Mortgage data endpoint on Base, pay-per-call via x402 with USDC.
What it does
This endpoint at lowpaymentfee.com provides access to mortgage-related data at the path `/api/v1/mortgages/85`. It is part of a broader platform (lowpaymentfee.com) that offers a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all gated via the x402 payment protocol on the Base network using USDC.
The specific endpoint `/api/v1/mortgages/85` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). This is consistent with the platform's uniform $0.02/request pricing displayed on its landing page. Payment is settled on-chain to the address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3, with a timeout of 300 seconds.
Documentation for this specific endpoint is sparse — the crawled docs, pricing, and README pages all returned only a "Connect wallet" prompt with no further content. The endpoint path suggests it retrieves or processes data for a specific mortgage record (ID 85), but the exact request body schema and response fields are not documented. The platform advertises no API keys, no rate limits, and instant access. Without detailed documentation or example responses, the precise data returned by this mortgage endpoint remains unclear.
Capabilities
Use cases
- —Retrieving mortgage record data programmatically with per-call payment
- —Integrating mortgage information into financial dashboards or agent workflows
- —Querying specific mortgage details without API key registration
Fit
Best for
- —Agents or apps needing on-demand mortgage data without subscription commitments
- —Developers experimenting with x402 pay-per-call protocols
- —Crypto-native workflows that can settle USDC on Base
Not for
- —Users who need detailed documentation or guaranteed SLA before integrating
- —Bulk mortgage data retrieval where per-call pricing would be cost-prohibitive
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/mortgages/85 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no documentation for the mortgage endpoint's request/response schema, no OpenAPI spec, and the crawled doc pages are empty. The specific purpose of '/mortgages/85' is inferred from the URL path alone.
Warnings
- —No documentation available for this specific endpoint — docs pages return only 'Connect wallet' with no content.
- —Request body schema and response format are completely undocumented; integration requires trial and error.
- —The endpoint path '/mortgages/85' suggests a single fixed resource ID; it is unclear whether other IDs are available or what data is returned.
- —This endpoint may involve regulated financial data (mortgages); verify compliance requirements before use.
Citations
- —The platform advertises $0.02/request uniform pricing with no API keys, no rate limits, and instant access on Base network.https://lowpaymentfee.com
- —The x402 challenge returns maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base, equaling $0.02.https://lowpaymentfee.com/api/v1/mortgages/85
- —The endpoint accepts POST requests and returns application/json per the x402 challenge outputSchema.https://lowpaymentfee.com/api/v1/mortgages/85