Pay-per-call NFT data endpoint on Base via x402, settling in USDC at $0.02/request.
What it does
This x402-enabled endpoint at lowpaymentfee.com provides premium API access to NFT data (specifically the `/api/v1/nfts/1` resource). It is part of a broader suite of pay-per-call APIs offered by the same provider, spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request.
The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The x402 challenge advertises a `maxAmountRequired` of 20000 base units, which equals $0.02 (USDC uses 6 decimals). No API keys are required; callers authenticate purely via the x402 payment header. The provider advertises no rate limits and instant access.
The specific NFT data returned by this endpoint is not documented in detail — the provider's landing page lists many endpoints but does not include per-endpoint schema documentation or example responses. The `/api/v1/nfts/1` path suggests it returns data for a single NFT identified by ID 1, but the exact fields and structure are unknown. No OpenAPI spec or detailed docs were found during crawling.
Capabilities
Use cases
- —Fetching NFT metadata or details without needing an API key
- —Agent-driven NFT data retrieval with automatic micropayment settlement
- —Integrating NFT information into workflows that support x402 payment protocol
Fit
Best for
- —Developers or agents that already support x402 payment flows
- —Low-volume, on-demand NFT data lookups at $0.02 per call
- —Scenarios where API-key-free, pay-as-you-go access is preferred
Not for
- —High-volume NFT indexing where per-call costs would accumulate quickly
- —Users who need detailed, documented response schemas before integrating
- —Applications requiring non-USDC or non-Base-network payment rails
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/nfts/1 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no response schema, no example responses, and no documentation of what the NFT endpoint actually returns. The listing is essentially a stub with verified liveness and pricing.
Warnings
- —No OpenAPI or schema documentation available — response structure is unknown
- —The /api/v1/nfts/1 path is not listed on the provider's landing page among advertised endpoints, raising questions about whether it is a production endpoint or a demo/test resource
- —No crawled pages beyond the landing page returned meaningful content (wallet connect prompts only)
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/nfts/1
- —All APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/nfts/1