x402basequality 0.30

Loan amortization schedule API on Base, pay $0.02 per request via x402 with USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/loans/32/schedule

What it does

This endpoint at lowpaymentfee.com returns a loan amortization schedule for a specific loan (loan ID 32 in the URL path). It is part of a broader platform offering pay-per-request APIs across data analytics, AI/ML, finance, and utility categories, all settled on the Base network using USDC via the x402 payment protocol.

The x402 challenge confirms the endpoint is live and accepts POST requests. The maximum amount required is 20,000 base units of USDC (token contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base), which equals $0.02 given USDC's 6 decimals. This matches the site's advertised flat pricing of $0.02 per request. No API keys or rate limits are required; payment is made per-call via the X-PAYMENT header.

Documentation is extremely sparse. The /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what fields the loan schedule endpoint expects or returns. The endpoint path suggests it serves a pre-configured loan (ID 32), but it is unclear whether the POST body allows customizing loan parameters or whether other loan IDs are available. The output MIME type is application/json.

Capabilities

loan-amortization-schedulex402-paymentusdc-settlementbase-networkpay-per-requestno-api-key

Use cases

  • —Retrieving an amortization schedule for a loan showing principal and interest breakdowns per period
  • —Integrating loan schedule data into financial planning tools or dashboards
  • —Agent-driven financial calculations that need per-call payment without subscriptions

Fit

Best for

  • —Developers needing on-demand loan schedule data without API key management
  • —AI agents that can settle micropayments on Base via x402
  • —Quick prototyping of financial tools with pay-as-you-go pricing

Not for

  • —Users who need detailed documentation or OpenAPI specs before integrating
  • —High-volume batch processing where $0.02 per request adds up significantly
  • —Users without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/loans/32/schedule \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/loans/32/schedule
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 no documentation, no OpenAPI schema, no request/response examples, and the specific loan endpoint (ID 32) is not listed on the site's landing page. Effectively a stub listing.

Warnings

  • —No documentation available — /docs, /pricing, /api, and /README all return only a wallet connect prompt with no content
  • —No OpenAPI or request/response schema provided; input and output formats are unknown
  • —The specific endpoint /api/v1/loans/32/schedule is not listed among the site's advertised APIs, raising questions about its intended use
  • —It is unclear whether the loan ID (32) is fixed or whether other loan IDs are supported

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:21:50Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/GnHekQ
Loan amortization schedule API on Base, pay $0.02 per request via x402 with USDC. — Clawmart · Clawmart