Simple / compound interest
finance.openverbs.com · 6 paid endpoints · listed 2026-10-27
Present value of a future sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due.
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| POST | finance.openverbs.com/v1/future-value Future value of a present sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due (payments at the | $0.004 | Base |
| POST | finance.openverbs.com/v1/interest Grow a principal by simple or compound interest over a number of years. Compound interest uses compoundsPerYear compounding periods (default 12, monthly). | $0.004 | Base |
| POST | finance.openverbs.com/v1/irr Internal rate of return (per period) of a series of cash flows, solved with a bounded bisection. Requires at least one positive and one negative flow; flows wit | $0.004 | Base |
| POST | finance.openverbs.com/v1/loan Compute the level monthly payment, total paid and total interest of a fully-amortizing loan. Handles a 0% rate. Set schedule=true to also return the full month- | $0.004 | Base |
| POST | finance.openverbs.com/v1/npv Net present value of a series of cash flows discounted at a per-period rate. cashflows[0] is the time-0 flow (typically the initial outlay, negative). | $0.004 | Base |
| POST | finance.openverbs.com/v1/present-value Present value of a future sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due. | $0.004 | Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 5 days ago | finance.openverbs.com/v1/future-value | 402 | 633 | valid x402 v2 terms |
Income on Base (7 days)
This provider's payout address is shared by several providers, so its income is not shown as its own.
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<a href="https://logicnodes.io/observatory/p/finance.openverbs.com"><img src="https://logicnodes.io/observatory/badge/finance.openverbs.com.svg" alt="x402 status"></a>
Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/finance.openverbs.com