x402basequality 0.30

Loan amortization schedule API, pay-per-call at $0.02 via USDC on Base.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/loans/3/schedule

What it does

This x402-enabled endpoint at lowpaymentfee.com returns a loan amortization schedule for a specific loan (loan ID 3 in the URL path). It is part of a broader platform offering dozens of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments.

The endpoint accepts POST requests and is gated by the x402 payment protocol. Callers must include an X-PAYMENT header containing a valid payment proof settled in USDC on the Base network. The maximum amount required per call is 20,000 base units of USDC (i.e., $0.02, since USDC uses 6 decimals). The payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout window.

Documentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint is confirmed live (returns a proper 402 challenge), but the actual input parameters and response format for the loan schedule must be inferred from the endpoint path and description alone.

Capabilities

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

Use cases

  • —Generating an amortization schedule for a loan to see payment breakdowns over time
  • —Integrating loan schedule data into a financial planning application
  • —Agents autonomously fetching loan repayment details without pre-registration

Fit

Best for

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

Not for

  • —Users who need detailed API documentation or OpenAPI specs before integrating
  • —Bulk or high-volume loan processing where per-request fees add up
  • —Users without access to USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/loans/3/schedule \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/loans/3/schedule
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live with a valid x402 402 challenge, but there is zero documentation on request parameters, response schema, or what loan ID 3 represents. The /docs and other pages are empty beyond a wallet connect prompt. No OpenAPI spec or examples are available, making this effectively a stub listing.

Warnings

  • —No API documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content
  • —No OpenAPI or request/response schema provided; input parameters and output format are unknown
  • —The endpoint path is hardcoded to loan ID 3 — unclear if other loan IDs are supported or how loans are created
  • —The platform lists many API categories on its landing page but none have visible documentation

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:37:14Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/wRDFfC
Loan amortization schedule API, pay-per-call at $0.02 via USDC on Base. — Clawmart · Clawmart