x402-gated premium API endpoint on Base, paying per-call with USDC.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall. The specific path `/api/v1/stripe/charges/101` suggests a Stripe charges-related resource, though the crawled documentation does not describe this particular endpoint in detail. The provider's site advertises a broad catalog of pay-per-request APIs spanning data & analytics, AI/ML inference, finance & Web3, and infrastructure utilities — all gated via x402 on the Base network.
The x402 challenge for this endpoint specifies payment in USDC (contract 0x8335…2913 on Base) with a maxAmountRequired of 20,000 base units. Since USDC uses 6 decimals, this translates to $0.02 per request, consistent with the site's advertised flat $0.02/request pricing across all endpoints. Payment is sent to address 0x1A2B…85F3 using the "exact" scheme. The endpoint accepts POST requests and returns application/json.
The provider emphasizes simplicity: no API keys, no rate limits, no commitments — just pay-per-call via x402. Documentation pages (/docs, /pricing, /api, /README) all returned only a "Connect wallet" prompt with no substantive content, so the actual request/response schema for this specific endpoint is unknown. Without input/output schema documentation, callers will need to experiment or contact the provider to understand what payload to send and what response to expect.
Capabilities
Use cases
- —Programmatic access to Stripe charge data or operations via x402 micropayment
- —Agent-driven payment workflows that need per-call billing without API keys
- —Integrating pay-as-you-go API access into automated pipelines on Base
Fit
Best for
- —Developers wanting keyless, pay-per-request API access
- —AI agents that can settle x402 payments in USDC on Base
- —Projects needing low-friction API billing at $0.02/call
Not for
- —Users who need detailed API documentation before integrating
- —High-volume use cases where per-request pricing may add up vs. subscription models
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/101 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>" \
-d '{}'Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation for this specific endpoint's input/output schema. All doc pages returned only 'Connect wallet' with no content. The purpose of '/api/v1/stripe/charges/101' is unclear beyond the generic 'Premium API Access' label.
Warnings
- —No request or response schema documented for this endpoint
- —All documentation pages (/docs, /pricing, /api, /README) returned only 'Connect wallet' with no useful content
- —The endpoint path '/api/v1/stripe/charges/101' is not listed among the provider's advertised APIs on the homepage
- —Purpose and expected payload of this specific endpoint are unknown
Citations
- —maxAmountRequired is 20000 base units of USDC on Base (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), equating to $0.02https://lowpaymentfee.com/api/v1/stripe/charges/101
- —Provider advertises $0.02/request flat pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The x402 challenge confirms the endpoint is live, accepts POST, and returns application/jsonhttps://lowpaymentfee.com/api/v1/stripe/charges/101