x402-gated premium API endpoint on Base, pay-per-call with USDC at $0.02/request.
What it does
This endpoint 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 data, and infrastructure utilities. The specific resource at `/api/v1/generate/resource/178` is listed as "Premium API Access" but its exact functionality is not documented beyond that label.
Payment is handled via the x402 protocol on the Base network using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The maximum amount required per call is 20,000 base units of USDC, which at 6 decimals equals $0.02 USD — consistent with the site's advertised flat pricing of $0.02 per request. The endpoint accepts POST requests and returns `application/json`. No API keys or rate limits are advertised; access is gated purely by the x402 payment header.
Documentation is extremely sparse. The docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no description of what data or functionality this specific resource provides. The endpoint is confirmed live (returns a proper 402 challenge), but without knowing what it actually does, agents should treat this as a low-information listing.
Capabilities
Use cases
- —Programmatic access to an undocumented premium resource via x402 micropayment
- —Demonstrating x402 protocol integration for pay-per-request workflows
- —Agent-driven API consumption without API key management
Fit
Best for
- —Developers experimenting with x402 protocol payments on Base
- —Agents that need key-free, pay-as-you-go API access
- —Testing micropayment-gated endpoint integration
Not for
- —Production use cases requiring documented request/response schemas
- —Users who need to understand exactly what data an endpoint returns before paying
- —High-volume use cases where per-request pricing may not be cost-effective
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/178 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live with a valid x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no OpenAPI spec, no request/response schema, and no description of what this specific resource actually does. The docs pages are all empty 'Connect wallet' stubs. This is effectively a stub listing.
Warnings
- —No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'
- —No OpenAPI or request/response schema provided
- —The exact functionality of resource/178 is unknown — 'Premium API Access' is the only description
- —Cannot verify what data or service is returned after payment
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/generate/resource/178
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/generate/resource/178
- —Platform advertises $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —Docs, pricing, API, and README pages render only 'Connect wallet' with no further contenthttps://lowpaymentfee.com/docs