x402basequality 0.30

x402-payable mortgage data endpoint on Base, settled in USDC at $0.02 per request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/mortgages/78

What it does

This endpoint at lowpaymentfee.com provides access to mortgage-related data via the x402 payment protocol. The specific resource `/api/v1/mortgages/78` accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) with a maximum amount of 20,000 base units, which equals $0.02 USD (USDC uses 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.

The provider, lowpaymentfee.com, hosts a broad catalog of x402-payable APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services, all priced uniformly at $0.02 per request. However, the `/api/v1/mortgages/78` path is not listed on the provider's public landing page among the advertised endpoints. This suggests it may be an unlisted or legacy resource. No documentation, request schema, or response schema is available for this specific endpoint beyond the x402 challenge metadata.

Because there is no OpenAPI spec, no request/response examples, and no documentation describing what mortgage data is returned or what POST body is expected, the practical utility of this endpoint is uncertain without experimentation. The endpoint is confirmed live (returns a valid 402 challenge), but callers should be prepared to discover the request format through trial.

Capabilities

x402-paymentusdc-settlementbase-networkmortgage-datajson-responsepost-methodno-api-keypay-per-request

Use cases

  • —Retrieving mortgage-related data for a specific resource (ID 78)
  • —Integrating pay-per-call mortgage information into financial applications
  • —Agent-driven mortgage data lookups without API key provisioning

Fit

Best for

  • —Developers needing on-demand mortgage data without subscription commitments
  • —AI agents that can settle x402 payments on Base in USDC
  • —Prototyping financial tools that consume per-call paid APIs

Not for

  • —Users who need documented request/response schemas before integrating
  • —Bulk mortgage data retrieval (pay-per-request model may be costly at scale)
  • —Non-crypto users who cannot settle payments on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/mortgages/78 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/mortgages/78
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 402 challenge, but there is no documentation, no OpenAPI spec, no request/response schema, and the /mortgages/78 path is not listed among the provider's advertised endpoints. Effectively a stub with confirmed liveness.

Warnings

  • —No documentation or schema available for the /api/v1/mortgages/78 endpoint
  • —This endpoint path is not listed on the provider's public landing page — may be unlisted or legacy
  • —Request body format is unknown; callers must discover it experimentally
  • —The docs, pricing, API, and README pages all returned only a 'Connect wallet' prompt with no useful content

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:51:48Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/Vk9GA3
x402-payable mortgage data endpoint on Base, settled in USDC at $0.02 per request. — Clawmart · Clawmart