Keywords

Keyword ideas from seed keywords

POST/keyword-ideas
from $0.05/calljson responserest · mcp
01// about this endpoint

Expands up to 200 seed keywords into related keyword ideas, each with search volume, CPC, competition and keyword difficulty (difficulty is at keyword_properties.keyword_difficulty in each row; volume and CPC at keyword_info). Ideas come from category-level expansion, so sorting by search volume surfaces unrelated head terms; the default order is relevance, keep it for topical work and filter instead. Cost scales with rows returned, so keep `limit` at the default 100 unless the task genuinely needs more (hard cap 1000).

02// code samples

Call it over REST

Authenticate with a bearer token against https://api.superagnt.com. Swap the placeholders for your key and parameter values.

curlbash
curl -s -X POST "https://api.superagnt.com/keyword-ideas" \
  -H "Authorization: Bearer <YOUR_AGNTDATA_API_KEY>" \
  -H "Content-Type: application/json" \
  -d '{ "keywords": [] }'
03// give it to your agent

Copy-paste prompt

Paste this into a coding agent. It connects the superagnt MCP server, finds the tool data_seo_keyword_ideas, and runs a first call — with the REST fallback if MCP is unavailable.

agent prompttext
You are wiring up the superagnt "SEO" API to use this endpoint: Keyword ideas from seed keywords.

1. CONNECT over MCP (preferred). No token to paste either way.
   On Claude (claude.ai, the desktop app, or Claude Code signed in with a Claude
   account), the server is a connector: give the user this link, they click Add
   and approve:
     https://claude.ai/customize/connectors/yours?modal=add-custom-connector&connectorName=superagnt&connectorUrl=https%3A%2F%2Fmcp.superagnt.com%2Fmcp&open_in_browser=1
   Any other MCP client (or Claude Code signed in with an API key): add the server
   and let the client run the browser sign-in:
     claude mcp add --scope user --transport http superagnt https://mcp.superagnt.com/mcp
     claude mcp login superagnt
   MCP endpoint: https://mcp.superagnt.com/mcp
   After connecting, the tool you want is named exactly:
     data_seo_keyword_ideas
   Call agnt_tools_search or agnt_tools_list_enabled to confirm it is available.

2. REST fallback (if you are not using MCP):
     POST https://api.superagnt.com/keyword-ideas
     Header: Authorization: Bearer <YOUR_AGNTDATA_API_KEY>
   Required parameters:
    - keywords (array, required) — Seed keywords to expand (1-200).
   Optional parameters:
    - location_code (integer, optional) — Geo target as a location code. Default 2840 (United States).
    - language_code (string, optional) — Two-letter language code. Default 'en'.
    - limit (integer, optional) — Max keyword ideas to return. Default 100. Cost scales with rows, so raise only when needed.
    - offset (integer, optional) — Pagination offset.
    - filters (array, optional) — Optional filter expression as [field, operator, value] triples joined by 'and'/'or'. Operators: =, <>, <, <=, >, >=, in, not_in, like, not_like (use %% wildcards with like). Recipes: [["keyword_info.search_volume",">",100]] · keep only on-topic ideas: [["keyword","like","%deliverability%"]] · combine: [["keyword_info.search_volume",">",100],"and",["keyword_properties.keyword_difficulty","<",40]].
    - order_by (array, optional) — Sort rules, e.g. ["keyword_info.search_volume,desc"].

3. COST & KEY. This endpoint is metered — pricing varies by request, from $0.05 per call. Only successful calls are charged.
   Get a superagnt API key at https://app.superagnt.com.

4. TEST. Connect the server (or set the key), discover the tool
   (data_seo_keyword_ideas), run one minimal call with just the required parameters,
   and report back the shape of the JSON response (top-level fields).

Reference (machine-readable variant): https://www.superagnt.com/docs/apis/seo/endpoints/keyword_ideas.md
mcp tool definitionjson
{
  "name": "keyword_ideas",
  "description": "Expands up to 200 seed keywords into related keyword ideas, each with search volume, CPC, competition and keyword difficulty (difficulty is at keyword_properties.keyword_difficulty in each row; volume and CPC at keyword_info). Ideas come from category-level expansion, so sorting by search volume surfaces unrelated head terms; the default order is relevance, keep it for topical work and filter instead. Cost scales with rows returned, so keep `limit` at the default 100 unless the task genuinely needs more (hard cap 1000).",
  "parameters": {
    "type": "object",
    "properties": {
      "keywords": {
        "type": "array",
        "items": {
          "type": "string"
        },
        "maxItems": 200,
        "description": "Seed keywords to expand (1-200)."
      },
      "location_code": {
        "type": "integer",
        "description": "Geo target as a location code. Default 2840 (United States).",
        "default": 2840
      },
      "language_code": {
        "type": "string",
        "description": "Two-letter language code. Default 'en'.",
        "default": "en"
      },
      "limit": {
        "type": "integer",
        "minimum": 1,
        "maximum": 1000,
        "default": 100,
        "description": "Max keyword ideas to return. Default 100. Cost scales with rows, so raise only when needed."
      },
      "offset": {
        "type": "integer",
        "minimum": 0,
        "description": "Pagination offset."
      },
      "filters": {
        "type": "array",
        "items": {},
        "description": "Optional filter expression as [field, operator, value] triples joined by 'and'/'or'. Operators: =, <>, <, <=, >, >=, in, not_in, like, not_like (use %% wildcards with like). Recipes: [[\"keyword_info.search_volume\",\">\",100]] · keep only on-topic ideas: [[\"keyword\",\"like\",\"%deliverability%\"]] · combine: [[\"keyword_info.search_volume\",\">\",100],\"and\",[\"keyword_properties.keyword_difficulty\",\"<\",40]]."
      },
      "order_by": {
        "type": "array",
        "items": {
          "type": "string"
        },
        "description": "Sort rules, e.g. [\"keyword_info.search_volume,desc\"]."
      }
    },
    "required": [
      "keywords"
    ]
  }
}
04// parameters
NameInTypeRequiredDescription
keywordsbodyarrayrequiredSeed keywords to expand (1-200).
location_codebodyintegeroptionalGeo target as a location code. Default 2840 (United States).
language_codebodystringoptionalTwo-letter language code. Default 'en'.
limitbodyintegeroptionalMax keyword ideas to return. Default 100. Cost scales with rows, so raise only when needed.
offsetbodyintegeroptionalPagination offset.
filtersbodyarrayoptionalOptional filter expression as [field, operator, value] triples joined by 'and'/'or'. Operators: =, <>, <, <=, >, >=, in, not_in, like, not_like (use %% wildcards with like). Recipes: [["keyword_info.search_volume",">",100]] · keep only on-topic ideas: [["keyword","like","%deliverability%"]] · combine: [["keyword_info.search_volume",">",100],"and",["keyword_properties.keyword_difficulty","<",40]].
order_bybodyarrayoptionalSort rules, e.g. ["keyword_info.search_volume,desc"].
05// responses

Keyword ideas with volume, CPC, competition and difficulty in `result[0].items`.

200json
{
  "type": "object"
}
06// pricing
from $0.05per successful request

Metered endpoint — the exact cost depends on the request. Credits are deducted per successful call; failed requests (4xx/5xx) are not charged.

Get started at app.superagnt.com.

08// more from SEO

start calling

Point your client at https://mcp.superagnt.com/mcp and your agent has this endpoint, plus every other source on one balance.

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