x402engine.app
x402engine — Search flights via Google Flights (SerpApi). Returns best flights, prices, airlines, and price insights.
Offering
- Provider
- x402engine.app
- Method
- GET
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Location And Travel
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://x402engine.app/api/travel/flights- MIME type
- application/json
- First seen
- 2026-10-16T01:53:06.460Z
- Last seen
- Tags
- None supplied
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.02 USDC
Atomic price: 20000 · Network: eip155:8453 · Asset: USDC · Scheme: exact - Payment option 2
- 20000000000000000 atomic units
Atomic price: 20000000000000000 · Network: eip155:4326 · Asset: 0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7 · Scheme: exact - Payment option 3
- 0.02 USDC
Atomic price: 20000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "20000",
"payTo": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629"
},
{
"scheme": "exact",
"network": "eip155:4326",
"asset": "0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7",
"amount": "20000000000000000",
"payTo": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629"
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "20000",
"payTo": "Gzehfseq1k9AcHFSoV7qHmDGQx92nLMw78XXdqVWQQWa"
}
]Observed health
- Status
- Healthy
- Latest latency
- 116 ms
- Average latency
- 454 ms
- HTTP status
- 402
- Last checked
- Reachability
- 100% over 12 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"GET"
]
},
"queryParams": {
"type": "object",
"properties": {
"origin": {
"type": "string",
"description": "Departure airport IATA code",
"example": "JFK"
},
"destination": {
"type": "string",
"description": "Arrival airport IATA code",
"example": "LAX"
},
"departureDate": {
"type": "string",
"description": "Departure date (YYYY-MM-DD); today or a future date",
"example": "2026-11-10"
},
"returnDate": {
"type": "string",
"description": "Return date for round trips (YYYY-MM-DD)",
"example": "2026-11-13"
},
"adults": {
"type": "string",
"description": "Number of adult passengers",
"default": "1"
},
"children": {
"type": "string",
"description": "Number of children"
},
"travelClass": {
"type": "string",
"description": "1=Economy, 2=Premium Economy, 3=Business, 4=First",
"default": "1"
},
"stops": {
"type": "string",
"description": "0=Any stops, 1=Nonstop, 2=Up to 1 stop, 3=Up to 2 stops"
},
"maxPrice": {
"type": "string",
"description": "Maximum price filter"
},
"currency": {
"type": "string",
"description": "Currency code (e.g. USD, EUR)",
"default": "USD"
}
},
"required": [
"origin",
"destination",
"departureDate"
],
"additionalProperties": false
}
},
"required": [
"type",
"method"
],
"additionalProperties": false
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"input": {
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"GET"
]
},
"queryParams": {
"type": "object",
"properties": {
"origin": {
"type": "string",
"description": "Departure airport IATA code",
"example": "JFK"
},
"destination": {
"type": "string",
"description": "Arrival airport IATA code",
"example": "LAX"
},
"departureDate": {
"type": "string",
"description": "Departure date (YYYY-MM-DD); today or a future date",
"example": "2026-11-10"
},
"returnDate": {
"type": "string",
"description": "Return date for round trips (YYYY-MM-DD)",
"example": "2026-11-13"
},
"adults": {
"type": "string",
"description": "Number of adult passengers",
"default": "1"
},
"children": {
"type": "string",
"description": "Number of children"
},
"travelClass": {
"type": "string",
"description": "1=Economy, 2=Premium Economy, 3=Business, 4=First",
"default": "1"
},
"stops": {
"type": "string",
"description": "0=Any stops, 1=Nonstop, 2=Up to 1 stop, 3=Up to 2 stops"
},
"maxPrice": {
"type": "string",
"description": "Maximum price filter"
},
"currency": {
"type": "string",
"description": "Currency code (e.g. USD, EUR)",
"default": "USD"
}
},
"required": [
"origin",
"destination",
"departureDate"
],
"additionalProperties": false
}
},
"required": [
"type",
"method"
],
"additionalProperties": false
}
},
"required": [
"input"
]
}