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 63) 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, settled in USDC on the Base network.
The specific resource `/api/v1/audit/logs/63` is labeled "Premium API Access" in the x402 challenge. The endpoint accepts POST requests and returns JSON. Payment is handled inline: callers attach an X-PAYMENT header containing a signed USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals). The payment is sent to address `0x1A2B…85F3` on Base, with a 300-second timeout window. No API keys or rate limits are advertised; access is gated purely by micropayment.
Documentation 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 spec, no request/response schema beyond the x402 challenge's outputSchema stub, and no explanation of what the audit log data actually contains. The endpoint is confirmed live (returns 402 with a valid x402 challenge), but the lack of documentation makes it difficult to know what payload to send or what response to expect.
Capabilities
Use cases
- —Retrieving audit log entries via micropayment without API key registration
- —Programmatic access to log data from agents that can settle USDC on Base
- —Demonstrating x402 payment-gated API patterns
Fit
Best for
- —Developers or agents already holding USDC on Base who need frictionless API access
- —Exploring x402 protocol integration patterns
- —Low-volume, pay-as-you-go audit data retrieval
Not for
- —Users needing detailed documentation or guaranteed SLAs before integrating
- —High-volume batch audit log retrieval where per-request pricing is impractical
- —Anyone without a Base-compatible wallet or USDC balance
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/63 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <signed-x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but documentation is effectively nonexistent — every doc page shows only 'Connect wallet'. There is no OpenAPI spec, no request/response schema, and no description of what audit log data is returned. The listing is a stub with confirmed liveness but minimal usable information.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README all render only 'Connect wallet'
- —No OpenAPI or request/response schema provided; request body format and response structure are unknown
- —The specific resource '/api/v1/audit/logs/63' is not listed on the homepage's API catalog, raising questions about its purpose
- —The platform lists many endpoint categories but none appear to include 'audit/logs', so this may be a test or internal endpoint
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/audit/logs/63
- —The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/audit/logs/63
- —Documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no substantive contenthttps://lowpaymentfee.com/docs