x402-gated NFT data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at `/api/v1/nfts/97` 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 endpoint appears to serve NFT-related data (resource ID 97), though the exact response payload is undocumented. Payment is settled on the Base network using USDC (contract `0x8335…2913`) via the x402 "exact" scheme.
The x402 challenge advertises a `maxAmountRequired` of 20,000 base units. Since USDC uses 6 decimals, this converts to $0.02 per request — consistent with the site-wide flat pricing of $0.02/request displayed on the landing page. The platform emphasizes simplicity: no API keys, no rate limits, no commitments, and instant access. All endpoints accept POST requests.
Documentation is extremely sparse. The landing page lists endpoint paths and prices but provides no request/response schemas, parameter descriptions, or usage examples. The `/api`, `/pricing`, and `/README` pages all resolve to a minimal "Connect wallet" prompt with no additional content. Because this specific endpoint (`/nfts/97`) is not listed on the landing page among the advertised API categories, its exact purpose and response format are unclear — it may be a test or demo endpoint. The endpoint is live and returns a valid 402 challenge.
Capabilities
Use cases
- —Fetching NFT metadata or details for a specific token ID via a single paid request
- —Integrating pay-per-call 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 keyless, pay-per-request NFT data access
- —AI agents that can settle x402 micropayments on Base
- —Prototyping Web3 data integrations with minimal setup
Not for
- —Production workloads requiring documented schemas and SLAs
- —Bulk NFT data retrieval where per-request pricing is inefficient
- —Users who need fiat-only payment options
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/nfts/97 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, but there is zero documentation on request parameters, response schema, or what data /nfts/97 actually returns. The endpoint is not even listed among the provider's advertised APIs. Effectively a stub listing.
Warnings
- —No request or response schema documented anywhere
- —The /api/v1/nfts/97 endpoint is not listed on the provider's landing page among advertised APIs — its purpose is unclear
- —All documentation pages (/api, /pricing, /README) return only a 'Connect wallet' prompt with no useful content
- —No examples, no OpenAPI spec, no README content available
Citations
- —The x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/nfts/97
- —USDC contract address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/nfts/97
- —Site-wide pricing is $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The platform lists APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com