x402basequality 0.30

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/mortgages/81

What it does

This endpoint at lowpaymentfee.com provides access to mortgage-related data at the path `/api/v1/mortgages/81`. It is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-request API endpoints 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/81` 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 shown on the landing page. Payment is made inline via the X-PAYMENT header; no API keys or accounts are required.

The endpoint's exact response schema is not documented — the crawled docs, pricing, and README pages all returned only a wallet-connect stub with no further detail. The mortgage resource ID "81" suggests this may return data for a specific mortgage record or calculation, but without documentation or example responses, the precise payload structure is unknown. The platform advertises no rate limits and instant access.

Capabilities

x402-paymentusdc-basepay-per-requestmortgage-datajson-apino-api-key

Use cases

  • —Retrieving mortgage record or calculation data programmatically
  • —Integrating mortgage information into financial dashboards
  • —Agent-driven mortgage data lookups with automatic micropayment

Fit

Best for

  • —Developers needing on-demand mortgage data without subscription commitments
  • —AI agents that can settle x402 USDC payments on Base
  • —Applications requiring low-cost, keyless API access to financial data

Not for

  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —Bulk mortgage data retrieval where per-request pricing would be costly
  • —Users without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/mortgages/81 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/mortgages/81
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02/request in USDC on Base). However, there is no documentation, no request/response schema, and the mortgage-specific functionality is entirely undocumented. The docs, pricing, and README pages all returned only a wallet-connect stub with no useful content.

Warnings

  • —No API documentation available — docs, pricing, and README pages return only a wallet-connect stub
  • —No request body schema or response schema documented for /api/v1/mortgages/81
  • —The specific meaning of resource ID '81' is unknown
  • —The endpoint path '/api/v1/mortgages/81' does not appear in the site's listed API catalog, raising questions about its provenance

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:49:05Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/Cup5wZ
Mortgage data endpoint on Base, pay-per-call with USDC via x402. — Clawmart · Clawmart