x402basequality 0.25

Mortgage data endpoint on Base, pay-per-request via x402 with USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/mortgages/37

What it does

This endpoint at lowpaymentfee.com provides access to mortgage-related data via a pay-per-call x402 protocol. The specific resource `/api/v1/mortgages/37` appears to serve mortgage information (likely a specific mortgage record or calculation) and accepts POST requests. Payment is settled in USDC on the Base network at $0.02 per request.

The provider lowpaymentfee.com hosts a broad catalog of x402-gated APIs spanning data & analytics, AI/ML inference, finance, crypto, infrastructure utilities, and more — all priced uniformly at $0.02 per request. The platform advertises no API keys, no rate limits, and instant access; callers simply attach an x402 payment header to each request. However, documentation is extremely thin: the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further technical detail.

Because there is no OpenAPI schema, no request/response examples, and no documentation describing what the `/api/v1/mortgages/37` endpoint actually returns or what POST body it expects, the exact capabilities of this endpoint are unclear. The x402 challenge is live and well-formed, confirming the endpoint is operational and will accept payment, but the lack of documentation makes integration speculative.

Capabilities

x402-paymentusdc-basemortgage-datapay-per-requestpost-endpoint

Use cases

  • —Retrieving mortgage record or calculation data on demand
  • —Integrating mortgage information into financial applications
  • —Agent-driven mortgage data lookups with micropayments

Fit

Best for

  • —Developers needing on-demand mortgage data without API key management
  • —AI agents that can settle x402 payments on Base
  • —Applications requiring pay-per-use financial data endpoints

Not for

  • —Users who need detailed API documentation before integrating
  • —Bulk mortgage data retrieval (pay-per-request model may be costly at scale)
  • —Non-crypto users who cannot settle USDC payments on Base

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/mortgages/37 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/mortgages/37
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The x402 challenge is live and well-formed, confirming the endpoint is operational. However, there is zero documentation on request format, response schema, or what 'mortgages/37' actually returns. No OpenAPI spec, no examples, and all doc pages are empty. This is effectively a stub listing.

Warnings

  • —No API documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'
  • —No OpenAPI or request/response schema provided for this endpoint
  • —The purpose of '/api/v1/mortgages/37' (specific record vs. calculation) is unclear
  • —The '/mortgages/' path is not listed on the provider's homepage catalog, raising questions about whether it is a supported production endpoint

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:52:42Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/kTQMz7
Mortgage data endpoint on Base, pay-per-request via x402 with USDC. — Clawmart · Clawmart