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/48` is part of the lowpaymentfee.com platform, which offers a variety of pay-per-request APIs spanning data & analytics, AI/ML, finance & Web3, and infrastructure utilities. All endpoints use the x402 payment protocol, settling in USDC on the Base network. The specific resource at `/loans/48` is labeled "Premium API Access" and appears to serve loan-related data, though the exact response schema is not documented.
The platform advertises a flat $0.02 per request across all endpoints, with no API keys, no rate limits, and no minimum commitments required. The x402 challenge confirms the endpoint is live, accepting POST requests and requiring payment of up to 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) to the specified wallet address on Base. The payment timeout is 300 seconds.
Documentation is extremely sparse — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no additional content. There is no OpenAPI spec, no request/response schema beyond the x402 challenge's outputSchema stub, and no examples of what the `/loans/48` endpoint actually returns. The endpoint is confirmed live via the 402 challenge, but the lack of documentation makes it difficult to know what data to send or expect back.
Capabilities
Use cases
- —Fetching loan-related data on a per-request payment basis
- —Integrating pay-per-call financial data into agent workflows
- —Accessing premium loan information without API key registration
Fit
Best for
- —Agents or applications that need on-demand loan data without subscription commitments
- —Developers experimenting with x402 payment-gated APIs on Base
- —Workflows requiring keyless, pay-as-you-go API access
Not for
- —Use cases requiring detailed API documentation or guaranteed response schemas
- —High-volume consumers who would benefit from bulk pricing or subscriptions
- —Anyone needing non-USDC or non-Base payment settlement
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/loans/48 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no OpenAPI spec, no request/response examples, and the docs/pricing/README pages are all empty beyond a wallet connect prompt. The purpose of `/api/v1/loans/48` is unclear — it could be a demo or placeholder. This is effectively a stub listing.
Warnings
- —No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'
- —No OpenAPI or schema describing request parameters or response format for /api/v1/loans/48
- —The specific purpose of the /loans/48 resource is undocumented; 'Premium API Access' is a generic label used across the platform
- —Cannot verify what data this endpoint actually returns without making a paid request
Citations
- —The platform charges $0.02 per request with no API keys, no rate limits, and no minimumshttps://lowpaymentfee.com
- —The x402 challenge requires up to 20,000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base networkhttps://lowpaymentfee.com/api/v1/loans/48
- —Payment timeout is 300 seconds and the endpoint accepts POST requestshttps://lowpaymentfee.com/api/v1/loans/48
- —Docs, pricing, API, and README pages render only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs