Pay-per-call audit log access on Base via x402 — $0.02/request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to audit log data (specifically log entry 53) through the x402 payment protocol. It 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 endpoint is part of a broader platform (lowpaymentfee.com) that offers a variety of pay-per-call APIs across categories including data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per request. The specific endpoint `/api/v1/audit/logs/53` appears to be an audit-log retrieval resource, though the platform's landing page does not list it among the featured APIs. Documentation beyond the landing page is extremely thin — the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no further content.
Because there is no OpenAPI schema, no example request/response payloads, and no documentation describing the audit log data model, the actual shape and content of the response is unknown. The endpoint is confirmed live (returns a well-formed 402 challenge), but prospective callers should be aware that they are purchasing access to an undocumented resource.
Capabilities
Use cases
- —Retrieving audit log entries on a per-call payment basis without needing an API key
- —Programmatic access to log data settled via USDC on Base
- —Agent-driven audit trail lookups with instant crypto micropayments
Fit
Best for
- —Developers who want keyless, pay-as-you-go audit log access
- —AI agents that can settle x402 payments on Base
- —Users who prefer crypto micropayments over subscription billing
Not for
- —Anyone needing detailed API documentation or guaranteed SLAs before purchasing
- —Bulk audit log exports (each call costs $0.02 and targets a single log entry)
- —Users without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/53 \
-H "X-PAYMENT: <x402-payment-proof>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no OpenAPI schema, no documentation, no example request/response, and the audit-log resource is not listed on the provider's own landing page. Effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available for this endpoint
- —The /docs, /pricing, /api, and /README pages are empty (only show 'Connect wallet')
- —The specific resource /api/v1/audit/logs/53 is not listed among the provider's advertised APIs
- —Response data model is completely unknown — no example payloads exist
Citations
- —The endpoint returns a 402 challenge requesting 20,000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/audit/logs/53
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/audit/logs/53
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —Documentation pages (/docs, /pricing, /api, /README) render only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs