x402basequality 0.30

Loan amortization schedule API, pay-per-request via x402 on Base (USDC).

Price
0.02 USDC / call
Protocol
x402
Verified
no

What it does

This endpoint at lowpaymentfee.com returns a loan amortization schedule for a specific loan (loan ID 93 in the URL path). It is part of a broader platform offering various pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all gated behind the x402 payment protocol on the Base network using USDC.

The specific endpoint `/api/v1/loans/93/schedule` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335… on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform's landing page confirms uniform $0.02/request pricing across all endpoints, with no API keys, no rate limits, and no minimum commitments required.

While the endpoint is live and returns a valid 402 challenge, 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 fields the loan schedule contains or what input parameters the POST body expects. The loan-specific path (`/loans/93/schedule`) suggests this may be a demo or fixed-resource endpoint rather than a general-purpose loan calculator. Without documentation, the exact request format and response structure remain unknown.

Capabilities

loan-amortization-schedulex402-paymentusdc-base-networkpay-per-requestjson-api

Use cases

  • Retrieving an amortization schedule for a specific loan
  • Integrating loan payment breakdowns into financial dashboards
  • Agent-driven loan analysis workflows that pay per call

Fit

Best for

  • Developers needing simple pay-per-call loan schedule data
  • AI agents with x402/USDC payment capability on Base
  • Prototyping financial tools without API key signup

Not for

  • Production loan origination systems requiring documented, stable APIs
  • Users needing configurable loan parameters (no docs on input schema)
  • Anyone without a Base-network USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/loans/93/schedule \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

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 or response schema. The docs/pricing/README pages are all empty beyond a wallet connect prompt. The loan-specific path (/loans/93) suggests a fixed resource rather than a general API, and no examples exist.

Warnings

  • No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'
  • No OpenAPI or request/response schema provided
  • Endpoint path references a specific loan ID (93); unclear if this is a demo or if other loan IDs are supported
  • No information on what POST body fields are expected

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:37:36Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

Loan amortization schedule API, pay-per-request via x402 on Base (USDC). — Clawmart · Clawmart