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/12

What it does

This endpoint at lowpaymentfee.com provides a "Premium API Access" resource at the path `/api/v1/backups/12`. 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/12` 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 max amount required is 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. There are no API keys, no rate limits, and no subscription commitments — each call is independently paid.

Documentation beyond the landing page is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no substantive content. The exact behavior and response schema of the `/api/v1/backups/12` endpoint are not documented, so the purpose of this specific backup resource (whether it retrieves a stored backup, triggers a backup operation, etc.) cannot be confirmed from available materials. The endpoint is confirmed live via a valid 402 challenge.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestjson-responsepost-methodbackup-api

Use cases

  • —Triggering or retrieving data backups via a single paid API call
  • —Integrating pay-per-use backup functionality into agent workflows
  • —Programmatic access to backup resources without API key management

Fit

Best for

  • —Agents or developers wanting keyless, pay-per-call API access
  • —Use cases requiring on-chain USDC micropayments on Base
  • —Quick one-off backup operations without subscription overhead

Not for

  • —Users needing detailed documentation or guaranteed SLAs before integrating
  • —High-volume batch operations where per-request pricing adds up quickly
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/backups/12 \
  -H "X-PAYMENT: <x402-payment-proof>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/backups/12
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is confirmed live with a valid x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no documentation for this specific endpoint's request/response schema, no examples, and the docs/pricing/README pages are all empty beyond a wallet-connect prompt. The purpose of '/api/v1/backups/12' is unclear.

Warnings

  • —No documentation available for this specific endpoint — docs, pricing, and README pages all show only 'Connect wallet'
  • —The exact purpose and response schema of /api/v1/backups/12 are unknown
  • —No OpenAPI spec or AI plugin manifest found
  • —The endpoint path suggests a specific resource (backup ID 12) rather than a general-purpose API

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 15:24:07Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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