examples available
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units in USDC on Base networkhttps://lowpaymentfee.com/api/v1/nfts/24
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/nfts/24