Mortgage data endpoint on Base, pay-per-call with USDC via x402 protocol.
What it does
This endpoint at lowpaymentfee.com provides access to mortgage-related data at the path `/api/v1/mortgages/64`. 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/64` is not listed on the provider's homepage among the advertised API categories, so its exact response schema and data contents are unclear. The homepage lists endpoints priced at $0.02 per request; however, the x402 challenge for this particular endpoint advertises a maxAmountRequired of 20,000 base units of USDC (6 decimals), which equals $0.02 — consistent with the site's stated pricing. Payment is made via the x402 exact scheme on Base to the specified payTo address, settling in USDC (contract 0x8335…2913).
No OpenAPI schema, detailed documentation, or example responses were found for this endpoint. The docs, pricing, and README pages all returned minimal content (just a "Connect wallet" prompt). The endpoint itself is live and returns a proper 402 challenge. Because the endpoint path suggests a resource ID (64), it likely returns data for a specific mortgage record, but the exact fields and structure are unknown.
Capabilities
Use cases
- —Retrieving mortgage record data for a specific mortgage ID
- —Integrating mortgage information into financial dashboards or agent workflows
- —Programmatic access to mortgage details without API key registration
Fit
Best for
- —Agents or apps needing on-demand mortgage data with crypto micropayments
- —Developers who want keyless, pay-per-call API access on Base
- —Quick lookups of individual mortgage records
Not for
- —Bulk mortgage data downloads or batch processing (no documented batch endpoints)
- —Users who need detailed API documentation or guaranteed SLAs before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/mortgages/64 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is no documentation, no OpenAPI schema, no example responses, and the specific /mortgages/64 path is not listed among the provider's advertised APIs. The crawled docs/pricing/README pages are effectively empty. This is essentially a stub listing.
Warnings
- —The /api/v1/mortgages/64 endpoint is not listed among the provider's advertised APIs on the homepage — its purpose and response format are unknown.
- —No documentation, OpenAPI spec, or example responses are available for this endpoint.
- —All secondary pages (docs, pricing, README, api) returned only a 'Connect wallet' prompt with no useful content.
- —The endpoint path includes a numeric ID (64), suggesting it may be a specific record; the general /mortgages collection endpoint behavior is unknown.
Citations
- —The x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/mortgages/64
- —The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/mortgages/64
- —The homepage lists APIs in categories: Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure — but no mortgages categoryhttps://lowpaymentfee.com