x402-gated NFT data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at `/api/v1/nfts/85` is part of the lowpaymentfee.com platform, which offers a broad catalog of x402-protocol pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities. The specific resource at `/nfts/85` is labeled "Premium API Access" and returns JSON content. Its exact response payload is not documented, but the path suggests it serves NFT-related data for item ID 85.
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 USD (USDC uses 6 decimals). There are no API keys, no rate limits, and no subscription commitments — each request is individually settled on-chain. The payment timeout is 300 seconds.
The platform advertises a uniform $0.02 per request pricing across all its endpoints. No OpenAPI schema, detailed documentation, or example responses were found during the crawl; the `/api`, `/pricing`, and `/README` pages all returned only a "Connect wallet" prompt with no additional content. Because of this, the actual data returned by this endpoint remains unclear.
Capabilities
Use cases
- —Fetching NFT data or metadata for item 85 without needing an API key
- —Integrating pay-per-call NFT lookups into an agent workflow
- —Demonstrating x402 micropayment protocol usage on Base
Fit
Best for
- —Developers experimenting with x402 pay-per-call protocols
- —Agents that need keyless, on-demand NFT data access
- —Low-volume or sporadic API consumers who prefer per-request billing
Not for
- —High-volume NFT data ingestion where per-request fees add up
- —Users who need detailed API documentation or guaranteed SLAs
- —Anyone without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/nfts/85 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no documentation, no example request/response, and the actual data returned is unknown. The listing is effectively a stub with only the x402 challenge and a landing page to go on.
Warnings
- —No API documentation, OpenAPI spec, or example responses available
- —The exact data returned by /api/v1/nfts/85 is undocumented and unknown
- —All documentation pages (/api, /pricing, /README) returned only a 'Connect wallet' prompt with no content
- —The endpoint description 'Premium API Access' is generic and does not describe the actual resource
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/nfts/85
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/nfts/85
- —Platform advertises $0.02 per request, no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —Payment timeout is 300 secondshttps://lowpaymentfee.com/api/v1/nfts/85