Vellium & Co

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AgentTools

Calculate the fixed monthly payment for a loan from its principal, annual interest rate and term in years, plus total repaid and total interest (annuity formula). Use this when an agent needs to monthly payment, total cost and interest for

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
125 ms
Price
$0.003 per call
Paying buyers, last 30 days
3 (directory's own records)
Paid calls, last 30 days
6
Category
Economic data (macro)
Address
https://agenttools-hub.vercel.app/api/v1/calculators/loan-payment-calculator

Accuracy

Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.

For agents

This page as JSON: /sellers/f4e0b03548fb.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].