# NexusAPI Compound Interest Calculator

> NexusAPI Compound Interest Calculator is a paid API for AI agents from nexus-api-virid.vercel.app, paid per call via x402, $0.125661/call, status unknown (last checked 2026-09-15).

Calculates compound interest and investment growth based on principal, rate, time, and compounding frequency

## Facts

- Endpoint: POST https://nexus-api-virid.vercel.app/api/finance/compound/calc
- Price: $0.125661/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexusapi-compound-interest-calculator-95539e78
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LaSagTFXmN6L38ohDzgVD

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability nexusapi-compound-interest-calculator-95539e78 -d '<json body>'
```

Example prompt: Calculate how much $5,000 grows to if I invest it at a 6% annual interest rate compounded monthly over 10 years.

## When to prefer this

Use this endpoint when you need a quick, on-demand compound interest computation without setting up your own formula or relying on a spreadsheet. It is well-suited for AI agents that need to answer finance-related questions about savings growth, investment projections, or loan costs, especially in contexts where paying per call in USDC is acceptable and no API key management is desired.

## Known failure modes

- Missing or malformed query input returns a generic error
- Unsupported compounding frequency values may return an error or default behavior
- Very large or very small numeric inputs may cause precision issues
- Payment failure (insufficient USDC) blocks the request with a 402 response
- Ambiguous natural language query may return unexpected calculation results

## How this service works

Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

## Output

Returns a computed result with the total compounded balance, total interest earned, and possibly a breakdown by period, given an input principal, interest rate, time horizon, and compounding frequency.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Search query or input parameter"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nexusapi-compound-interest-calculator-95539e78/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nexus-api-virid.vercel.app](https://www.zero.xyz/host/nexus-api-virid.vercel.app/llms.txt)