x402basequality 0.35

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/backups/23

What it does

This endpoint at lowpaymentfee.com provides a "Premium API Access" resource at the path `/api/v1/backups/23`. It is part of a broader platform offering dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all gated behind the x402 payment protocol on the Base network.

The specific `/api/v1/backups/23` 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 at 6 decimals equals $0.02 per request. The x402 challenge was successfully captured (HTTP 402), confirming the endpoint is live. Payment is sent to `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` with a timeout of 300 seconds.

The platform advertises no API keys, no rate limits, and instant access. However, documentation beyond the landing page is essentially empty (all sub-pages just show "Connect wallet"), so the exact request body schema, response format, and the nature of the "backup" resource at ID 23 are unknown. There is no OpenAPI spec or detailed docs available.

Capabilities

x402-paymentusdc-basepay-per-requestjson-responsepost-methodbackup-resource

Use cases

  • —Retrieving or creating backup data via a single paid API call
  • —Agent-driven workflows that need on-demand backup access without API key management
  • —Programmatic pay-per-use access to backup resources on Base L2

Fit

Best for

  • —Developers wanting keyless, pay-per-call API access settled in USDC on Base
  • —AI agents that can handle x402 payment challenges natively
  • —Users who prefer micro-payment models over subscription billing

Not for

  • —Users who need detailed documentation or OpenAPI specs before integrating
  • —High-volume batch operations where per-request pricing may add up
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/backups/23 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/backups/23
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI spec, no request/response schema, and the purpose of the 'backups/23' resource is unexplained. All doc pages return only 'Connect wallet' with no useful content.

Warnings

  • —No documentation available — all doc/pricing/API pages show only 'Connect wallet'
  • —No OpenAPI or schema describing request body or response format
  • —The specific purpose of '/api/v1/backups/23' (backup ID 23) is unclear — it may be a demo or placeholder
  • —No information on what data is returned or what POST body is expected

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 16:07:12Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/J9SYyW
x402-gated backup endpoint on Base, pay-per-request with USDC at $0.02/call. — Clawmart · Clawmart