ai_answers

POST https://geondex.com/api/v1/answers

• Cost: 2–64 credits / engine, by model
• MCP tool: ai_answers
• Auth: Authorization: Bearer gx_… (see Authentication)
• Try it: Open ai_answers in the playground

The full answer Perplexity, ChatGPT, Claude, Gemini and Grok each give to PROMPT, with the sources each one cited, in one normalized shape. No brand check: use check_visibility for that. Useful to see how engines frame a topic before writing content, or to read what they say about a competitor. Credits depend on the model (see models); timeouts are free. Takes up to 30 s (45 s with a premium model).

Not available on every deployment: returns 404 not_found when this server is not configured for it. GET /me lists what is configured.

RequestCopy Anchor Link

Request body (JSON)Copy Anchor Link

• prompt · string · required — The question to ask, e.g. 'which table tennis blade suits a beginner?'. 3–2,000 characters
• engines · ("perplexity" | "openai" | "claude" | "gemini" | "grok")[] · optional — Subset of engines. Default: all five. Each engine that answers costs its model's credits (see models). 1–5 items. Each one of perplexity, openai, claude, gemini, grok
• models · object · optional — Model per engine. Default = the model the engine's free consumer app uses, or a fast model from the same provider where that one is too slow. perplexity: sonar (Perplexity default, 2 credits); openai: gpt-5.6-luna (ChatGPT Free default, 8 credits); openai: gpt-5.6-sol (ChatGPT Plus default, 64 credits); claude: claude-sonnet-5-5 (Claude Sonnet 5.5, current Sonnet, 15 credits, default); claude: claude-opus-5-5 (Claude Opus 5.5, 27 credits); gemini: gemini-3.5-flash (Gemini 3.5 Flash, low thinking, 16 credits, default); grok: grok-4.3 (Grok 4.3, fast, 16 credits, default)

Example requestCopy Anchor Link

curl -s https://geondex.com/api/v1/answers -H "Authorization: Bearer gx_YOUR_KEY" -H "content-type: application/json" -d '{"prompt":"which table tennis blade suits a beginner?","engines":["perplexity","openai"]}'

ResponseCopy Anchor Link

200 with the envelope every tool returns: a one-line summary, the full data, and credits: { charged, remaining }. On a free call charged is 0 and remaining is null.

Fields of dataCopy Anchor Link

• prompt · string
• engines · object[]
• engines[].engine · "perplexity" | "openai" | "claude" | "gemini" | "grok"
• engines[].status · "ok" | "timeout" | "error"
• engines[].model · string
• engines[].answer · string | null — The engine's full answer text (up to 8 KB); null on failure
• engines[].citations · object[]
• engines[].citations[].url · string
• engines[].citations[].host · string
• engines[].citations[].title · string | null
• engines[].citations[].position · number
• engines[].durationMs · number
• engines[].error · string · optional

Example responseCopy Anchor Link

Real-shaped, checked against the output schema by a test. Long lists are shortened.

{
  "summary": "2 of 2 engines answered; 5 distinct sources cited.",
  "data": {
    "prompt": "which table tennis blade suits a beginner?",
    "engines": [
      {
        "engine": "perplexity",
        "status": "ok",
        "model": "sonar",
        "answer": "For a beginner, an all-round wooden blade such as the Stiga Allround Classic or the Butterfly Primorac gives control while you learn strokes. Avoid carbon blades at first: they are fast and forgive little.",
        "citations": [
          {
            "url": "https://ttsensei.com/blades/beginner",
            "host": "ttsensei.com",
            "title": "Best beginner blades",
            "position": 1
          },
          {
            "url": "https://www.reddit.com/r/tabletennis/comments/abc",
            "host": "reddit.com",
            "title": null,
            "position": 2
          },
          {
            "url": "https://revspin.net/blade/",
            "host": "revspin.net",
            "title": "Blade ratings",
            "position": 3
          }
        ],
        "durationMs": 4210
      },
      {
        "engine": "openai",
        "status": "ok",
        "model": "gpt-5.6-luna",
        "answer": "Choose a 5-ply all-wood blade with an ALL or ALL+ speed rating. Popular picks are the Stiga Allround Classic and the Yasaka Sweden Extra.",
        "citations": [
          {
            "url": "https://www.megaspin.net/blades/",
            "host": "megaspin.net",
            "title": "Allround blades",
            "position": 1
          },
          {
            "url": "https://ttsensei.com/blades/beginner",
            "host": "ttsensei.com",
            "title": "Best beginner blades",
            "position": 2
          },
          {
            "url": "https://tabletennis11.com/blades",
            "host": "tabletennis11.com",
            "title": null,
            "position": 3
          }
        ],
        "durationMs": 6870
      }
    ]
  },
  "credits": {
    "charged": 10,
    "remaining": 490
  }
}

ErrorsCopy Anchor Link

Every error has the body {"error":{"code":"…","message":"…"}} and is not charged.

Every error.code and what to do about it: Errors & rate limits.