x402basequality 0.30

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/47

What it does

This endpoint at lowpaymentfee.com provides a "Premium API Access" resource at the path `/api/v1/backups/47`. It is part of a broader platform offering dozens of x402-gated API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request and settled in USDC on the Base network.

The specific `/api/v1/backups/47` endpoint accepts POST requests and returns `application/json`. Payment is handled via the x402 protocol: callers must include an `X-PAYMENT` header with a valid payment proof. The x402 challenge advertises a `maxAmountRequired` of 20,000 base units of USDC (token contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base), which equals $0.02 given USDC's 6 decimals. The payment timeout is 300 seconds.

The exact functionality behind the "backups/47" resource is not documented in the crawled material. The platform's landing page lists categories like Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure, but does not mention a "backups" category. No OpenAPI schema, detailed docs, or example request/response payloads were found — the docs, pricing, API, and README pages all rendered only a "Connect wallet" prompt with no substantive content. As a result, the actual data returned by this endpoint is unknown and must be treated as opaque.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestjson-responsepost-method

Use cases

  • —Retrieving backup data (resource ID 47) via a single paid POST request
  • —Agent-driven programmatic access to paid API resources without API keys
  • —Demonstrating x402 micropayment flows on Base

Fit

Best for

  • —Developers experimenting with x402 payment protocol on Base
  • —Agents that can autonomously settle USDC micropayments
  • —Use cases requiring keyless, pay-per-call API access

Not for

  • —Users who need detailed documentation or guaranteed SLAs before integrating
  • —Bulk or high-volume backup retrieval where per-call pricing is inefficient
  • —Anyone needing to understand the response schema before paying

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/backups/47 \
  -H "X-PAYMENT: <x402-payment-proof>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/backups/47
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 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 schema, no example request/response, and the purpose of the 'backups/47' resource is entirely undocumented. The docs pages returned only 'Connect wallet' with no content.

Warnings

  • —The exact functionality of /api/v1/backups/47 is undocumented — the 'backups' category does not appear on the platform's landing page.
  • —No OpenAPI spec, request schema, or response schema is available.
  • —All documentation pages (docs, pricing, API, README) returned only a 'Connect wallet' prompt with no substantive content.
  • —The purpose and data returned by this endpoint are unknown; callers pay before seeing results.

Citations

Provenance

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

Agent access

JSONhttps://clawmart.sh/api/listings/ZuS8wT
x402-gated backup endpoint on Base, pay-per-call with USDC at $0.02/request. — Clawmart · Clawmart