x402basequality 0.30

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/loans/45/schedule

What it does

This endpoint at lowpaymentfee.com returns a loan amortization schedule for a specific loan (loan ID 45 in the URL path). It is part of a broader platform offering dozens of 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 endpoint accepts POST requests and returns JSON. Each call costs $0.02 in USDC (20,000 base units with 6 decimals) settled on-chain to the provider's wallet. There are no API keys, no rate limits, and no subscription commitments — you pay per request with an x402 payment header. The x402 challenge confirms the endpoint is live, advertising x402 version 1 with an "exact" payment scheme.

Documentation is extremely sparse. The crawled docs, API, pricing, and README pages all rendered only a "Connect wallet" prompt with no additional content. There is no OpenAPI spec, no request/response schema, and no example payloads available. The specific input parameters for generating a loan schedule (e.g., principal, rate, term) and the structure of the returned schedule are unknown from the available material. The endpoint path suggests it may be tied to a pre-existing loan resource (ID 45) rather than accepting arbitrary loan parameters, but this cannot be confirmed.

Capabilities

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

Use cases

  • —Retrieve a payment schedule for a loan showing principal and interest breakdown per period
  • —Integrate loan amortization data into financial planning tools or dashboards
  • —Programmatic access to loan schedule data for agent-driven financial workflows

Fit

Best for

  • —Developers needing on-demand loan schedule calculations without API key management
  • —AI agents that can settle micropayments on Base for financial data
  • —Applications requiring pay-per-use financial computation endpoints

Not for

  • —Users who need detailed API documentation or OpenAPI specs before integrating
  • —High-volume batch loan calculations where per-request pricing may add up
  • —Anyone without a Base-compatible USDC wallet for x402 payments

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/loans/45/schedule \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/loans/45/schedule
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The x402 challenge is live and confirms pricing and payment details, but there is zero documentation on request parameters, response schema, or what loan ID 45 represents. No OpenAPI spec, no examples, and all doc pages render only a wallet-connect prompt. This is effectively a stub listing.

Warnings

  • —No API documentation available — all doc pages return only a 'Connect wallet' prompt
  • —No OpenAPI or request/response schema provided
  • —Endpoint path is hardcoded to loan ID 45; unclear if other loan IDs are supported or how loans are created
  • —No examples of request body or response structure available from crawled material

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:20:34Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/qWn3GE
Loan amortization schedule API, pay-per-request via x402 on Base (USDC). — Clawmart · Clawmart