Api Endpoint

SEO Keyword Search Volume, CPC

Google search volume, CPC, competition, keyword difficulty and intent for up to 20 comma-separated keywords in one $0.04 GET (Google Ads data). Use when you need monthly search volume for a few keywords in a country. volume = avg monthly searches, cpc in USD, competition 0-1, difficulty 0-100. Up to 100 keywords for the same $0.04: POST /v1/keyword-overview. Keywords without data are listed in missing (still charged). Bad input is free; upstream errors are not charged.

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Offering

Provider: keywords.duoleads.com
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: Web Search Research
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://keywords.duoleads.com/v1/search-volume
MIME type: application/json
First seen: 2026-10-16T01:50:24.663Z
Last seen: 2026-11-02T06:01:32.722Z
Tags: search-volume, keyword-research, seo, cpc, keyword-difficulty

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.04 USDC
Atomic price: 40000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "40000",
    "payTo": "0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39"
  }
]

Observed health

Status: Healthy
Latest latency: 45 ms
Average latency: 749 ms
HTTP status: 402
Last checked: 2026-11-02T06:01:32.717Z
Reachability: 100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "keywords": {
          "type": "string",
          "minLength": 1,
          "maxLength": 2000,
          "description": "1-20 keywords, comma-separated (empty segments are ignored); each at most 80 characters. Whitespace and control characters are normalised to single spaces and keywords to lower case; a keyword that is then empty, over 10 words or over 80 characters is not looked up and is listed in missing; none left to look up is a free 400."
        },
        "country": {
          "type": "string",
          "pattern": "^[A-Za-z]{2}$",
          "default": "us",
          "description": "ISO 3166-1 alpha-2 country code of a supported location (us, gb, de, ...; uk = gb). Default us."
        },
        "lang": {
          "type": "string",
          "maxLength": 16,
          "pattern": "^[A-Za-z]{2,3}([-_][A-Za-z0-9]{2,8})*$",
          "description": "Language code offered for the country (en, es, de, ...; en-US = en). Default: en when offered, else the country's main language."
        },
        "includeMonthly": {
          "type": "string",
          "enum": [
            "true",
            "false"
          ],
          "description": "true adds each keyword's monthly search volumes."
        }
      },
      "required": [
        "keywords"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "country": {
              "default": "us",
              "description": "ISO 3166-1 alpha-2 country code of a supported location (us, gb, de, ...; uk = gb). Default us.",
              "pattern": "^[A-Za-z]{2}$",
              "type": "string"
            },
            "includeMonthly": {
              "description": "true adds each keyword's monthly search volumes.",
              "enum": [
                "true",
                "false"
              ],
              "type": "string"
            },
            "keywords": {
              "description": "1-20 keywords, comma-separated (empty segments are ignored); each at most 80 characters. Whitespace and control characters are normalised to single spaces and keywords to lower case; a keyword that is then empty, over 10 words or over 80 characters is not looked up and is listed in missing; none left to look up is a free 400.",
              "maxLength": 2000,
              "type": "string"
            },
            "lang": {
              "default": "en",
              "description": "Language code offered for the country (en, es, de, ...; en-US = en). Default: en when offered, else the country's main language.",
              "maxLength": 16,
              "type": "string"
            }
          },
          "required": [
            "keywords"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}