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 entry #49) via the x402 payment protocol. It is part of a broader platform that offers 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/49` is labeled "Premium API Access" and accepts POST requests. Payment is handled inline: callers receive a 402 challenge containing the payment parameters (asset, amount, payTo address) and must include a valid X-PAYMENT header to proceed. The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02. No API keys, rate limits, or upfront commitments are required.
Documentation on the site is extremely sparse — the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint is live and returning a well-formed x402 challenge, but the actual data returned upon successful payment is unknown. The "audit/logs" path suggests it returns structured log or event data, but this cannot be confirmed from available materials.
Capabilities
Use cases
- —Retrieving audit or event log entries on a per-request payment basis
- —Integrating pay-per-call data access into agent workflows without API key management
- —Accessing structured log data settled via USDC on Base
Fit
Best for
- —Agents or applications needing on-demand audit log access without subscriptions
- —Developers experimenting with x402 payment-gated APIs
- —Low-volume consumers who prefer pay-per-use over monthly plans
Not for
- —High-volume audit log ingestion where per-request pricing becomes costly
- —Users who need detailed API documentation or guaranteed SLAs before integrating
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/49
# Returns 402 with x402 challenge. Include X-PAYMENT header with valid payment proof to access the resource.Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but documentation is essentially nonexistent — all doc pages show only 'Connect wallet'. There is no OpenAPI spec, no request/response schema, and no examples. The purpose of 'audit/logs/49' is unclear beyond the generic 'Premium API Access' label. Pricing is clear ($0.02) but the actual data returned is unknown.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README all render only 'Connect wallet'
- —No OpenAPI or schema definition for request or response payloads
- —The specific resource '/api/v1/audit/logs/49' is not listed on the homepage's API catalog, making its purpose unclear
- —Cannot verify what data is actually returned upon successful payment
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/audit/logs/49
- —The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/audit/logs/49