# Saylor Innovations Ohm's Law Calculator

> Saylor Innovations Ohm's Law Calculator is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).

Calculates voltage, current, resistance, and power from any two known electrical values, returning results with milliamps, kilohms, and a recommended resistor wattage rating with 2x safety margin

## Facts

- Endpoint: GET https://saylorinnovations.com/api/electronics/ohms-law?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-ohm-s-law-calculator-714954c3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1jG-_6neN3FihOLvco6u3

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 saylor-innovations-ohm-s-law-calculator-714954c3
```

Example prompt: I have a 12V circuit with a 470 ohm resistor — can you calculate the current, power, and tell me what wattage resistor I should use with a safety margin?

## When to prefer this

Choose this endpoint when you need a quick, reliable Ohm's Law computation that goes beyond a basic formula — specifically when you want milliamp and kilohm conversions alongside a practical, safety-margined resistor wattage recommendation in a single call. Ideal for electronics hobbyists, makers, or agents building circuit-assistance tools where recommending a safe component rating matters.

## Known failure modes

- Missing required query parameters (v for volts, r for ohms) results in an error response
- Non-numeric or invalid string values for v or r may cause computation errors
- Zero-valued resistance could trigger divide-by-zero handling
- Payment failure (402) if x402 USDC payment is not completed before request

## How this service works

Solve volts, amps, ohms and watts from any two known values, with milliamps, kilohms and a recommended resistor wattage rating with a 2x margin

## Output

Returns a JSON object with volts, amps, milliamps, ohms, kilohms, watts, milliwatts, a minimum resistor wattage rating (raw value), a recommended common power rating string (e.g. '0.5W') representing a 2x safety margin, and optional note and source fields for context.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "v",
      "r"
     ],
     "properties": {
      "r": {
       "type": "string",
       "description": "Ohms"
      },
      "v": {
       "type": "string",
       "description": "Volts"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "volts",
      "amps",
      "watts"
     ],
     "properties": {
      "amps": {
       "type": "number",
       "description": "Current in amperes"
      },
      "note": {
       "type": "string",
       "description": "Caveat or context for reading the result"
      },
      "ohms": {
       "type": [
        "number",
        "null"
       ],
       "description": "Resistance in ohms"
      },
      "volts": {
       "type": "number",
       "description": "Voltage in volts"
      },
      "watts": {
       "type": "number",
       "description": "Power in watts"
      },
      "source": {
       "type": "string",
       "description": "Data source the values come from"
      },
      "kilohms": {
       "type": [
        "number",
        "null"
       ],
       "description": "Resistance in kilohms"
      },
      "milliamps": {
       "type": "number",
       "description": "Current in milliamperes"
      },
      "milliwatts": {
       "type": [
        "number",
        "null"
       ],
       "description": "Power in milliwatts"
      },
      "common_power_rating_to_use": {
       "type": "string",
       "description": "Common power rating to use"
      },
      "minimum_resistor_wattage_rating": {
       "type": "number",
       "description": "Minimum resistor wattage rating"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-ohm-s-law-calculator-714954c3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)