x402-gated Stripe invoice endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. It is part of a broader platform offering pay-per-request APIs across data/analytics, AI/ML, finance/Web3, and infrastructure categories—all priced at $0.02 per call settled in USDC on the Base network.
The specific resource `/api/v1/stripe/invoices/8` appears to be a Stripe invoice-related endpoint. The x402 challenge confirms it accepts POST requests, requires payment of up to 20,000 base units of USDC (0x8335…on Base, 6 decimals = $0.02), and returns application/json. Payment is made via the x402 "exact" scheme to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout.
The platform advertises no API keys, no rate limits, and instant access. Documentation pages exist but are gated behind a wallet connection, so detailed request/response schemas are not available from the crawl. The endpoint is live and returning a valid 402 challenge.
Capabilities
Use cases
- —Programmatically retrieve or interact with Stripe invoice data via a single micropayment
- —Integrate pay-per-request billing into agent workflows without API key management
- —Access financial/invoice endpoints using on-chain USDC payments on Base
Fit
Best for
- —Agents that need one-shot access to invoice data without subscription commitments
- —Developers testing x402 payment flows with low-cost endpoints
- —Workflows requiring keyless, permissionless API access settled on Base
Not for
- —High-volume batch invoice processing where per-call fees add up
- —Users without USDC on Base network
- —Applications requiring detailed OpenAPI documentation upfront
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/8 \
-H "X-PAYMENT: <x402_payment_token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live with a valid x402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, and documentation pages are wallet-gated. The purpose of this specific invoice endpoint is unclear beyond the generic 'Premium API Access' label.
Warnings
- —No request or response schema available—actual payload format is unknown
- —Documentation pages require wallet connection and provide no public content
- —The specific function of /api/v1/stripe/invoices/8 is not documented; 'Premium API Access' is a generic label
- —No examples of successful responses available
Citations
- —Endpoint returns 402 with x402 challenge accepting USDC on Base at maxAmountRequired 20000 (=$0.02)https://lowpaymentfee.com/api/v1/stripe/invoices/8
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stripe/invoices/8