x402basequality 0.30

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/mortgages/11

What it does

This endpoint at lowpaymentfee.com provides access to mortgage-related data at the path `/api/v1/mortgages/11`. 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 endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network.

The specific endpoint `/api/v1/mortgages/11` 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. The platform advertises no API keys, no rate limits, and instant access.

Documentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what mortgage data is returned or what parameters the POST body expects. The endpoint is live (402 challenge confirmed), but without documentation the actual functionality and data schema remain unknown.

Capabilities

x402-paymentusdc-settlementbase-networkmortgage-dataper-request-pricingjson-response

Use cases

  • —Retrieving mortgage-related data on demand with micropayments
  • —Integrating mortgage information into financial applications without API key management
  • —Agent-driven mortgage data lookups settled in USDC on Base

Fit

Best for

  • —Developers needing on-demand mortgage data with no subscription commitment
  • —AI agents that can settle x402 payments in USDC on Base
  • —Applications requiring keyless, pay-per-request financial data access

Not for

  • —Users who need detailed API documentation or schema guarantees before integrating
  • —Bulk mortgage data retrieval where per-request pricing would be cost-prohibitive
  • —Non-crypto users who cannot settle payments on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/mortgages/11 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/mortgages/11
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing, but there is zero documentation on request parameters, response schema, or what mortgage data is actually served. No OpenAPI spec, no examples, and all doc pages are empty beyond a wallet connect prompt.

Warnings

  • —No documentation available — all doc/API/pricing/README pages return only 'Connect wallet' with no content
  • —No request body schema or response schema documented; unknown what data this endpoint actually returns
  • —The path '/api/v1/mortgages/11' suggests a specific resource (ID 11) but no context on what that resource represents
  • —This endpoint is not listed on the provider's homepage among their advertised APIs

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:47:43Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

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