Find related keywords

Expand a seed keyword using the 'searches related to' element, each with search volume, CPC, competition, keyword difficulty, and search intent for SEO and content research.

Pricing — $$ · min $0.05

Minimum 50 credits ($0.05) per call. Records returned above the minimum bill 1 credit ($0.001) each.

Authorization

bearerAuth

AuthorizationBearer <token>

UnifAPI API key. Provider credentials are managed by UnifAPI.

In: header

Pin the API version an integration was built against (date-based, e.g. 2026-07-01). Omit to use the current version. Public URL paths stay stable and unversioned; breaking changes ship under a new dated version and are announced with Deprecation and Sunset response headers. The served version is echoed in every response's Unifapi-Version header. Policy: https://unifapi.com/versioning.md

Idempotency-Key?string

Client-supplied unique key that makes a write request safe to retry. If a request with the same key was already processed, the original response is replayed (with Idempotency-Replayed: true) instead of executing — and billing — again. Send a fresh UUID per logical operation. Best-effort with a 24h window.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

keyword*string

Seed keyword. Returns keywords from Google's 'searches related to' element.

location?|

Search location as a country code/name, DataForSEO location code, or full location name. Defaults to us.

language?string

Search language as an ISO code or full language name. Defaults to en.

depth?integer

Keyword search depth, 0-4. Higher depth returns more keywords (1≈8, 2≈72, 3≈584, 4≈4680). Defaults to 1.

limit?integer

Maximum number of related keywords to return. Defaults to 100.

offset?integer

Number of related keywords to skip from the start of the results.

ignore_synonyms?boolean

When true, exclude highly similar keywords and return only core keywords.

include_serp_info?boolean

When true, include SERP data (result count and SERP feature types) for each keyword. Can add source cost.

include_seed_keyword?boolean

When true, include metrics for the seed keyword in the response.

view?string

Response Body

`application/json`

curl -X POST "https://example.com/seo/keywords/related" \  -H "Content-Type: application/json" \  -d '{    "keyword": "string"  }'

{  "request_id": "string",  "data": {    "seed_keyword": "string",    "location": "string",    "language": "string",    "view": "summary",    "total_count": 0,    "offset": 0,    "results": [      {        "keyword": "string",        "search_volume": 0,        "cpc": 0,        "competition": 0,        "competition_level": "string",        "keyword_difficulty": 0,        "search_intent": "string",        "search_intent_alternatives": [          "string"        ],        "low_top_of_page_bid": 0,        "high_top_of_page_bid": 0,        "words_count": 0,        "detected_language": "string",        "search_volume_trend": {          "monthly": 0,          "quarterly": 0,          "yearly": 0        },        "serp_item_types": [          "string"        ],        "serp_results_count": 0,        "monthly_searches": [          {            "year": 0,            "month": 0,            "search_volume": 0          }        ],        "last_updated_at": "string",        "depth": 0,        "related_keywords": [          "string"        ]      }    ]  },  "billing": {    "credits_charged": 0,    "records_charged": 0,    "balance_remaining": 0,    "truncated_due_to_balance": true  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

Find related keywords

Authorization

Header Parameters

Request Body

Response Body

200application/json

400application/json

401application/json

402application/json

404application/json

429application/json

500application/json

502application/json

503application/json

`application/json`

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