x402basequality 0.25

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/mortgages/83

What it does

This endpoint at lowpaymentfee.com provides access to mortgage-related data (resource ID 83) via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of $0.02 per request (20,000 base units at 6 decimals).

The provider, lowpaymentfee.com, hosts a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. The specific mortgage endpoint (/api/v1/mortgages/83) is not listed on the provider's landing page among the advertised categories, so its exact response schema and data contents are unknown. It may return mortgage rate data, loan details, or financial calculations, but this cannot be confirmed from available documentation.

Documentation is extremely thin: the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema beyond the x402 outputSchema stub, and no usage examples. The endpoint is confirmed live (returns a valid 402 challenge), but the lack of documentation makes it difficult to know what to send in the POST body or what the response will contain.

Capabilities

x402-paymentusdc-settlementbase-networkmortgage-datapay-per-callno-api-keyjson-response

Use cases

  • —Retrieving mortgage-related data programmatically with per-call USDC payment
  • —Integrating mortgage information into financial dashboards or agent workflows
  • —Querying specific mortgage records (ID 83) without subscription or API key management

Fit

Best for

  • —Agents or apps needing on-demand mortgage data with crypto micropayments
  • —Developers wanting keyless, pay-as-you-go API access on Base
  • —Workflows that settle per-call costs in USDC without subscriptions

Not for

  • —Users who need comprehensive mortgage API documentation before integrating
  • —Applications requiring bulk mortgage data at scale with predictable pricing
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/mortgages/83 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/mortgages/83
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid x402 402 challenge, but there is no documentation, no request/response schema, no examples, and the specific mortgage endpoint is not even listed on the provider's own landing page. Effectively a stub with confirmed liveness.

Warnings

  • —The /api/v1/mortgages/83 endpoint is not listed among the provider's advertised APIs — its purpose and data contents are unverified.
  • —All documentation pages (/docs, /pricing, /api, /README) render only a 'Connect wallet' prompt with no usable content.
  • —No request body schema or response schema is available; callers cannot know what to POST or what to expect back.
  • —The provider's catalog appears to be a generic template with many endpoint categories; actual data quality and reliability are unknown.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:52:43Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

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