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 endpoint path `/api/v1/stripe/charges/105` is listed under the provider's broader platform, which offers dozens of endpoints spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all at a flat $0.02 per request.
The x402 challenge confirms the endpoint is live and accepts POST requests. Payment is via the "exact" scheme to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3, with a maxAmountRequired of 20,000 base units of USDC (USD Coin, 6 decimals), which equals $0.02. The asset contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is the canonical USDC contract on Base. No API keys or rate limits are advertised; access is instant upon payment.
Documentation is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what this specific endpoint actually returns. The endpoint path suggests it may relate to Stripe charge creation or lookup, but this is speculative. Without documentation or example payloads, the actual functionality behind this endpoint remains unclear.
Capabilities
Use cases
- —Programmatic per-call API access without API key management
- —Agent-driven workflows that need on-demand paid endpoints
- —Testing x402 payment flows on Base with USDC
Fit
Best for
- —Developers exploring x402 payment protocol integrations
- —AI agents that can autonomously pay for API calls via crypto
- —Users who want no-signup, pay-as-you-go API access
Not for
- —Users needing detailed API documentation or guaranteed SLAs
- —High-volume use cases where per-call crypto settlement overhead matters
- —Anyone who needs to understand the response schema before paying
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/105 \
-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 ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and the actual functionality of this specific endpoint is unknown. The docs/pricing/README pages are all blank beyond a wallet connect prompt.
Warnings
- —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content
- —No OpenAPI or schema describing request parameters or response format
- —The specific functionality of /api/v1/stripe/charges/105 is unclear from available materials
- —No examples of successful responses exist in the crawl bundle
Citations
- —Endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/stripe/charges/105
- —Platform advertises $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stripe/charges/105
- —Docs, API, pricing, and README pages render only 'Connect wallet' with no substantive contenthttps://lowpaymentfee.com/docs