# Saylor Innovations Resistor Color Code Decoder/Encoder

> Saylor Innovations Resistor Color Code Decoder/Encoder 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).

Decodes 4, 5, or 6 color band resistor codes into resistance, tolerance, and temperature coefficient values, or encodes an ohm value into E24 color bands

## Facts

- Endpoint: GET https://saylorinnovations.com/api/electronics/resistor-code?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-resistor-color-code-decoder-encoder-67de71ec
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_urVXBXRc_NVMm8xq3jqQp

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-resistor-color-code-decoder-encoder-67de71ec
```

Example prompt: What resistance value and tolerance does a resistor with the color bands brown, black, red, gold have? Decode those 4 bands into ohms and tolerance range for me.

## When to prefer this

Use this endpoint when you need to quickly decode or encode resistor color bands in an electronics or hardware context without manual lookup tables. Ideal for hardware agents, electronics assistants, or PCB design tools that need to identify component values from physical markings or find the right color-coded component to order.

## Known failure modes

- Invalid or unrecognized color name in bands parameter returns an error
- Too few or too many bands (not 4, 5, or 6) may produce an error or unexpected result
- Ohm value outside the E24 series range may not encode cleanly
- Misspelled color names cause lookup failure
- Missing required 'bands' query parameter returns a validation error

## How this service works

Decode 4, 5 and 6 band resistor colors into ohms, tolerance range and temperature coefficient, or encode an ohm value into the nearest E24 color bands

## Output

Returns a JSON object with the decoded mode (4/5/6 band or encode), the resistance as a human-readable string and numeric ohms value, tolerance percentage, temperature coefficient in ppm (for 6-band), the resistance range as [min, max] ohms, the color bands array, a data source label, and an optional note with caveats or 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": [
      "bands"
     ],
     "properties": {
      "bands": {
       "type": "string",
       "description": "Comma-separated colors, e.g. brown,black,red,gold"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "mode"
     ],
     "properties": {
      "mode": {
       "type": "string",
       "description": "Mode used"
      },
      "note": {
       "type": "string",
       "description": "Caveat or context for reading the result"
      },
      "bands": {
       "type": [
        "array",
        "null"
       ],
       "description": "Colour bands from left to right"
      },
      "source": {
       "type": "string",
       "description": "Data source the values come from"
      },
      "range_ohms": {
       "type": "array",
       "description": "Range ohms"
      },
      "resistance": {
       "type": "string",
       "description": "Resistance value in readable form"
      },
      "resistance_ohms": {
       "type": "number",
       "description": "Resistance ohms"
      },
      "tolerance_percent": {
       "type": "number",
       "description": "Tolerance, as a percentage"
      },
      "temperature_coefficient_ppm": {
       "description": "Temperature coefficient ppm"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-resistor-color-code-decoder-encoder-67de71ec/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)