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 entry 50) 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-payment scheme. The advertised cost is $0.02 per request (20,000 base units of USDC with 6 decimals).
The provider operates a broader platform offering multiple pay-per-call API categories including data & analytics, AI & machine learning (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share the same $0.02/request pricing model with no API keys, no rate limits, and no minimum commitments required.
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 spec, no request/response schema documentation, and no example payloads available. The specific audit/logs endpoint is not listed on the homepage's API catalog, making its exact functionality unclear beyond the generic "Premium API Access" label. The endpoint is live and returning a valid x402 402 challenge.
Capabilities
Use cases
- —Retrieving audit log entries on a per-call payment basis
- —Agent-driven data access without pre-provisioned API keys
- —Programmatic audit trail queries settled in USDC on Base
Fit
Best for
- —Agents needing keyless, pay-per-call audit data access
- —Developers experimenting with x402 payment-gated APIs
- —Use cases requiring no subscription or rate-limit constraints
Not for
- —High-volume audit log ingestion where per-call fees add up
- —Users who need detailed API documentation or guaranteed SLAs
- —Anyone without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/50 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is zero documentation on request/response schemas, no OpenAPI spec, and the specific audit/logs endpoint isn't even listed in the provider's own catalog. Docs pages are empty beyond a wallet-connect prompt. Effectively a stub listing.
Warnings
- —No OpenAPI spec or request/response schema available
- —Documentation pages (docs, API, pricing, README) are all empty — only show 'Connect wallet'
- —The /api/v1/audit/logs/50 endpoint is not listed in the provider's own homepage API catalog
- —Exact functionality and response format of this endpoint are unknown
- —No examples or error documentation available
Citations
- —Endpoint returns a valid x402 402 challenge with USDC on Base networkhttps://lowpaymentfee.com/api/v1/audit/logs/50
- —maxAmountRequired is 20000 base units of USDC (USD Coin, 6 decimals) = $0.02https://lowpaymentfee.com/api/v1/audit/logs/50
- —Provider advertises $0.02/request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —Docs, API, pricing, and README pages render only 'Connect wallet' with no further contenthttps://lowpaymentfee.com/docs