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 via a pay-per-request x402 protocol. The specific resource `/api/v1/mortgages/82` is not explicitly documented on the provider's landing page, but the site hosts a broad catalog of x402-enabled API endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform follow the same pricing model: $0.02 per request, settled in USDC on the Base network with no API keys, rate limits, or commitments required.
The x402 challenge confirms the endpoint is live and accepts POST requests. Payment is made via the x402 "exact" scheme to a specified wallet address, with a maximum amount of 20,000 base units of USDC (0.02 USD given 6 decimals). The response MIME type is application/json. No detailed input or output schema is provided beyond the basic HTTP POST method declaration, so the exact request body format and response structure for this mortgage endpoint are unknown.
Because the `/api/v1/mortgages/82` path is not listed among the documented endpoints on the landing page, it may be an unlisted or experimental resource. The broader platform appears to be a demonstration or marketplace of x402-payable microservices. Documentation pages (docs, pricing, README) all returned only a "Connect wallet" prompt with no substantive content.
Capabilities
Use cases
- —Retrieving mortgage-related data for a specific record (ID 82)
- —Integrating pay-per-call mortgage information into agent workflows
- —Accessing financial data without API key registration
Fit
Best for
- —Agents needing on-demand mortgage data with crypto micropayments
- —Developers exploring x402 pay-per-request patterns
- —Workflows requiring keyless, permissionless API access on Base
Not for
- —Bulk mortgage data retrieval (no documented batch endpoints)
- —Users who need detailed API documentation or schema guarantees
- —Production systems requiring SLA or uptime guarantees
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/mortgages/82 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but this specific mortgage endpoint is not documented on the provider's site. No input/output schema, no examples, and all documentation pages are empty beyond a wallet-connect prompt. Effectively a stub listing.
Warnings
- —The /api/v1/mortgages/82 path is not listed among the provider's documented endpoints — it may be unlisted, experimental, or deprecated.
- —No request body schema or response schema is available; callers must guess the expected input format.
- —All documentation pages (docs, pricing, README) returned no substantive content — only a 'Connect wallet' prompt.
- —The nature of the data returned (what mortgage record 82 represents) is entirely unknown.
Citations
- —The platform advertises $0.02 per request with no API keys, no rate limits, and instant access on the Base network.https://lowpaymentfee.com
- —The x402 challenge returns maxAmountRequired of 20000 base units of USDC (USD Coin, 6 decimals = $0.02) on the Base network.https://lowpaymentfee.com/api/v1/mortgages/82
- —The endpoint accepts POST requests and returns application/json.https://lowpaymentfee.com/api/v1/mortgages/82