Mortgage data endpoint on Base, pay-per-request via x402 with USDC.
What it does
This endpoint at lowpaymentfee.com provides access to mortgage-related data at the path `/api/v1/mortgages/84`. It is part of a broader platform (lowpaymentfee.com) that offers a variety of pay-per-call 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/84` 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). The platform's landing page confirms a flat $0.02/request pricing model across its API catalog. No API keys or rate limits are required; payment is handled entirely through the x402 payment header.
Documentation is extremely sparse. The `/docs`, `/pricing`, `/api`, and `/README` pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what the mortgages endpoint actually returns. The endpoint path suggests it retrieves or processes data related to a specific mortgage record (ID 84), but the exact input parameters and response structure are unknown. The platform appears to be a generic x402 demonstration or early-stage service; treat the mortgage endpoint's actual data quality and completeness as unverified.
Capabilities
Use cases
- —Retrieving mortgage record data programmatically with per-call USDC payment
- —Integrating mortgage information into agent workflows without API key management
- —Exploring x402 payment protocol integration with financial data endpoints
Fit
Best for
- —Developers experimenting with x402 pay-per-call protocols
- —Agents needing keyless access to mortgage data on Base
- —Low-volume, on-demand mortgage data lookups
Not for
- —Production mortgage underwriting or compliance workflows (no documentation or data provenance)
- —High-volume bulk mortgage data retrieval (pay-per-call at $0.02 each adds up)
- —Users who need detailed API documentation or guaranteed SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/mortgages/84 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02/request in USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and no explanation of what the mortgages endpoint actually returns. The docs pages are empty. This is effectively a stub listing.
Warnings
- —No documentation available — all doc pages render only 'Connect wallet' with no content
- —No OpenAPI or request/response schema provided; input parameters and response format are unknown
- —The endpoint path '/api/v1/mortgages/84' is not listed on the provider's landing page among advertised APIs
- —Data provenance and accuracy of mortgage information is completely unverified
- —Platform may be a demonstration or early-stage service
Citations
- —The x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/mortgages/84
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and no minimumshttps://lowpaymentfee.com
- —USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/mortgages/84
- —Documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no substantive contenthttps://lowpaymentfee.com/docs