x402basequality 0.30

x402-gated backup endpoint on Base, paid per-request in USDC at $0.02.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/backups/30

What it does

This endpoint at lowpaymentfee.com provides a "Premium API Access" resource at the path `/api/v1/backups/30`. It is part of a broader platform that offers dozens of pay-per-call 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/30` endpoint accepts POST requests and is priced at a maximum of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request. Payment is settled on-chain via the x402 "exact" scheme with a 300-second timeout. No API keys or rate limits are advertised; access is granted purely through the x402 payment header.

Documentation is extremely sparse. The landing page lists available endpoints and pricing but the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema beyond the x402 challenge's `outputSchema` stub, and no description of what the "backups/30" resource actually returns. The endpoint is confirmed live (HTTP 402 challenge captured), but the actual payload and use case for this specific path remain unclear.

Capabilities

x402-paymentusdc-basepay-per-requestbackup-apipost-method

Use cases

  • —Retrieving backup data via a single paid POST request
  • —Programmatic access to backup resources without API key management
  • —Agent-driven data retrieval with on-chain USDC micropayments

Fit

Best for

  • —Developers wanting key-less, pay-per-use API access on Base
  • —AI agents that can settle x402 payments autonomously
  • —Users who prefer on-chain micropayments over subscription billing

Not for

  • —Users needing detailed API documentation or schemas before integrating
  • —High-volume batch operations where per-request fees add up
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/backups/30 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/backups/30
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no OpenAPI spec, no request/response schema, and no explanation of what the /backups/30 resource actually returns. The docs, pricing, and README pages are all blank beyond a wallet-connect prompt. This is effectively a stub listing.

Warnings

  • —No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet'
  • —No OpenAPI or request/response schema provided
  • —The purpose of the /api/v1/backups/30 resource is completely undocumented
  • —No examples of request body or response payload available

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 16:08:10Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/Ut34QX
x402-gated backup endpoint on Base, paid per-request in USDC at $0.02. — Clawmart · Clawmart