Fake airlines API

6 airlines from the Flights API, a fake flight booking API. Carriers.

Reads with filters, sorting, search and relations; writes that answer like a real server and stay in your session token. Same ids on every build. Free, no key, CORS open.

Connect

List: https://api.sondahub.com/v1/flights/airlines
One record: https://api.sondahub.com/v1/flights/airlines/{id}
OpenAPI 3: https://api.sondahub.com/v1/flights/openapi.json
GraphQL: https://api.sondahub.com/v1/flights/graphql
JSON file: https://api.sondahub.com/data/flights/airlines.json
MCP: https://api.sondahub.com/mcp · list_records

The first three airlines

curl "https://api.sondahub.com/v1/flights/airlines?limit=3"

Sample records

Records 1 to 3 of 6, exactly as GET /v1/flights/airlines/{id} answers them. The data file holds all of them.

[
  {
    "id": 1,
    "created_at": "2023-12-06T12:00:00Z",
    "updated_at": "2023-12-06T12:00:00Z",
    "code": "SH",
    "name": "Sondahub Air",
    "alliance": null,
    "fleet_size": 117
  },
  {
    "id": 2,
    "created_at": "2023-12-06T12:00:00Z",
    "updated_at": "2023-12-06T12:00:00Z",
    "code": "SK",
    "name": "Skyway Airlines",
    "alliance": null,
    "fleet_size": 83
  },
  {
    "id": 3,
    "created_at": "2023-12-06T12:00:00Z",
    "updated_at": "2023-12-06T12:00:00Z",
    "code": "AT",
    "name": "Atlas Wings",
    "alliance": "Meridian Alliance",
    "fleet_size": 192
  }
]

Fields

Field	Type	Notes
`id`read-only	int	Assigned by the server. Seed records keep their ids across restarts; records you create continue after the seed.
`created_at`read-only	datetime	When the record was created (ISO 8601, UTC).
`updated_at`read-only	datetime	When the record last changed.
`code`required	string
`name`required	string
`alliance`	string
`fleet_size`	int

Relations: flights → the flights whose airline_id is this airline. Use ?expand=flights to embed them, or the nested routes.

Endpoints

GET/v1/flights/airlinesA page, with every filter, sort, search, field and expand option.

POST/v1/flights/airlinesCreate one: 201 with the record, its id, a Location header and the session token that keeps it; 422 names each field that is wrong.

GET/v1/flights/airlines/{id}One record, with an ETag; If-None-Match earns a 304.

PATCH/v1/flights/airlines/{id}Change the fields you send.

PUT/v1/flights/airlines/{id}Replace the record; required fields must all be there.

DELETE/v1/flights/airlines/{id}Answers 200 with what was removed (a real server’s 204 lives at /v1/utils/status/204); gone for the session.

GET/v1/flights/airlines/{id}/flightsIts flights, as a page with all the list options.

Try it

List with a filter

curl "https://api.sondahub.com/v1/flights/airlines?fleet_size_gte=1&limit=3"

One record

curl https://api.sondahub.com/v1/flights/airlines/1

Its flights

curl "https://api.sondahub.com/v1/flights/airlines/1/flights?limit=5"

Create

curl -i -X POST https://api.sondahub.com/v1/flights/airlines \
  -H "Content-Type: application/json" \
  -d '{"code":"SH","name":"A name"}'

Read it back: newest first (send the session token)

curl "https://api.sondahub.com/v1/flights/airlines?sort=-id&limit=3" \
  -H "X-Sondahub-Session: THE_TOKEN_FROM_THE_CREATE"

Change one field

curl -X PATCH https://api.sondahub.com/v1/flights/airlines/1 \
  -H "Content-Type: application/json" \
  -d '{"fleet_size":2}'

Delete the one you created

curl -X DELETE https://api.sondahub.com/v1/flights/airlines/7 \
  -H "X-Sondahub-Session: THE_TOKEN_FROM_THE_CREATE"

Query recipes

Every list option works on airlines; these are ready to paste. All the options.

What	Request
Page 2, 50 at a time (of 6)	/v1/flights/airlines?page=2&limit=50
Fleet size between two values, largest first	/v1/flights/airlines?fleet_size_gte=1&fleet_size_lte=500&sort=-fleet_size
Newest first by created at	/v1/flights/airlines?sort=-created_at&limit=5
Code contains “sh”	/v1/flights/airlines?code_like=sh
Full-text search	/v1/flights/airlines?q=sh
Only some fields	/v1/flights/airlines?fields=id,code&limit=5
Its flights (nested route)	/v1/flights/airlines/1/flights?limit=5
Just the count	/v1/flights/airlines?limit=1&fields=id

GraphQL

The same airlines as the airlines query on https://api.sondahub.com/v1/flights/graphql, and one airline as airline(id: 1). Introspection is on. More on the GraphQL API.

{
  airlines(limit: 3, sort: "-id") {
    total
    data {
      id code name alliance
      flights(limit: 2) { id }
    }
  }
}

Run it

curl https://api.sondahub.com/v1/flights/graphql -H "Content-Type: application/json" -d '{"query": "{ airlines(limit: 3, sort: \"-id\") { total data { id code name alliance flights(limit: 2) { id } } } }"}'

From an AI agent (MCP)

The MCP server reaches the same rows with list_records, get_record, create_record, update_record and delete_record, and as the resource sondahub://flights/airlines.

tools/call

curl https://api.sondahub.com/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"list_records","arguments":{"api":"flights","collection":"airlines","limit":3}}}'

More in the Flights API

airports (50) · flights (2,500) · bookings (3,500)

The live streams, and the whole API on one page: Flights API. Other worlds: fake e-commerce API, fake IoT API, fake banking API, fake social media API, fake helpdesk API, fake user directory API.