SEO Keyword Search Volume & CPC

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "docs": "https://keywords.duoleads.com/docs",
  "hint": "Pay with x402 v2 (scheme exact, USDC on Base): sign accepts[0] of the PAYMENT-REQUIRED header and resend the same request with a PAYMENT-SIGNATURE header. Bad input is answered free with a 400.",
  "error": "payment_required",
  "price": "0.04 per call",
  "terms": "https://keywords.duoleads.com/terms",
  "method": "GET",
  "resource": "https://keywords.duoleads.com/v1/search-volume",
  "disclaimer": "Third-party estimates: Google Ads and Google Trends data obtained through DataForSEO. Provided as is, with no warranty of accuracy, completeness or availability. Not investment, financial, legal or any other professional advice. Terms: https://keywords.duoleads.com/terms"
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39",
    "amount": "40000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "lang": "en",
          "country": "us",
          "keywords": "phone,watch"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "total": 2,
          "units": "volume: average monthly Google searches; cpc: US dollars; competition: 0-1 (Google Ads); competitionLevel: LOW|MEDIUM|HIGH; difficulty: 0-100; intent: informational|navigational|commercial|transactional; trendYoyPct: % change vs a year ago",
          "market": {
            "country": "US",
            "fallback": false,
            "languageCode": "en",
            "locationCode": 2840,
            "locationName": "United States"
          },
          "source": "DataForSEO Labs (Google Ads data)",
          "missing": [],
          "results": [
            {
              "cpc": 4.63,
              "intent": "informational",
              "volume": 673000,
              "keyword": "phone",
              "difficulty": 54,
              "competition": 0.76,
              "trendYoyPct": 50,
              "competitionLevel": "HIGH"
            },
            {
              "cpc": 1.39,
              "intent": "transactional",
              "volume": 550000,
              "keyword": "watch",
              "difficulty": 54,
              "competition": 0.95,
              "trendYoyPct": 22,
              "competitionLevel": "HIGH"
            }
          ],
          "dataAsOf": "2026-09-16T03:19:59Z",
          "see_also": {
            "params": [
              "keywords",
              "locationCode",
              "languageCode"
            ],
            "reason": "More than 20 keywords? POST up to 100 to keyword-overview: the same fields in one $0.04 call.",
            "endpoint": "https://keywords.duoleads.com/v1/keyword-overview"
          },
          "request_id": "01KEXAMPLE0000000000000000"
        }
      }
    },
    "schema": {
      "type": "object",
      "$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": [
                "keywords"
              ],
              "properties": {
                "lang": {
                  "type": "string",
                  "default": "en",
                  "maxLength": 16,
                  "description": "Language code offered for the country (en, es, de, ...; en-US = en). Default: en when offered, else the country's main language."
                },
                "country": {
                  "type": "string",
                  "default": "us",
                  "pattern": "^[A-Za-z]{2}$",
                  "description": "ISO 3166-1 alpha-2 country code of a supported location (us, gb, de, ...; uk = gb). Default us."
                },
                "keywords": {
                  "type": "string",
                  "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."
                },
                "includeMonthly": {
                  "enum": [
                    "true",
                    "false"
                  ],
                  "type": "string",
                  "description": "true adds each keyword's monthly search volumes."
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog

2026-10-23 14:09Z

Last indexed by Roundhouse

2026-10-24 13:40Z

Last enriched (probe, favicon, geo)

2026-10-14 04:46Z

x402 version

2

Max timeout

120s

Liveness probe

HTTP 402