x402-gated backup endpoint on Base, payable in USDC per request.
What it does
This endpoint at lowpaymentfee.com provides access to a resource at `/api/v1/backups/2026-05`, described by the provider as "Premium API Access." It is part of a broader platform that offers dozens of x402-payable API endpoints spanning data analytics, AI/ML inference, finance, crypto, infrastructure utilities, and more — all settled on the Base network using USDC.
The specific endpoint probed (`/api/v1/backups/2026-05`) returned a valid x402 challenge with a `maxAmountRequired` of 20,000 base units of USDC (6 decimals), which equals $0.02 per request. This is consistent with the platform's uniform pricing of $0.02/request advertised on its landing page. Payment is made via the x402 "exact" scheme to a specified wallet address on Base. No API keys are required; access is granted per-call upon valid payment.
The nature of the data returned by this particular backup endpoint is unclear — the path suggests it may serve a backup or snapshot resource dated 2026-05, but no documentation, schema, or example response is available. The crawled docs, pricing, API, and README pages all rendered only a "Connect wallet" prompt with no additional content. The platform advertises no rate limits and instant access, but without concrete documentation or response examples, the actual payload and utility of this specific endpoint remain unverified.
Capabilities
Use cases
- —Retrieving backup or snapshot data for a specific time period (2026-05)
- —Programmatic access to premium resources without API key management
- —Agent-driven data retrieval with per-call crypto micropayments
Fit
Best for
- —Agents or services that need keyless, pay-per-call access to backup data
- —Developers experimenting with x402 payment flows on Base
- —Workflows requiring on-demand data retrieval settled in USDC
Not for
- —Users who need detailed documentation or response schemas before integrating
- —High-volume consumers who need bulk pricing or subscription plans
- —Anyone requiring non-crypto payment methods
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/backups/2026-05 \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"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 response schema, no example payloads, and the crawled pages beyond the landing page are empty. The purpose of the specific backup endpoint is unclear.
Warnings
- —No documentation available — docs, pricing, API, and README pages all render only 'Connect wallet' with no content.
- —The response schema and payload format for /api/v1/backups/2026-05 are completely unknown.
- —The path '2026-05' suggests a future date, which is unusual for a backup resource — purpose is unclear.
- —No OpenAPI spec, no ai-plugin manifest, and no agents.txt discovered.
Citations
- —The platform advertises uniform $0.02/request pricing with no API keys, no rate limits, and instant access on the Base network.https://lowpaymentfee.com
- —The x402 challenge specifies maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network.https://lowpaymentfee.com/api/v1/backups/2026-05
- —Docs, pricing, API, and README pages render only a 'Connect wallet' prompt with no additional content.https://lowpaymentfee.com/docs