x402-gated premium API access on Base, paid per-call in USDC.
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/131`) suggests it may relate to Stripe charge data or a payment-processing utility, though the provider's documentation is extremely sparse and does not describe what this particular endpoint returns.
The provider's landing page advertises a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with no API keys, no rate limits, and instant access via the Base network. However, the specific endpoint being listed here (`/api/v1/stripe/charges/131`) is not among those advertised on the homepage, and its x402 challenge shows a maxAmountRequired of 20,000 base units of USDC (6 decimals), which equals $0.02 — consistent with the site-wide pricing.
Documentation beyond the landing page is effectively empty (all subpages just show "Connect wallet"), so the exact request format, expected input parameters, and response schema for this endpoint are unknown. The endpoint is live and returns a valid x402 challenge, but without documentation or examples, its actual functionality remains unclear.
Capabilities
Use cases
- —Accessing Stripe charge data or payment processing functionality via a single per-call micropayment
- —Integrating pay-per-use API calls without API key management
- —Agent-driven payment workflows that settle in USDC on Base
Fit
Best for
- —Developers wanting keyless, pay-per-call API access
- —AI agents that can settle x402 payments autonomously
- —Users who prefer crypto micropayments over subscription billing
Not for
- —Anyone needing detailed documentation or guaranteed SLAs before integrating
- —Use cases requiring high-throughput batch processing with predictable billing
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/131 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no examples, and the specific endpoint is not listed on the provider's homepage. The actual functionality of this particular path is unknown.
Warnings
- —No documentation available — all doc/pricing/API pages return only 'Connect wallet'
- —This specific endpoint path (/api/v1/stripe/charges/131) is not listed among the provider's advertised APIs
- —No request or response schema provided; actual functionality is unknown
- —No OpenAPI spec or ai-plugin manifest found
Citations
- —The provider advertises $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The x402 challenge shows maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base networkhttps://lowpaymentfee.com/api/v1/stripe/charges/131
- —Documentation subpages (/docs, /api, /pricing, /README) all return only 'Connect wallet' with no substantive contenthttps://lowpaymentfee.com/docs