x402-gated loan data endpoint on Base, pay-per-request with USDC.
What it does
This endpoint at `/api/v1/loans/47` is part of the lowpaymentfee.com platform, a collection of x402-protocol pay-per-request APIs spanning data analytics, AI/ML, finance, infrastructure, and more. The specific `/loans/47` resource is labeled "Premium API Access" and returns JSON data via POST. It is gated behind an x402 payment challenge requiring USDC on the Base network.
The x402 challenge advertises a maximum amount of 20,000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, which uses 6 decimals), equating to $0.02 per request. The platform's landing page confirms uniform $0.02/request pricing across all endpoints, with no API keys, no rate limits, and no minimum commitments. Payment is settled on-chain to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout.
Documentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no explanation of what the `/loans/47` resource actually returns. The endpoint name and path suggest loan-related financial data (possibly a specific loan record), but this is inference only. The endpoint is confirmed live via the 402 challenge response.
Capabilities
Use cases
- —Retrieving loan-related financial data on a per-request basis
- —Integrating pay-per-call loan data into agent workflows
- —Accessing premium financial records without API key management
Fit
Best for
- —Agents needing on-demand loan data with no subscription commitment
- —Developers experimenting with x402 pay-per-request protocols
- —Low-volume financial data consumers who prefer per-call pricing
Not for
- —Users needing detailed API documentation or schema guarantees before integration
- —High-volume consumers who would benefit from bulk/subscription pricing
- —Anyone requiring non-USDC or non-Base-network payment options
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/loans/47 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no explanation of what /api/v1/loans/47 actually returns. The listing is effectively a stub.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content.
- —No OpenAPI or schema definition found; request and response formats are unknown.
- —The specific resource /api/v1/loans/47 is not listed on the landing page among the advertised APIs, raising questions about its purpose and availability.
- —Cannot confirm what data the endpoint returns without paying for a request.
Citations
- —The x402 challenge requires 20,000 base units of USDC on Base network (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), equating to $0.02 per request.https://lowpaymentfee.com/api/v1/loans/47
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on the Base network.https://lowpaymentfee.com
- —Payment is made to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout.https://lowpaymentfee.com/api/v1/loans/47