Flight Search & Airfares
x402 Atlas provides real-time x402 analytics for autonomous APIs on Base. Track transactions, discover trends, and analyze the x402 ecosystem.
SearchLiveeip155:8453Exactvia cdp
FlightsFlight-searchAirfareTravelAirlines
Calls · 30d
94↓ 24%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$24.55
Verified settled volume
1,041 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
93
Calls · 30d
Upstream's own call count for this endpoint, not ours.
13
Unique payers · 30d
Last called 2026-09-24 10:01Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"hint": "This endpoint requires x402 payment. The price and payment options are in the PAYMENT-REQUIRED response header (x402 v2). Pay with an x402 client, then retry to receive the data.",
"llms": "https://flights.use.x402atlas.com/llms.txt",
"error": "payment_required",
"price": "$0.05 per call",
"method": "GET",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "50000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "50000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
}
],
"contact": {
"email": "support@x402atlas.com"
},
"openapi": "https://flights.use.x402atlas.com/openapi.json",
"resource": {
"url": "https://flights.use.x402atlas.com/search/:departure/:arrival",
"tags": [
"flights",
"flight-search",
"airfare",
"travel",
"airlines",
"airports",
"tickets",
"prices",
"schedules",
"carbon-emissions"
],
"mimeType": "application/json",
"description": "Flight search by departure and arrival airports in the URL — compare live itineraries, fares, schedules, stops and emissions across airlines, similar to Google Flights, as clean JSON.",
"serviceName": "Flight Search & Airfares"
},
"x402Version": 2,
"documentation": "https://flights.use.x402atlas.com/docs"
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.05USDC≈ $0.05 USD
on Base · exact scheme
Pay 0.05 USDC on Base to 0x8C12…Df1b2. The signed payment is good for 5 minutes.
- Paid to
- 0x8C12…Df1b2
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 50000 smallest units
50000units
on Polygon · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x8C12…Df1b2
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
50000units
on Arbitrum · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x8C12…Df1b2
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "50000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "50000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"arrival": "JFK",
"departure": "LHR"
}
},
"output": {
"type": "json",
"example": {
"currency": "USD",
"trip_type": "round_trip",
"arrival_id": "JFK",
"queried_at": "2026-07-28T10:00:00Z",
"return_date": "2026-08-18",
"best_flights": [
{
"type": "Round trip",
"price": 612,
"flights": [
{
"airline": "British Airways",
"duration": 475,
"travel_class": "Economy",
"flight_number": "EA 101",
"arrival_airport": {
"id": "JFK",
"name": "John F. Kennedy International Airport",
"time": "2026-08-11 13:25"
},
"departure_airport": {
"id": "LHR",
"name": "Heathrow Airport",
"time": "2026-08-11 10:30"
}
}
],
"total_duration": 475,
"departure_token": "opaque-return-selection-token",
"carbon_emissions": {
"this_flight": 410000,
"difference_percent": -8,
"typical_for_this_route": 445000
}
}
],
"departure_id": "LHR",
"travel_class": "economy",
"other_flights": [],
"outbound_date": "2026-08-11",
"price_insights": {
"price_level": "typical",
"lowest_price": 612,
"typical_price_range": [
540,
760
]
}
}
}
},
"tags": [
"flights",
"flight-search",
"airfare",
"travel",
"airlines",
"airports",
"tickets",
"prices",
"schedules",
"carbon-emissions"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"pathParams"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"pathParams": {
"type": "object",
"required": [
"departure",
"arrival"
],
"properties": {
"arrival": {
"type": "string",
"pattern": "^[A-Za-z]{3}(,[A-Za-z]{3}){0,4}$",
"description": "Arrival airport(s): one to five comma-separated IATA codes"
},
"departure": {
"type": "string",
"pattern": "^[A-Za-z]{3}(,[A-Za-z]{3}){0,4}$",
"description": "Departure airport(s): one to five comma-separated IATA codes"
}
}
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"queried_at",
"departure_id",
"arrival_id",
"outbound_date",
"trip_type",
"travel_class",
"currency",
"best_flights",
"other_flights"
],
"properties": {
"airports": {
"type": "array",
"items": {
"type": "object"
}
},
"currency": {
"type": "string"
},
"trip_type": {
"enum": [
"round_trip",
"one_way"
],
"type": "string"
},
"arrival_id": {
"type": "string"
},
"queried_at": {
"type": "string",
"format": "date-time"
},
"return_date": {
"type": "string",
"format": "date"
},
"best_flights": {
"type": "array",
"items": {
"type": "object",
"properties": {
"type": {
"type": "string"
},
"price": {
"type": "number"
},
"flights": {
"type": "array",
"items": {
"type": "object",
"properties": {
"airline": {
"type": "string"
},
"legroom": {
"type": "string"
},
"airplane": {
"type": "string"
},
"duration": {
"type": "integer",
"description": "Segment duration in minutes"
},
"overnight": {
"type": "boolean"
},
"extensions": {
"type": "array",
"items": {
"type": "string"
}
},
"airline_logo": {
"type": "string"
},
"travel_class": {
"type": "string"
},
"flight_number": {
"type": "string"
},
"arrival_airport": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"name": {
"type": "string"
},
"time": {
"type": "string",
"description": "Local date and time"
}
}
},
"departure_airport": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"name": {
"type": "string"
},
"time": {
"type": "string",
"description": "Local date and time"
}
}
},
"often_delayed_by_over_30_min": {
"type": "boolean"
}
}
}
},
"layovers": {
"type": "array",
"items": {
"type": "object"
}
},
"extensions": {
"type": "array",
"items": {
"type": "string"
}
},
"airline_logo": {
"type": "string"
},
"total_duration": {
"type": "integer",
"description": "Total itinerary duration in minutes"
},
"departure_token": {
"type": "string",
"description": "Pass back to retrieve return-flight choices"
},
"carbon_emissions": {
"type": "object"
}
}
}
},
"departure_id": {
"type": "string"
},
"travel_class": {
"type": "string"
},
"other_flights": {
"type": "array",
"items": {
"type": "object",
"properties": {
"type": {
"type": "string"
},
"price": {
"type": "number"
},
"flights": {
"type": "array",
"items": {
"type": "object",
"properties": {
"airline": {
"type": "string"
},
"legroom": {
"type": "string"
},
"airplane": {
"type": "string"
},
"duration": {
"type": "integer",
"description": "Segment duration in minutes"
},
"overnight": {
"type": "boolean"
},
"extensions": {
"type": "array",
"items": {
"type": "string"
}
},
"airline_logo": {
"type": "string"
},
"travel_class": {
"type": "string"
},
"flight_number": {
"type": "string"
},
"arrival_airport": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"name": {
"type": "string"
},
"time": {
"type": "string",
"description": "Local date and time"
}
}
},
"departure_airport": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"name": {
"type": "string"
},
"time": {
"type": "string",
"description": "Local date and time"
}
}
},
"often_delayed_by_over_30_min": {
"type": "boolean"
}
}
}
},
"layovers": {
"type": "array",
"items": {
"type": "object"
}
},
"extensions": {
"type": "array",
"items": {
"type": "string"
}
},
"airline_logo": {
"type": "string"
},
"total_duration": {
"type": "integer",
"description": "Total itinerary duration in minutes"
},
"departure_token": {
"type": "string",
"description": "Pass back to retrieve return-flight choices"
},
"carbon_emissions": {
"type": "object"
}
}
}
},
"outbound_date": {
"type": "string",
"format": "date"
},
"price_insights": {
"type": "object"
}
}
}
}
}
}
},
"category": "travel",
"routeTemplate": "/search/:departure/:arrival"
}
}Provenance
- Seen in the source catalog
- 2026-09-24 10:01Z
- Last indexed by Roundhouse
- 2026-09-25 10:50Z
- Last enriched (probe, favicon, geo)
- 2026-09-12 04:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Flight Search & Airfares and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Flight%20Search%20%26%20Airfares' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://flights.use.x402atlas.com/search/:departure/:arrival, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.