x402-gated NFT data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at `/api/v1/nfts/59` 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 59), though the exact response payload is not documented. Payment is settled on the Base network using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) at a cost of $0.02 per request (20,000 base units with 6 decimals). The endpoint uses the x402 "exact" payment scheme and accepts POST requests.
The platform advertises a uniform $0.02/request pricing model across all its endpoints, with no API keys, no rate limits, and no minimum commitments required. The x402 challenge was successfully captured with version 1 of the protocol, confirming the endpoint is live. However, there is no OpenAPI schema, no detailed documentation of request parameters or response format, and no example payloads available. The `/api`, `/pricing`, and `/README` pages all resolve to a minimal "Connect wallet" prompt with no additional technical content. The NFT endpoint's specific functionality (whether it returns metadata, ownership info, market data, etc.) cannot be determined from available materials.
Capabilities
Use cases
- —Fetching NFT-related data without requiring API key registration
- —Programmatic access to NFT information with per-request micropayments
- —Agent-driven NFT data retrieval settled on Base L2
Fit
Best for
- —Developers wanting zero-signup NFT data access
- —AI agents that can settle x402 payments on Base
- —Projects needing low-cost per-call NFT queries without subscriptions
Not for
- —Users needing well-documented, schema-validated NFT APIs
- —High-volume consumers who would benefit from bulk pricing or subscriptions
- —Anyone requiring non-crypto payment methods
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/nfts/59 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is no documentation of request parameters, response schema, or what NFT data is actually returned. The /api, /pricing, and /README pages are empty beyond a wallet connect prompt. This is effectively a stub listing.
Warnings
- —No documentation of request body parameters or response format for /api/v1/nfts/59
- —The specific data returned by this NFT endpoint is unknown — it could be metadata, ownership, market data, or something else entirely
- —No OpenAPI schema, no examples, and no README content available
- —The platform's /api, /pricing, and /README pages contain no useful technical information
Citations
- —The endpoint returns a 402 challenge with x402Version 1, exact scheme, on Base network using USDC at maxAmountRequired 20000https://lowpaymentfee.com/api/v1/nfts/59
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/nfts/59
- —Platform advertises $0.02/request pricing, no API keys, no rate limits, instant access, Base networkhttps://lowpaymentfee.com