Pay-per-call audit log access on Base via x402 — $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to audit log data (specifically log entry 13) via the x402 payment protocol. It is part of a broader platform that offers a variety of API categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request, payable in USDC on the Base network.
The specific resource `/api/v1/audit/logs/13` is described as "Premium API Access" and accepts POST requests. Payment is settled on-chain using USDC (contract 0x8335…2913 on Base) with a maximum amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). No API keys or rate limits are advertised; callers simply attach an x402 payment header to each request. The payment timeout is 300 seconds.
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. There is no OpenAPI schema, no request/response examples, and no detailed description of what the audit log endpoint actually returns. The endpoint is confirmed live (returns a proper 402 challenge), but the lack of documentation makes it difficult to know the exact shape of the response or what parameters the POST body should contain.
Capabilities
Use cases
- —Retrieving audit log entries with per-request micropayments
- —Programmatic access to log data without managing API keys or subscriptions
- —Agent-driven data retrieval settled on Base L2 in USDC
Fit
Best for
- —Developers wanting keyless, pay-per-use audit log access
- —AI agents that can settle x402 payments on Base
- —Users who prefer on-chain micropayments over subscription billing
Not for
- —Users needing detailed API documentation or OpenAPI specs before integrating
- —High-volume consumers who would benefit from bulk pricing or subscriptions
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/13 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no OpenAPI schema, no request/response examples, and no meaningful documentation beyond the landing page listing. The specific purpose of the audit logs endpoint is unexplained, and all doc pages render only a wallet-connect prompt.
Warnings
- —No OpenAPI or schema documentation available for this endpoint
- —All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no content
- —The exact request body format and response structure for /api/v1/audit/logs/13 are unknown
- —The endpoint path suggests a specific log entry (ID 13) but no context is given for what audit logs contain
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/audit/logs/13
- —All APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/audit/logs/13