x402-gated Stripe invoice endpoint on Base, pay-per-call with USDC.
What it does
This endpoint at lowpaymentfee.com provides access to a Stripe invoice resource (invoice ID 194) behind an x402 paywall. It is part of a broader platform that offers a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all settled via USDC on the Base network with no API keys or rate limits required.
The specific endpoint `/api/v1/stripe/invoices/194` accepts POST requests and returns JSON. The x402 challenge confirms it is live, requesting up to 0.02 USDC (20,000 base units of USDC with 6 decimals) per call, paid to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using the USDC contract on Base (`0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The payment scheme is "exact" with a 300-second timeout.
Documentation is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no explanation of what data this invoice endpoint actually returns or what parameters it accepts. The platform's landing page lists many endpoints at $0.02 each but provides no technical details beyond endpoint paths and short labels. Without documentation, the actual functionality and response format of this specific endpoint remain unclear.
Capabilities
Use cases
- —Retrieving Stripe invoice data via a single paid API call
- —Programmatic access to invoice #194 without traditional API key management
- —Agent-driven invoice lookups settled in USDC on Base
Fit
Best for
- —Developers wanting keyless, pay-per-use access to invoice data
- —AI agents that can settle x402 payments on Base
- —Users who prefer crypto micropayments over subscription billing
Not for
- —Anyone needing documented request/response schemas before integrating
- —Bulk invoice management or CRUD operations on Stripe invoices
- —Users without USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/194 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on request parameters, response schema, or what the endpoint actually returns. Docs pages are empty. No OpenAPI spec. This is effectively a stub listing.
Warnings
- —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content
- —No OpenAPI or request/response schema provided; input parameters and output format are unknown
- —The purpose of accessing a specific Stripe invoice (#194) via a public paid endpoint is unclear
- —Cannot verify what data is actually returned without making a paid request
Citations
- —The endpoint returns a 402 challenge requesting up to 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/stripe/invoices/194
- —The platform advertises $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stripe/invoices/194
- —Docs, API, pricing, and README pages render only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs