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 ID 11) via the x402 payment protocol. It is part of a broader platform offering dozens of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all settled on the Base network using USDC.
The specific resource `/api/v1/audit/logs/11` 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 on Base. The maximum amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per request. The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` with a 300-second timeout window.
The platform advertises a simple pricing model of $0.02 per request across all endpoints, with no API keys, no rate limits, no minimums, and instant access. Documentation pages exist at `/docs`, `/pricing`, and `/api` but currently render only a "Connect wallet" prompt with no substantive content, so the actual schema of request bodies and response payloads for this audit-logs endpoint is unknown. The endpoint is confirmed live (returns a proper 402 challenge), but the lack of documentation about what data is returned or what parameters are accepted limits practical usability without experimentation.
Capabilities
Use cases
- —Retrieving audit log entries on a per-request payment basis without needing an API key or subscription
- —Integrating pay-per-call audit data into agent workflows that settle payments in USDC on Base
- —Accessing structured log data programmatically with crypto-native micropayments
Fit
Best for
- —Developers or agents who want keyless, pay-per-use API access settled in USDC on Base
- —Scenarios requiring audit log retrieval without subscription commitments
- —x402-compatible agent toolchains that can sign on-chain payments automatically
Not for
- —Users who need detailed API documentation or response schemas before integrating
- —High-volume consumers who would prefer bulk pricing or subscription plans
- —Anyone without a Base-network USDC wallet or x402-compatible client
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/11 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-signed-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 documentation of request parameters, response schema, or what 'audit/logs/11' actually returns. The docs, pricing, and API pages all render only 'Connect wallet' with no useful content.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content
- —Request body schema and response format for /api/v1/audit/logs/11 are completely unknown
- —The endpoint path references a specific log ID (11); it is unclear whether other IDs are available or what the data represents
- —The 'Premium API Access' label is generic and does not describe the actual functionality
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/audit/logs/11
- —Platform pricing is $0.02 per request with no API keys, no rate limits, no minimumshttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/audit/logs/11
- —Documentation pages render only 'Connect wallet' with no substantive contenthttps://lowpaymentfee.com/docs