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/19

What it does

This endpoint at lowpaymentfee.com provides access to mortgage-related data via a pay-per-request x402 protocol. The specific resource `/api/v1/mortgages/19` appears to serve mortgage information (likely a specific mortgage record or calculation) and accepts POST requests. Payment is settled on the Base network using USDC (USD Coin) at a cost of $0.02 per request.

The broader lowpaymentfee.com platform hosts a variety of x402-gated API endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced uniformly at $0.02 per call. The platform advertises no API keys, no rate limits, and instant access; authentication and billing are handled entirely through the x402 payment header mechanism.

Documentation is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what the `/api/v1/mortgages/19` endpoint actually returns. The mortgage endpoint is not listed on the homepage's catalog of available APIs, which raises questions about whether it is a production resource or a test/demo endpoint. Users should expect to experiment with the endpoint to discover its actual input and output format.

Capabilities

x402-paymentusdc-settlementbase-networkmortgage-datapay-per-requestno-api-key

Use cases

  • —Retrieving mortgage record or calculation data on a per-request basis
  • —Integrating mortgage information into agent workflows without API key management
  • —Programmatic access to mortgage data settled via crypto micropayments

Fit

Best for

  • —Developers or agents needing on-demand mortgage data with crypto-native billing
  • —x402-compatible agents that can pay per call on Base with USDC
  • —Prototyping pay-per-use financial data integrations

Not for

  • —Users who need detailed documentation or guaranteed SLAs before integrating
  • —Bulk mortgage data retrieval at scale (no documented batch support)
  • —Users without a Base-network USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/mortgages/19 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/mortgages/19
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live (returns a valid 402 x402 challenge), but there is no documentation, no OpenAPI schema, no request/response examples, and the mortgage endpoint is not even listed on the provider's homepage. Effectively a stub with only pricing and protocol details confirmed.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content.
  • —The /api/v1/mortgages/19 endpoint is not listed in the provider's homepage API catalog, raising questions about its status.
  • —No request or response schema is documented; input/output format is unknown.
  • —No OpenAPI spec or ai-plugin manifest found.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:50:02Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

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