x402-gated loan data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to a specific loan resource (loan ID 72) via the x402 payment protocol. It is part of a broader platform that offers a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all gated behind x402 micropayments on the Base network.
The specific endpoint `/api/v1/loans/72` is labeled "Premium API Access" and accepts POST requests. Payment is settled in USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base. The x402 challenge advertises a maxAmountRequired of 20000 base units, which at 6 decimals for USDC equals $0.02 per request — consistent with the platform's uniform $0.02/request pricing. No API keys or rate limits are required; access is granted immediately upon valid payment.
Documentation is extremely sparse. The crawled /docs, /api, /pricing, and /README pages all returned only a "Connect wallet" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no description of what the loan data resource actually returns. The endpoint is confirmed live (402 challenge captured), but the lack of documentation makes it difficult to know what fields to send or expect back.
Capabilities
Use cases
- —Retrieving loan details or financial data for a specific loan record
- —Integrating pay-per-request loan data into automated agent workflows
- —Accessing financial data without API key registration
Fit
Best for
- —Agents that need on-demand loan data with no signup friction
- —Developers experimenting with x402 micropayment-gated APIs
- —Workflows requiring single-call financial data lookups
Not for
- —Bulk loan data retrieval (no documented batch endpoints)
- —Users who need detailed API documentation or schemas before integrating
- —Non-crypto users who cannot pay in USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/loans/72 \
-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 clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, and all documentation pages are empty stubs. The purpose of the /api/v1/loans/72 resource is undocumented, making this effectively a stub listing.
Warnings
- —No documentation available — /docs, /api, /pricing, and /README pages all return only a wallet-connect prompt with no content.
- —No OpenAPI or schema definition found; request and response formats are unknown.
- —The specific resource '/api/v1/loans/72' is not listed among the platform's advertised APIs, so its purpose and data format are unclear.
- —No examples of request body or response body are available.
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/loans/72
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/loans/72
- —Documentation pages (/docs, /api, /pricing, /README) contain only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs