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 38) via the x402 payment protocol. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) at a cost of $0.02 per request (20,000 base units with 6 decimals). No API keys or rate limits are required; callers simply attach an X-PAYMENT header with a valid x402 payment proof.
The provider, lowpaymentfee.com, hosts a broader suite of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/Web3 data (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are priced uniformly at $0.02 per request. However, this specific listing covers only the `/api/v1/audit/logs/38` endpoint.
Documentation 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 schema, no request/response examples, and no description of what fields the audit log response contains or what parameters the POST body accepts. The endpoint is confirmed live (returns a proper 402 challenge), but the actual functionality and response format remain unclear.
Capabilities
Use cases
- —Retrieving audit log entries on a per-call payment basis without needing an API key
- —Integrating pay-per-use audit data into agent workflows that support x402
- —Accessing structured log data settled via USDC on the Base L2 network
Fit
Best for
- —Agents or applications that support x402 payment protocol
- —Users who want keyless, pay-as-you-go access to audit data
- —Developers experimenting with crypto-settled micropayment APIs
Not for
- —Users needing bulk audit log exports at scale (no documented batch endpoint)
- —Anyone requiring detailed API documentation or guaranteed SLAs before integration
- —Applications that cannot settle payments in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/38 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge, but there is no OpenAPI schema, no request/response examples, and no meaningful documentation beyond a landing page listing. The purpose of 'audit/logs/38' is unclear — it could be a demo or placeholder. Effectively a stub listing.
Warnings
- —No OpenAPI schema or request/response documentation available
- —Docs, API, pricing, and README pages all render only 'Connect wallet' with no technical content
- —The specific resource '/api/v1/audit/logs/38' is not listed among the provider's advertised APIs — it may be a test or internal endpoint
- —Actual response payload structure is unknown; no examples could be sourced
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/audit/logs/38
- —All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access on the Base networkhttps://lowpaymentfee.com
- —The provider offers APIs across data/analytics, AI/ML, finance/Web3, and infrastructure categorieshttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/audit/logs/38