Answer a question

GEThttps://api.crawl4ai.com/answer

Ask a question, get a direct answer. Some questions won't have one yet — then answered is false (use /search for links). Ask for the shape you want in the question itself — "answer with JSON only: {…}", "as a markdown table", "quote the source and give its URL" — or pass a schema. Add deep=0 for a direct answer only when one is readily available (no page reading). Experimental: the shape may still change.

1 credit an answer found directly3 credits when our model writes it

Status

experimental

Request

curl "https://api.crawl4ai.com/answer?q=why+is+the+sky+blue" \
  -H "Authorization: Bearer sk_live_..."

{
  "answered": true,
  "answer": {
    "text": "The sky is blue because Earth's atmosphere scatters sunlight…",
    "source": "crawl4ai",
    "sources": [ { "title": "NASA", "url": "https://…" } ]
  },
  "query": "why is the sky blue",
  "experimental": true
}

Query parameters

`q` string	The question, or a whole prompt (max 4,000 characters). A long prompt is turned into a search query for you.
`schema` object	A JSON Schema the answer must match; the answer is then JSON of exactly that shape.
`deep` 0 \| 1	Default `1` Default 1: a direct answer from the web's top results, reading a couple of pages when needed. `0`: only an answer that is readily available.

Response

Field	Description
`answer.text`	The answer. When the question asked for JSON, or a `schema` was given, it is JSON as a string: parse it.
`answer.source`	`google_ai_overview` or `google_ai_mode`: the web's own direct answer, word for word. `crawl4ai`: our model wrote it from the pages.
`answer.sources`	The pages it drew on, `{title, url}`; present when there are any.
`query`	The search query used for the question.