Element Codes Reference (USDA SNOTEL and Climate Stations)

usdaawdb/elements-reference

Returns the reference list of NRCS measurement elements (about 116): code (SNWD, WTEQ, PREC, TAVG, SMS and others), name, what is measured, and the stored, English and metric units. Use the codes with station-data. Takes no input; the answer is about 29 KB.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

USDA NRCS

Source: USDA Natural Resources Conservation Service (NRCS), National Water and Climate Center, AWDB REST service. Data are provisional and subject to revision. Served by Eden Engine; not an official USDA product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "usdaawdb/elements-reference" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "usdaawdb/elements-reference" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "usdaawdb/elements-reference", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "usdaawdb/elements-reference", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

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Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 25, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "elements"
  ],
  "properties": {
    "elements": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "code",
          "name"
        ],
        "properties": {
          "code": {
            "type": "string",
            "description": "Element code."
          },
          "name": {
            "type": "string",
            "description": "Element name."
          },
          "description": {
            "type": "string",
            "description": "Longer description; absent for some codes."
          },
          "functionCode": {
            "type": "string",
            "description": "Function code."
          },
          "dataPrecision": {
            "type": "integer",
            "description": "Decimal places."
          },
          "metricUnitCode": {
            "type": "string",
            "description": "Metric unit."
          },
          "storedUnitCode": {
            "type": "string",
            "description": "Unit values are stored in."
          },
          "englishUnitCode": {
            "type": "string",
            "description": "English unit."
          },
          "physicalElementName": {
            "type": "string",
            "description": "What is measured."
          }
        },
        "description": "One element.",
        "additionalProperties": true
      },
      "description": "All elements."
    }
  },
  "description": "The reference list.",
  "additionalProperties": true
}