x402-gated NFT data endpoint on Base, pay-per-request with USDC at $0.02/call.
What it does
This endpoint at `/api/v1/nfts/78` is part of the lowpaymentfee.com platform, which offers a broad suite of x402-protocol pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities. The specific endpoint appears to serve NFT-related data (resource ID 78), though the exact response payload is undocumented. Payment is settled on the Base network using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) via the x402 "exact" scheme.
The x402 challenge confirms the endpoint is live and requests a maximum of 20,000 base units of USDC (6 decimals), which equals $0.02 per request. The platform advertises uniform $0.02 pricing across all its endpoints, with no API keys, no rate limits, and no minimum commitments required. The endpoint accepts HTTP POST requests and returns `application/json`.
Documentation is extremely sparse. The landing page lists many endpoint paths but provides no request/response schemas, parameter descriptions, or example payloads for any of them—including this NFT endpoint. The `/api`, `/pricing`, and `/README` pages all resolve to a minimal "Connect wallet" prompt with no additional content. Without documentation on what data this endpoint returns or what POST body it expects, consumers will need to experiment or contact the provider directly.
Capabilities
Use cases
- —Fetching NFT metadata or details for a specific token (ID 78)
- —Integrating pay-per-request NFT data into agent workflows without API key management
- —Programmatic access to NFT information settled via on-chain USDC micropayments
Fit
Best for
- —Developers wanting keyless, pay-as-you-go NFT data access
- —AI agents that can settle x402 payments on Base
- —Prototyping Web3 applications that need low-friction NFT lookups
Not for
- —Bulk NFT data ingestion requiring high throughput and predictable flat-rate pricing
- —Users who need detailed API documentation and guaranteed SLAs before integrating
- —Non-crypto users who cannot settle USDC payments on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/nfts/78 \
-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 zero documentation on request parameters, response schema, or what data this NFT endpoint actually returns. No OpenAPI spec, no examples, and ancillary pages are empty. This is effectively a stub listing.
Warnings
- —No request or response schema documented for this endpoint
- —No description of what NFT data is returned or what POST body is expected
- —All documentation pages (/api, /pricing, /README) return only a 'Connect wallet' prompt with no content
- —The endpoint path suggests a single NFT resource (ID 78); unclear if this is a demo or production resource
Citations
- —The endpoint returns a 402 challenge requesting 20,000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/nfts/78
- —USDC contract address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/nfts/78
- —Platform advertises $0.02/request uniform pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com