# StableTravel Seats.aero Routes

> StableTravel Seats.aero Routes is a paid API for AI agents from stabletravel.dev, paid per call via x402, $0.01/call, status healthy (last checked 2026-09-14, last successful call 2026-09-08).

Retrieves all award flight routes available under a specific mileage program via the Seats.aero data source

## Facts

- Endpoint: GET https://stabletravel.dev/api/seats-aero/routes
- Price: $0.01/call
- Payment: x402
- Status: healthy
- Last checked: 2026-09-14
- Last successful call: 2026-09-08
- Success rate: 100% of calls made through Zero
- Rating: 4.7 / 5 from 1 review
- Activations on Zero: 3
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stabletravel-seats-aero-routes-aab37628
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XRCYQOhThta_D6xA1y-pX

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability stabletravel-seats-aero-routes-aab37628
```

Example prompt: Can you pull up all the award flight routes available through the United mileage program on Seats.aero so I can see what origin and destination pairs I can search?

## When to prefer this

Use this endpoint when you need to enumerate all available award routes for a specific mileage program before searching for specific availability. It is the right first step when a user wants to understand which origin-destination pairs a frequent flyer program supports, especially before calling award availability search endpoints.

## Known failure modes

- Missing required 'source' query parameter returns a validation error
- Invalid or unsupported mileage program source returns empty results or an error
- Payment of 0.01 USDC not fulfilled causes a 402 Payment Required response
- Rate limiting or upstream Seats.aero API downtime may cause 5xx errors

## How this service works

List airline flight route pairs covered by a Seats.aero mileage program source. These are origin/destination airport pairs, not API routes.

## Output

Returns an array of route objects, each containing a route ID, the mileage program source, distance in miles, number of days out the route is searchable, origin and destination airport codes, and origin and destination regions.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "source"
     ],
     "properties": {
      "source": {
       "type": "string",
       "minLength": 1,
       "description": "Seats.aero mileage program source, such as united or aeroplan"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "array",
     "items": {
      "type": "object",
      "properties": {
       "ID": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "Source": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "Distance": {
        "anyOf": [
         {
          "type": "number"
         },
         {
          "type": "null"
         }
        ]
       },
       "NumDaysOut": {
        "anyOf": [
         {
          "type": "number"
         },
         {
          "type": "null"
         }
        ]
       },
       "OriginRegion": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "OriginAirport": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "DestinationRegion": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "DestinationAirport": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       }
      },
      "additionalProperties": {}
     },
     "$schema": "https://json-schema.org/draft/2020-12/schema"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": [
  {
   "ID": "route_123",
   "Source": "united",
   "Distance": 5685,
   "NumDaysOut": 365,
   "OriginRegion": "North America",
   "OriginAirport": "SFO",
   "DestinationRegion": "Europe",
   "DestinationAirport": "FRA"
  }
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stabletravel-seats-aero-routes-aab37628/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stabletravel.dev](https://www.zero.xyz/host/stabletravel.dev/llms.txt)