# Sindri Scientific Unit Converter

> Sindri Scientific Unit Converter is a paid API for AI agents from x402.outpimp.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Converts numeric values between units of pressure, energy, and molarity using exact scientific conversion factors.

## Facts

- Endpoint: POST https://x402.outpimp.com/unitConvertScientific
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sindri-scientific-unit-converter-142efe90
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_r4xDGxx55T7g4leqJJLqG

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 sindri-scientific-unit-converter-142efe90 -d '<json body>'
```

Example prompt: Convert 2.5 atm to kilopascals — it's a pressure conversion.

## When to prefer this

Choose this endpoint when you need precise, scientifically exact conversions specifically for pressure (atm, bar, Pa, psi), energy (kcal, kJ, eV, J), or molarity (mol/L, mmol/L, molar) — not for general-purpose length, mass, volume, or temperature conversions, which are handled by a sibling endpoint.

## Known failure modes

- Unsupported unit strings for the given category return an error
- Mismatched category and unit (e.g. passing an energy unit under pressure category) causes failure
- Missing required fields (value, from, to, category) result in validation errors
- Non-numeric value input returns a schema validation error

## How this service works

Scientific unit conversion for pressure, energy, and molarity using exact conversion factors.

## Output

Returns the converted numeric value in the target unit, computed using exact scientific conversion factors for pressure, energy, or molarity categories.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "to": {
   "type": "string",
   "description": "Target unit."
  },
  "from": {
   "type": "string",
   "description": "Source unit, e.g. \"atm\", \"kcal\", \"mol/l\"."
  },
  "value": {
   "type": "number",
   "description": "The numeric value to convert."
  },
  "category": {
   "enum": [
    "pressure",
    "energy",
    "molarity"
   ],
   "type": "string",
   "description": "Unit category."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sindri-scientific-unit-converter-142efe90/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.outpimp.com](https://www.zero.xyz/host/x402.outpimp.com/llms.txt)