Keyword ideas from seed keywords

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

1. CONNECT over MCP (preferred). Add the superagnt MCP server, then let the client
   run OAuth on first tool call — no token to paste:
     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.agntdata.dev/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 priced per call in credits, and each successful response reports its own cost in its meta.costCents field. Only successful calls are charged.
   Get an agntdata API key at https://app.agntdata.dev.

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://superagnt.com/docs/apis/seo/endpoints/keyword_ideas.md

{
  "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"
    ]
  }
}