crawl4ai_web_answer $0.002688 per call

Web search answer with sources and citations (research). Answers a question or a whole agent prompt (up to 4,000 characters) from the web's current top results, with the pages it drew on. Ask for JSON in the question, or pass a JSON Schema, and the answer is JSON of that shape. answer.source says whether the text is Google's own answer (google_ai_mode, google_ai_overview) or written from the pages (crawl4ai). answered is false, and free, when the pages hold no answer. Experimental: fields may be added. (Crawl4AI · Open web & SEO data)

For AI agents: call crawl4ai_web_answer
POST https://toll402.dev/v1/p/crawl4ai.web.answer
{
 "q": "who founded stripe"
}
Answers 402 with x402 payment requirements; pay with any x402 client (@x402/fetch, x402 for Python, toll402-client, toll402-mcp) or send a prepaid-credits key as x-toll402-key (https://toll402.dev/credits). Paid per call via x402 (USDC on Base) or with a prepaid-credits key (x-toll402-key, card at /credits); charged only on success. Start at /llms.txt or connect the MCP server: npx -y toll402-mcp · remote https://toll402.dev/mcp.

Input schema

{
 "type": "object",
 "properties": {
  "q": {
   "type": "string",
   "description": "the question or prompt, up to 4,000 characters; say the shape you want inside it, e.g. 'answer with JSON only: {...}'",
   "examples": [
    "who founded stripe"
   ]
  },
  "schema": {
   "type": "string",
   "description": "a JSON Schema object as a JSON string, up to 4,000 bytes; the answer is then JSON of exactly that shape (parse answer.text)"
  },
  "deep": {
   "type": "integer",
   "description": "1 reads pages and writes an answer when the web has none; 0 returns only the web's own direct answer, else answered false",
   "default": 1,
   "enum": [
    0,
    1
   ]
  },
  "gl": {
   "type": "string",
   "description": "search country, e.g. us"
  },
  "hl": {
   "type": "string",
   "description": "search language, e.g. en"
  },
  "nocache": {
   "type": "integer",
   "description": "1 skips every cache",
   "enum": [
    1
   ]
  }
 },
 "additionalProperties": true,
 "required": [
  "q"
 ]
}

MCP

{"mcpServers":{"toll402":{"command":"npx","args":["-y","toll402-mcp"],"env":{"TOLL402_WALLET_KEY":"0x..."}}}}

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