Api Endpoint

SEO Keyword Ideas and Difficulty

Keyword ideas for a seed keyword, each with Google search volume, CPC, competition, keyword difficulty and search intent; up to 100 ideas in one $0.04 call (Google Ads data). Use when you need related keywords to target. volume = avg monthly searches, cpc in USD, competition 0-1, difficulty 0-100. No ideas returns empty results (still charged). Bad input is free; upstream errors are not charged.

Open interactive test console

Offering

Provider: keywords.duoleads.com
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Business And Commerce
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://keywords.duoleads.com/v1/keyword-ideas
MIME type: application/json
First seen: 2026-10-16T01:50:24.663Z
Last seen: 2026-11-02T12:30:49.364Z
Tags: keyword-ideas, keyword-research, seo, search-volume, 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: Reachable
Latest latency: 230 ms
Average latency: 671 ms
HTTP status: 405
Last checked: 2026-11-02T18:33:14.270Z
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": [
        "POST"
      ]
    },
    "bodyType": {
      "type": "string",
      "enum": [
        "json",
        "form-data",
        "text"
      ]
    },
    "body": {
      "type": "object",
      "properties": {
        "keyword": {
          "type": "string",
          "minLength": 1,
          "maxLength": 80,
          "description": "Seed keyword to expand (at most 80 characters). Whitespace and control characters are normalised to single spaces and the seed to lower case; only a seed of 1 to 10 words and at most 80 characters can be expanded, so a seed that is then empty or longer is a free 400."
        },
        "limit": {
          "type": "integer",
          "minimum": 1,
          "maximum": 100,
          "description": "Maximum ideas to return. Defaults to 20."
        },
        "locationCode": {
          "type": "integer",
          "description": "Google Ads location code (geo target ID). Defaults to 2840 (United States); an unsupported code falls back to 2840 (United States, market.fallback)."
        },
        "languageCode": {
          "type": "string",
          "description": "Language code (2-letter). Defaults to en. An unsupported location falls back to 2840 (United States) with en (or the requested language if the United States offers it); a supported location with a language it does not offer uses that location's default language (en if offered). Either way market.fallback is true and market.warnings says what was used."
        },
        "country": {
          "type": "string",
          "description": "Optional ISO 3166-1 alpha-2 code or country name, used when locationCode is absent (uk = gb)."
        },
        "includeMonthly": {
          "type": "boolean",
          "description": "Add each idea's monthly search volumes (monthly[])."
        }
      },
      "required": [
        "keyword"
      ]
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object"
    }
  },
  "required": [
    "type"
  ]
}