Pay-per-call audit log access 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 91) 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/91` 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) to the payTo address on Base. No API keys, rate limits, or upfront commitments are required.
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, and no usage examples available from the crawled material. The exact shape of the audit log data returned is unknown. The platform appears to be a demonstration or early-stage x402 marketplace rather than a mature production API.
Capabilities
Use cases
- —Retrieving audit log entries on a per-request payment basis without API key registration
- —Demonstrating x402 payment protocol integration for agent-to-agent commerce
- —Accessing structured audit data programmatically with instant USDC micropayments
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents needing no-signup, pay-per-call data access
- —Projects requiring audit log retrieval without rate limits or subscriptions
Not for
- —Production workloads requiring documented, stable API schemas and SLAs
- —Bulk audit log retrieval where per-request pricing is cost-inefficient
- —Users without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/91 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <signed-x402-payment-header>"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the purpose of 'audit/logs/91' is unexplained. This is effectively a stub listing.
Warnings
- —No OpenAPI spec or request/response schema available
- —Documentation pages (docs, pricing, API, README) all render only 'Connect wallet' with no content
- —The specific data returned by /api/v1/audit/logs/91 is completely undocumented
- —This endpoint path (audit/logs/91) does not appear in the site's own listed API catalog, raising questions about its intended use
- —Platform appears to be early-stage or a demo; production reliability is unknown
Citations
- —The endpoint returns a 402 challenge requesting USDC payment of up to 20,000 base units ($0.02) on Base networkhttps://lowpaymentfee.com/api/v1/audit/logs/91
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/audit/logs/91
- —Documentation, pricing, API, and README pages render only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs