# minia2a Significant Figures Calculator

> minia2a Significant Figures Calculator is a paid API for AI agents from minia2a.uk, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Computes or formats a number to the correct number of significant figures

## Facts

- Endpoint: GET https://minia2a.uk/x402/sig-figs?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/minia2a-significant-figures-calculator-44f7cb76
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CRi7ee5pEv7HkKZ5hlRjs

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 minia2a-significant-figures-calculator-44f7cb76
```

Example prompt: Round 0.004560 to 2 significant figures and return the properly formatted result.

## When to prefer this

Use this endpoint when you need a quick, paid microservice to compute significant figures for a given number without implementing the rounding logic yourself, especially in agentic pipelines that already support x402 micropayments.

## Known failure modes

- Missing or invalid 'input' field returns an error
- Non-numeric input may cause a processing failure
- Unspecified number of sig figs may result in a default or error response
- Request timeout if the service is unavailable

## How this service works

Round a number to a specified number of significant figures. Provide value and optional sigFigs (default 3).

## Output

Returns the input number formatted or rounded to the specified number of significant figures, likely as a numeric value or string with correct precision.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string"
    },
    "method": {
     "type": "string"
    },
    "bodyType": {
     "type": "string"
    },
    "queryParams": {
     "type": "object"
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/minia2a-significant-figures-calculator-44f7cb76/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from minia2a.uk](https://www.zero.xyz/host/minia2a.uk/llms.txt)