serpapi_x_google-flights $0.01875 per call

Google Flights itineraries by route and date — prices. Live Google Flights results — best/other flights, price insights, for a route and date (SerpApi · Google Keyword Data)

For AI agents: call serpapi_x_google-flights
POST https://toll402.dev/v1/p/serpapi.x.google-flights
{
 "engine": "google_flights",
 "departure_id": "CDG",
 "arrival_id": "AUS",
 "outbound_date": "2026-09-01",
 "type": "2",
 "currency": "USD"
}
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": {
  "engine": {
   "type": "string",
   "examples": [
    "google_flights"
   ]
  },
  "departure_id": {
   "type": "string",
   "description": "origin airport/location code",
   "examples": [
    "CDG"
   ]
  },
  "arrival_id": {
   "type": "string",
   "description": "destination airport/location code",
   "examples": [
    "AUS"
   ]
  },
  "outbound_date": {
   "type": "string",
   "description": "YYYY-MM-DD",
   "examples": [
    "2026-09-01"
   ]
  },
  "type": {
   "type": "string",
   "description": "1 round trip (default) | 2 one way | 3 multi-city",
   "examples": [
    "2"
   ]
  },
  "return_date": {
   "type": "string",
   "description": "YYYY-MM-DD, required when type=1"
  },
  "currency": {
   "type": "string",
   "examples": [
    "USD"
   ]
  }
 },
 "additionalProperties": true,
 "required": [
  "engine",
  "departure_id",
  "arrival_id",
  "outbound_date"
 ],
 "description": "answers arrive in `best_flights` and `other_flights`; `price_insights` gives the typical price range."
}

MCP

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

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