x402-gated premium API access on Base, paid per-call in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall, settling payments in USDC on the Base network. The specific resource path `/api/v1/stripe/charges/108` suggests a Stripe-related charges endpoint, though the exact functionality behind this particular route is not documented beyond the generic "Premium API Access" label.
The provider operates a broader platform offering multiple API categories including Data & Analytics (metrics, reports, data export, insights), AI & Machine Learning (sentiment analysis, text summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are advertised at $0.02 per request with no API keys, no rate limits, and instant access via x402 payment on the Base network.
The x402 challenge for this specific endpoint advertises a maxAmountRequired of 20000 base units of USDC (contract 0x8335…2913 on Base, 6 decimals), which equals $0.02 per call. Payment is made via the x402 "exact" scheme to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout. The endpoint accepts POST requests. Documentation beyond the landing page is essentially empty (all sub-pages just show "Connect wallet"), so the actual request/response schema for this specific endpoint is unknown.
Capabilities
Use cases
- —Programmatic access to a Stripe charges endpoint without traditional API key management
- —Agent-driven per-call payment for premium data or services
- —Integrating x402 payment flows into automated pipelines
Fit
Best for
- —Developers experimenting with x402 payment protocols
- —Agents that need keyless, pay-per-use API access on Base
- —Low-volume callers who prefer per-request billing over subscriptions
Not for
- —Users needing detailed API documentation or OpenAPI specs before integrating
- —High-volume use cases where $0.02/request adds up significantly
- —Anyone requiring non-crypto payment methods
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/108 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing. However, there is no documentation, no OpenAPI schema, no request/response examples, and the actual functionality behind '/api/v1/stripe/charges/108' is completely opaque. All doc pages return only 'Connect wallet' with no content.
Warnings
- —No documentation available — all doc/pricing/API pages are empty beyond 'Connect wallet'
- —No request or response schema provided; actual endpoint behavior is unknown
- —The specific purpose of '/api/v1/stripe/charges/108' is unclear — 'Premium API Access' is a generic label
- —No OpenAPI spec or examples available to verify what data this endpoint returns
Citations
- —All endpoints priced at $0.02 per request with no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —x402 challenge returns maxAmountRequired of 20000 base units USDC on Base with 300-second timeouthttps://lowpaymentfee.com/api/v1/stripe/charges/108
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stripe/charges/108
- —Platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com