Query NFT ownership data via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com returns NFT ownership information for NFT ID 65. It is part of a broader platform offering pay-per-request APIs across data analytics, AI/ML inference, finance/Web3, and infrastructure categories — all settled via the x402 protocol on the Base network using USDC.
The specific endpoint `/api/v1/nfts/65/owner` accepts POST requests and returns JSON. Payment is handled inline via the X-PAYMENT header using the x402 exact-amount scheme. The maximum amount required is 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 USD (USDC uses 6 decimals). No API keys, rate limits, or upfront commitments are needed — each call is individually paid at the time of request.
The platform advertises a uniform $0.02/request pricing model across all its endpoints. While this specific endpoint focuses on NFT owner lookups, the broader site lists endpoints for sentiment analysis, text summarization, embeddings, price feeds, gas estimates, geocoding, and more. Documentation beyond the landing page is sparse — the /api, /pricing, and /README pages all resolve to a minimal "Connect wallet" prompt with no additional technical detail. No OpenAPI schema or detailed request/response documentation was found.
Capabilities
Use cases
- —Querying the current owner of a specific NFT (ID 65) programmatically
- —Integrating NFT ownership checks into agent workflows without API key management
- —Paying per-request for on-demand NFT data using USDC on Base
Fit
Best for
- —Agents or bots that need one-off NFT ownership lookups without subscription overhead
- —Developers prototyping x402-based payment flows
- —Low-volume NFT data queries where pay-per-call is more economical than a subscription
Not for
- —Bulk or high-throughput NFT indexing across many token IDs (only one NFT ID is exposed at this path)
- —Users who need detailed NFT metadata beyond ownership
- —Anyone without access to USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/nfts/65/owner \
-H "X-PAYMENT: <x402-payment-header>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and no documentation beyond the landing page. The endpoint path is hardcoded to a single NFT ID (65), and the actual response format is unknown. This is effectively a stub listing.
Warnings
- —No OpenAPI or detailed documentation found — /api, /pricing, and /README all return only a 'Connect wallet' prompt.
- —Request body schema and response schema are completely undocumented; example_request_json and example_response_json are null.
- —The endpoint path is specific to NFT ID 65; it is unclear whether other NFT IDs are queryable at similar paths.
- —The platform lists many endpoint categories (AI, finance, infrastructure) but this listing covers only the NFT owner endpoint.
Citations
- —The endpoint returns HTTP 402 with x402 challenge requiring 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/nfts/65/owner
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/nfts/65/owner
- —Platform advertises $0.02/request uniform pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The site lists endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com