x402basequality 0.35

x402-gated backup endpoint on Base, pay-per-call with USDC at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/backups/44

What it does

This endpoint at lowpaymentfee.com provides a "Premium API Access" resource at the path `/api/v1/backups/44`. It is part of a broader platform offering dozens of pay-per-request API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all gated via the x402 payment protocol on the Base network.

The specific `/api/v1/backups/44` endpoint accepts POST requests and returns `application/json`. Payment is settled in USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base) with a maximum amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). The platform advertises a flat $0.02 per request across all endpoints, with no API keys, no rate limits, and no minimum commitments required.

The exact functionality of the `/api/v1/backups/44` resource is not documented beyond the label "Premium API Access." The crawled docs, pricing, and README pages all returned only a "Connect wallet" prompt with no additional content. Without further documentation it is unclear what data or service this particular backup endpoint provides. The platform itself appears live — the root page returns HTTP 200 and the x402 challenge is well-formed — but the lack of endpoint-specific documentation is a significant gap.

Capabilities

x402-paymentusdc-basepay-per-requestjson-responsepost-methodno-api-key

Use cases

  • —Accessing a backup resource via a single micropayment without needing an API key or subscription
  • —Programmatic pay-per-request data retrieval settled on Base L2 in USDC
  • —Agent-driven workflows that need on-demand access to gated resources with instant crypto payment

Fit

Best for

  • —Developers or agents who want keyless, pay-as-you-go API access
  • —Use cases requiring low-cost ($0.02) per-call payments on Base
  • —Crypto-native applications that can sign x402 payment headers

Not for

  • —Users who need detailed documentation or guaranteed SLAs before integrating
  • —Anyone without a Base-compatible USDC wallet or x402 client

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/backups/44 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/backups/44
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The x402 challenge is live and well-formed, confirming the endpoint exists and its pricing ($0.02 USDC on Base). However, there is no documentation explaining what /api/v1/backups/44 actually does, no request/response schema, and no examples. The docs, pricing, and README pages are all blank beyond a wallet-connect prompt.

Warnings

  • —The specific functionality of /api/v1/backups/44 is undocumented — 'Premium API Access' is the only label provided.
  • —All documentation pages (docs, pricing, README, api) returned only a 'Connect wallet' prompt with no substantive content.
  • —No request body schema or response schema is available; integration requires trial-and-error or contacting the provider.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 16:09:34Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/nurbWt
x402-gated backup endpoint on Base, pay-per-call with USDC at $0.02/request. — Clawmart · Clawmart