Pay-per-call audit log retrieval 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 35) via an x402 payment-gated API. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with an exact-scheme challenge requiring 20,000 base units (i.e., $0.02 per request, since USDC uses 6 decimals).
The broader lowpaymentfee.com platform advertises a suite of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with no API keys, no rate limits, and no minimum commitments. However, this specific listing covers only the `/api/v1/audit/logs/35` endpoint.
Documentation on the site is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available from the crawl. The endpoint is confirmed live (returns a proper 402 x402 challenge), but the actual response payload structure after payment is unknown.
Capabilities
Use cases
- —Retrieving audit log entries via a micropayment-gated API call
- —Programmatic access to log data without API key registration
- —Agent-driven log fetching with on-chain USDC settlement
Fit
Best for
- —Developers wanting keyless, pay-per-call audit log access
- —AI agents that can settle x402 payments on Base
- —Users who prefer crypto micropayments over subscription billing
Not for
- —Bulk log retrieval requiring thousands of records at once (no documented batch endpoint)
- —Users who need detailed API documentation or response schema guarantees before integrating
- —Non-crypto users who cannot settle USDC payments on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/35 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live with a valid 402 x402 challenge, but there is no OpenAPI spec, no request/response schema, and no documentation beyond a wallet-connect prompt. The actual data returned after payment is completely unknown, making this effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content
- —The specific purpose of audit log ID 35 is undocumented; it is unclear whether other log IDs are available or what data is returned
- —No examples of successful responses exist in the crawl material
Citations
- —Endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/audit/logs/35
- —All endpoints priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/audit/logs/35