x402-gated Stripe invoice endpoint on Base, paid per-call in USDC.
What it does
This endpoint at lowpaymentfee.com exposes a specific Stripe invoice resource (`/api/v1/stripe/invoices/155`) behind an x402 paywall. The provider operates a broader platform offering dozens of pay-per-request API endpoints across data analytics, AI/ML inference, finance, and utility categories, all settled on the Base network using USDC via the x402 protocol.
The specific endpoint listed here is described as "Premium API Access" and costs up to $0.02 per request (maxAmountRequired of 20,000 base units of USDC with 6 decimals). Payment is made in USDC on Base to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`. The endpoint accepts POST requests and returns `application/json`. The x402 challenge was successfully captured, confirming the endpoint is live.
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 the Stripe invoice endpoint actually returns or what input it expects beyond a POST body. The provider's landing page lists the platform's general pricing model ($0.02/request, no API keys, no rate limits, instant access) but provides no detail about this specific invoice resource.
Capabilities
Use cases
- —Retrieving Stripe invoice data via a single paid API call
- —Programmatic access to invoice #155 without traditional API key management
- —Agent-driven payment-gated data retrieval on Base
Fit
Best for
- —Developers experimenting with x402 payment-gated APIs
- —Agents that can settle USDC payments on Base automatically
- —Users who want keyless, pay-per-use API access
Not for
- —Production use requiring documented request/response schemas
- —Bulk invoice retrieval or batch operations
- —Users who need fiat-only payment rails
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/155 \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The x402 challenge is live and well-formed, confirming the endpoint exists and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and no explanation of what the endpoint actually returns. The docs pages are empty beyond a wallet-connect prompt. This is effectively a stub listing.
Warnings
- —No OpenAPI or request/response schema available — input format for POST body is unknown
- —All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content
- —The specific purpose of /api/v1/stripe/invoices/155 is unclear — 'Premium API Access' is generic
- —No examples of successful responses exist in the crawl material
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/stripe/invoices/155
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stripe/invoices/155
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The provider offers endpoints across data analytics, AI/ML, finance, and infrastructure categorieshttps://lowpaymentfee.com