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/65/schedule

What it does

This endpoint at lowpaymentfee.com returns a loan amortization schedule for a specific loan (loan ID 65 in the URL path). It is part of a broader platform offering various pay-per-request APIs across data analytics, AI/ML, finance, and utility categories, all settled via the x402 protocol on the Base network using USDC.

The endpoint accepts POST requests and returns JSON. Payment is handled inline via the X-PAYMENT header using the x402 exact-payment scheme. The maximum amount required is 20,000 base units of USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base), which equals $0.02 given USDC's 6 decimals. There are no API keys, no rate limits, and no sign-up required — callers simply attach a valid x402 payment header to each request.

Documentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no additional 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 is confirmed live (402 challenge captured), but the actual functionality and input/output format must be inferred from the URL path alone.

Capabilities

loan-amortization-schedulex402-paymentusdc-settlementbase-networkpay-per-requestno-api-keyjson-response

Use cases

  • —Retrieve a detailed amortization schedule for a loan showing principal and interest breakdowns per period
  • —Integrate loan payment schedule data into a fintech application without managing API keys
  • —Programmatically access loan repayment information from an AI agent with inline micropayments

Fit

Best for

  • —Agents or apps needing on-demand loan schedule data without subscription overhead
  • —Developers building fintech tools who want frictionless pay-per-call pricing
  • —x402-compatible clients on the Base network looking for low-cost financial APIs

Not for

  • —Users who need bulk or batch loan calculations at volume discounts
  • —Anyone requiring detailed API documentation or guaranteed SLA before integration
  • —Use cases requiring custom loan parameters if the endpoint only serves a fixed loan ID

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/loans/65/schedule \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/loans/65/schedule
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages returned only a wallet-connect prompt. The specific loan ID (65) hardcoded in the path raises questions about whether this is a general-purpose endpoint or a single fixed resource. Effectively a stub listing.

Warnings

  • —No API documentation available — all doc pages return only 'Connect wallet' with no content
  • —No OpenAPI or input/output schema provided; request and response formats are unknown
  • —The endpoint path contains a hardcoded loan ID (65); it is unclear whether other loan IDs are supported or how loans are created
  • —No request or response examples available from any source

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:32:12Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/wFWSz4
Loan amortization schedule API on Base, pay $0.02 per request via x402 with USDC. — Clawmart · Clawmart