x402-gated premium API access on Base, pay $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall on the Base network. The provider operates a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML inference, finance & Web3 data, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and no commitments required.
The specific endpoint `/api/v1/benefits/71` is labeled "Premium API Access" in the x402 challenge. It accepts POST requests and returns application/json. Payment is settled in USDC (contract 0x8335…2913) on Base, with a maximum amount of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). The payTo address is 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3, and the payment timeout is 300 seconds.
However, the exact functionality behind this particular `/benefits/71` route is not documented beyond the generic "Premium API Access" label. The provider's landing page lists many other endpoints (analytics, AI, finance, utils) but does not specifically describe what `/api/v1/benefits/71` returns. The docs, pricing, and API pages all render only a "Connect wallet" prompt with no further documentation. Without more detail, it is unclear what data or service this specific endpoint provides.
Capabilities
Use cases
- —Accessing a pay-per-call API without needing API keys or subscriptions
- —Making programmatic requests settled in USDC on Base via x402
- —Agent-driven API consumption with per-request crypto micropayments
Fit
Best for
- —Developers wanting keyless, pay-per-use API access
- —AI agents that can settle x402 payments on Base
- —Users who prefer crypto micropayments over traditional billing
Not for
- —Users who need detailed documentation before integrating
- —Anyone without a Base-compatible USDC wallet
- —High-volume consumers who need bulk pricing or rate guarantees
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/benefits/71 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The x402 challenge is live and well-formed, confirming the endpoint exists and accepts payment. However, there is no documentation, no OpenAPI schema, no example requests or responses, and the specific functionality of /api/v1/benefits/71 is entirely undescribed. The docs/pricing/API pages all render only a wallet-connect prompt with no content.
Warnings
- —The exact functionality of /api/v1/benefits/71 is undocumented — 'Premium API Access' is the only label provided.
- —All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no usable content.
- —No OpenAPI spec, no request/response schema, and no examples are available.
- —The provider lists many endpoints on the landing page but none match this specific /benefits/71 path.
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/benefits/71
- —The provider advertises $0.02 per request, no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/benefits/71
- —Docs, pricing, API, and README pages show only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs