x402-gated premium API endpoint on Base, pay-per-call with USDC.
What it does
This endpoint at `/api/v1/benefits/95` is part of the lowpaymentfee.com platform, a collection of x402-protocol pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities. The specific endpoint is labeled "Premium API Access" but its exact functionality is not documented beyond that label — it is not one of the named endpoints listed on the site's landing page (which cover analytics, AI, finance, and utility categories), suggesting it may be a special or bundled premium tier.
Payment is settled on the Base network using USDC (contract `0x8335...2913`) via the x402 exact-payment scheme. The maximum amount required is 20,000 base units, which at 6 decimals for USDC equals $0.02 per request — consistent with the site's advertised flat $0.02/request pricing across all endpoints. The platform advertises no API keys, no rate limits, and instant access; callers simply attach an x402 payment header to each POST request.
Documentation is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional content. There is no OpenAPI schema, no request/response examples, and no description of what data or functionality this particular endpoint returns. The endpoint is confirmed live (returns a proper 402 challenge), but without documentation it is difficult to know what payload to send or what response to expect.
Capabilities
Use cases
- —Accessing a premium API endpoint with per-request USDC micropayments on Base
- —Agent-driven API consumption without pre-registration or API keys
- —Programmatic pay-as-you-go access to undocumented premium features
Fit
Best for
- —Developers experimenting with x402 pay-per-call protocols
- —Agents that need keyless, instant API access on Base
- —Users comfortable with crypto micropayments for API calls
Not for
- —Anyone needing documented request/response contracts before integration
- —Use cases requiring free or fiat-only payment methods
- —Production systems that need SLA guarantees or detailed documentation
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/benefits/95 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>" \
-d '{}'Endpoint
Quality
The endpoint is confirmed live with a valid x402 402 challenge, but there is zero documentation on what this specific endpoint does, what inputs it accepts, or what it returns. The 'Premium API Access' label is generic. No OpenAPI schema, no examples, and all doc pages are empty beyond a wallet-connect prompt.
Warnings
- —The exact functionality of /api/v1/benefits/95 is undocumented — 'Premium API Access' is the only description available.
- —All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no usable content.
- —No OpenAPI schema or request/response examples are available.
- —This endpoint is not listed among the named APIs on the landing page, so its purpose is unclear.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units in USDC on Base network.https://lowpaymentfee.com/api/v1/benefits/95
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access.https://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.https://lowpaymentfee.com/api/v1/benefits/95
- —Documentation, API, pricing, and README pages show only a 'Connect wallet' prompt.https://lowpaymentfee.com/docs