Keyword Search Volume, CPC & Difficulty

{
  "type": "object",
  "required": [
    "keyword",
    "country"
  ],
  "properties": {
    "month": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}$",
      "description": "Monthly snapshot in YYYY-MM format (min 2012-01, max the current month). Defaults to the current month."
    },
    "country": {
      "type": "string",
      "maxLength": 2,
      "minLength": 2,
      "description": "Two-letter ISO 3166-1 country code the metrics are returned for, e.g. 'US', 'UK', 'DE'."
    },
    "keyword": {
      "type": "string",
      "maxLength": 255,
      "minLength": 1,
      "description": "Keyword / search phrase to analyze, e.g. 'seo tools'."
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "properties": {
    "data": {
      "type": "object",
      "properties": {
        "cpc": {
          "type": "number",
          "description": "Estimated cost-per-click. Unit is unconfirmed from the vendor's own docs -- observed as the integer 779 for a highly competitive commercial keyword, consistent with hundredths of a US dollar (~$7.79) rather than whole dollars. Absent (not zero) on a niche keyword with too little data."
        },
        "trends": {
          "type": "array",
          "items": {
            "type": "number"
          },
          "description": "A monthly relative search-volume index (0-100 scale, 12 entries observed for a keyword with real volume). Empty array observed for a niche long-tail keyword with too little data."
        },
        "intents": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "Search intent tags, e.g. \"INFORMATIONAL\", \"COMMERCIAL\". Empty array observed for a niche long-tail keyword with too little data to classify."
        },
        "search_volume": {
          "type": "integer",
          "description": "Average monthly search volume for the keyword in the given country. Absent (not zero) when the keyword has too little data, as observed on a niche long-tail keyword."
        },
        "serp_features": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "SERP feature tags present for the keyword, e.g. \"PEOPLE_ALSO_ASK\", \"VIDEO_CAROUSEL\", \"AI_OVERVIEW\". Empty array observed for a niche long-tail keyword."
        },
        "number_of_results": {
          "type": "integer",
          "description": "Count of ranking results for the keyword, observed at 122. Absent (not zero) on a niche keyword with too little data."
        },
        "keyword_difficulty": {
          "type": "integer",
          "description": "0-100 scale, observed at 95 for a highly competitive keyword. Absent (not zero) on a niche keyword with too little data."
        },
        "competitive_density": {
          "type": "number",
          "description": "Advertiser competition density, observed at 3 for a highly competitive keyword. Absent (not zero) on a niche keyword with too little data."
        }
      },
      "description": "On a very low-volume/niche keyword (see the DE fixture), search_volume, cpc, keyword_difficulty, competitive_density, and number_of_results are ABSENT from this object entirely rather than present as 0 -- only intents/trends/serp_features are guaranteed present, and may themselves be empty arrays.",
      "additionalProperties": true
    },
    "type": {
      "type": "string",
      "description": "The literal string \"keyword_metrics\" on both real fixtures observed."
    }
  },
  "description": "The keyword-metrics record, as returned at routing.responseResultPath ($.output).",
  "additionalProperties": true
}