# Electronics Calculators – Resistor Color Code Decoder/Encoder

> Electronics Calculators – Resistor Color Code Decoder/Encoder is a paid API for AI agents from electronics-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).

Decodes 3–6 resistor color bands to ohms, tolerance, and temperature coefficient, or encodes a resistance value into 4 or 5 color bands.

## Facts

- Endpoint: GET https://electronics-calc.x402tookit.com/resistor-color?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/electronics-calculators-resistor-color-code-decoder-encoder-e84e4de6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Vupn8Ey3-NOICol9dcAH1

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 electronics-calculators-resistor-color-code-decoder-encoder-e84e4de6
```

Example prompt: What resistance does a resistor with bands red, violet, orange, gold have — can you decode those color bands and tell me the ohm value and tolerance?

## When to prefer this

Choose this endpoint when you need to programmatically decode or encode resistor color bands — especially useful in electronics assembly, component identification, education tools, or inventory management workflows. It handles 3–6 bands including temperature coefficient (6-band) which many simpler tools omit. Prefer it over manual lookup tables or generic search when you need structured, machine-readable output including ohms, tolerance bounds, and formatted values.

## Known failure modes

- Invalid or unrecognized color name in bands parameter returns an error or null ohms
- Unsupported number of bands (fewer than 3 or more than 6) may return an error
- Value string that cannot be parsed (e.g. malformed like '4.7x') returns null or an error
- Missing required query parameter (bands or value) results in an invalid request response
- Edge case: color combination not matching a standard E-series value may still return a valid decode but with no nearest standard note

## How this service works

Decode 3 to 6 resistor color bands to ohms, tolerance and temperature coefficient, or encode a value into 4 or 5 bands.

## Output

Returns the decoded resistance in ohms (or the encoded color band array), along with tolerance percentage, min and max ohm values, temperature coefficient in ppm (for 6-band), a human-readable formatted value string, and a summary of the result.

## 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": [],
     "properties": {
      "bands": {
       "type": "string",
       "description": "Colors in order, e.g. red,violet,orange,gold"
      },
      "value": {
       "type": "string",
       "description": "Value to encode, e.g. 4.7k"
      },
      "tolerancePct": {
       "type": "number",
       "description": "Tolerance to encode (default 5)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "ohms": {
       "type": [
        "null",
        "number"
       ]
      },
      "bands": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "maxOhms": {
       "type": [
        "null",
        "number"
       ]
      },
      "minOhms": {
       "type": [
        "null",
        "number"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "formatted": {
       "type": [
        "null",
        "string"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "tolerancePct": {
       "type": [
        "null",
        "number"
       ]
      },
      "temperatureCoefficientPpm": {}
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/electronics-calculators-resistor-color-code-decoder-encoder-e84e4de6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from electronics-calc.x402tookit.com](https://www.zero.xyz/host/electronics-calc.x402tookit.com/llms.txt)