Pay-per-call audit log access on Base via x402 — $0.02/request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to audit log data (specifically log entry #51) via the x402 payment protocol. The endpoint is live and returns a 402 challenge requiring payment in USDC on the Base network. The price per request is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. Payment is made via the x402 "exact" scheme to the specified wallet address, with no API keys or rate limits required.
The endpoint is part of a broader platform (lowpaymentfee.com) that offers multiple API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities — all priced at $0.02 per request. However, this specific listing covers only the `/api/v1/audit/logs/51` resource. The endpoint accepts POST requests and returns JSON. Documentation on the site is extremely sparse — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no substantive content.
Because there is no OpenAPI schema, no request/response examples, and no documentation beyond the landing page listing, the actual shape of the audit log data returned is unknown. The endpoint is confirmed live via the captured 402 challenge, and the payment parameters (asset address 0x8335…2913 corresponds to USDC on Base) are clear and well-formed.
Capabilities
Use cases
- —Retrieving audit log entries on a per-call payment basis without needing an API key
- —Programmatic access to audit data settled in USDC on Base L2
- —Agent-driven log retrieval where payment is handled inline via x402 protocol
Fit
Best for
- —Developers wanting zero-signup, pay-per-use audit log access
- —AI agents that can settle x402 payments autonomously on Base
- —Users who prefer crypto micropayments over subscription billing
Not for
- —Bulk audit log retrieval where per-call pricing would be expensive at scale
- —Users who need detailed API documentation or response schema guarantees before integrating
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/51 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge with clear pricing and payment parameters. However, there is no OpenAPI schema, no request/response examples, and no meaningful documentation — the docs pages are empty. The purpose of 'audit logs' and the data returned are entirely unknown, making this 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 resource '/api/v1/audit/logs/51' is not listed on the site's landing page among advertised APIs — it may be a demo or test endpoint
- —No information on what audit log data is actually returned
Citations
- —Endpoint returns 402 with x402 challenge requiring USDC payment on Base networkhttps://lowpaymentfee.com/api/v1/audit/logs/51
- —Price is $0.02 per request (20000 base units USDC, 6 decimals)https://lowpaymentfee.com
- —Platform advertises no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/audit/logs/51