Pay-per-call loan data endpoint on Base via x402, settled in USDC at $0.02/request.
What it does
This endpoint at `/api/v1/loans/34` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-request APIs accessible via the x402 payment protocol on the Base network. The endpoint is labeled "Premium API Access" and accepts POST requests, returning JSON responses. Payment is settled in USDC (contract `0x8335…2913` on Base) with a maximum charge of 20,000 base units, which equals $0.02 per request (USDC uses 6 decimals).
The broader lowpaymentfee.com platform advertises categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities — all priced uniformly at $0.02 per request. The specific `/api/v1/loans/34` path suggests a finance or lending-related data resource (e.g., loan details for record ID 34), but no detailed documentation, request schema, or response schema is available from the crawled material. The docs, pricing, and API pages all returned only a "Connect wallet" prompt with no substantive content.
The endpoint is confirmed live: the probe received a proper HTTP 402 x402 challenge with version 1 headers. No API keys or rate limits are advertised. The platform's value proposition is simplicity — no sign-up, no keys, just attach an x402 payment header and receive data. However, the lack of documentation for this specific endpoint means callers must discover the expected POST body and response format through experimentation or additional out-of-band information.
Capabilities
Use cases
- —Retrieving loan or lending data for a specific record on demand
- —Integrating pay-per-call financial data into agent workflows without API key management
- —Programmatic access to loan information settled via crypto micropayments
Fit
Best for
- —Agents or apps needing on-demand loan data without subscription commitments
- —Developers experimenting with x402 pay-per-request patterns on Base
- —Low-volume consumers who want to avoid API key registration
Not for
- —High-volume bulk data retrieval where per-request costs add up
- —Users who need detailed API documentation and guaranteed schema stability
- —Non-crypto users without access to USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/loans/34 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is confirmed live with a valid x402 402 challenge, and pricing is clear ($0.02 USDC per request). However, there is no documentation for the specific /api/v1/loans/34 path — no request schema, no response schema, no examples. The docs pages returned only wallet-connect prompts. The endpoint's actual purpose (loan data for ID 34) is inferred from the URL path alone.
Warnings
- —No documentation available for this specific endpoint — request and response schemas are unknown
- —All doc/pricing/API pages return only a 'Connect wallet' prompt with no substantive content
- —The endpoint path '/api/v1/loans/34' appears to reference a single hardcoded resource ID; unclear if this is a demo or production resource
- —No OpenAPI spec or AI plugin manifest found
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/loans/34
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/loans/34
- —Platform advertises $0.02 per request, no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —Platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com