x402-gated backup/data endpoint on Base, pay-per-call with USDC at $0.02 per request.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific resource `/api/v1/backups/41` is one of many endpoints offered by the provider, which spans categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints on the platform share a uniform pricing model of $0.02 per request, settled in USDC on the Base network.
The x402 challenge confirms the endpoint is live and accepts POST requests. Payment is made via the x402 "exact" scheme, requiring up to 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. The payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a maximum timeout of 300 seconds. No API keys or rate limits are advertised; access is instant upon payment.
The specific functionality of the `/api/v1/backups/41` resource is unclear — the name suggests a backup or data retrieval endpoint, but no documentation describes its request or response schema. The provider's docs, pricing, and API pages all render only a "Connect wallet" prompt with no further detail. Without an OpenAPI spec, examples, or detailed documentation, the exact input/output contract for this endpoint remains unknown.
Capabilities
Use cases
- —Retrieving backup data via a single paid API call
- —Agent-driven data access without pre-registration or API keys
- —Programmatic pay-per-use data retrieval settled on Base L2
Fit
Best for
- —Agents needing keyless, pay-per-call data access
- —Developers who want to avoid subscription commitments
- —Use cases requiring USDC micropayments on Base
Not for
- —Users who need detailed API documentation before integrating
- —High-volume batch operations where per-call pricing is inefficient
- —Anyone requiring non-crypto payment methods
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/backups/41 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the specific purpose of /api/v1/backups/41 is undocumented. This is effectively a stub listing.
Warnings
- —No documentation available — docs, pricing, and API pages all render only 'Connect wallet' with no content.
- —The specific functionality of /api/v1/backups/41 is unknown; 'Premium API Access' is a generic label applied to all endpoints.
- —No OpenAPI spec or request/response schema is provided.
- —No examples of successful responses are available.
Citations
- —All endpoints on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network.https://lowpaymentfee.com
- —The x402 challenge requires up to 20,000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base, paid to 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout.https://lowpaymentfee.com/api/v1/backups/41
- —The provider offers endpoints across data & analytics, AI & ML, finance & Web3, and infrastructure categories.https://lowpaymentfee.com