Pay-per-call audit log retrieval on Base via x402, settled in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides access to audit log data (specifically log ID 93) via the x402 payment protocol. 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 priced at $0.02 per request and settled in USDC on the Base network.
The specific resource `/api/v1/audit/logs/93` is labeled "Premium API Access" and accepts POST requests. Payment is handled inline via the x402 protocol: callers attach an `X-PAYMENT` header containing a signed USDC payment of up to 20,000 base units (i.e., $0.02 given USDC's 6 decimals) to the payee address on Base. No API keys, subscriptions, or rate limits are required — each call is independently authorized by its accompanying micropayment.
Documentation on the site is extremely thin. The docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no additional content. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint is confirmed live (returns a proper 402 challenge), but the actual shape of the audit log data returned after payment is unknown from available sources.
Capabilities
Use cases
- —Retrieving audit log entries on a per-request payment basis without needing an API key or subscription
- —Programmatic access to audit data for compliance or monitoring workflows
- —Agent-driven data retrieval where each call is independently settled via on-chain USDC micropayment
Fit
Best for
- —Developers or agents needing one-off audit log lookups without subscription overhead
- —x402-compatible agents that can sign USDC payments on Base
- —Use cases where keyless, permissionless API access is preferred
Not for
- —High-volume audit log streaming where per-request micropayments would be impractical
- —Users who need detailed API documentation or guaranteed SLAs before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/93 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <signed-x402-payment-header>"Endpoint
Quality
The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the actual data returned by this audit-log endpoint is completely undocumented. This is effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available — request and response formats are unknown
- —All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no content
- —The specific endpoint /api/v1/audit/logs/93 is not listed on the site's landing page among its advertised APIs; its purpose and data shape are unclear
- —Cannot verify what data is actually returned after payment
Citations
- —The endpoint returns a 402 challenge requesting up to 20,000 base units of USDC (asset 0x8335…) on Base networkhttps://lowpaymentfee.com/api/v1/audit/logs/93
- —The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC (USD Coin) uses 6 decimals, so 20000 base units = $0.02https://lowpaymentfee.com