MCP Tools ​

The All Aboard MCP server exposes the following tools to the model. The model decides which tools to call based on the task at hand.

list_documentation ​

Lists all available documentation sections and pages with short descriptions. Use this first to discover what is available before fetching specific content.

Parameters: None

Example output:

## Getting Started
- Introduction: Overview of All Aboard products and quick start guide
- Getting Started: Prerequisites, API endpoints, authentication setup
...

## Getting Started
- Introduction: Overview of All Aboard products and quick start guide
- Getting Started: Prerequisites, API endpoints, authentication setup
...

read_documentation ​

Fetches one or more documentation pages by slug and returns their content as clean plain-text markdown. Always call list_documentation first to find relevant slugs, then fetch only the pages you need.

A slug is the URL path without the leading slash:

Pass multiple slugs to fetch several pages in a single call.

Parameters:

explore_schema ​

Browses the live GraphQL schema. Returns operation signatures with argument types and return types, or a list of available types.

Parameters:

Example — list all queries containing "journey":

explore_schema({ category: "queries", filter: "journey" })

explore_schema({ category: "queries", filter: "journey" })

Example output:

- **journeys**(origin: LocationInput!, destination: LocationInput!, date: Date!, filter: JourneyFilterInput): [Journey!]!
  Find available train routes between two locations on a specific date.
- **journeyOffer**(journeyId: ID!, passengers: [PassengerPlaceholderInput!]!): JourneyOffer!
  Get pricing and offers for a journey.

- **journeys**(origin: LocationInput!, destination: LocationInput!, date: Date!, filter: JourneyFilterInput): [Journey!]!
  Find available train routes between two locations on a specific date.
- **journeyOffer**(journeyId: ID!, passengers: [PassengerPlaceholderInput!]!): JourneyOffer!
  Get pricing and offers for a journey.

get_type ​

Returns full details of a specific GraphQL type: all fields with their argument types and return types, enum values, input fields, interfaces implemented, and possible types for unions/interfaces.

Parameters:

Example:

get_type({ name: "Booking" })

get_type({ name: "Booking" })

If the type is not found, the tool returns suggestions for similarly named types.

execute_query ​

Executes a read-only GraphQL query against the All Aboard API and returns the JSON response. Use this tool only for query operations — use execute_mutation for mutations.

Authentication is handled automatically via OAuth 2.1 during MCP connection setup. No API key parameter is required.

If the tool returns an authentication error, reconnect your MCP client to https://mcp.allaboard.eu/mcp to go through the OAuth flow again.

Parameters:

Example:

query FindJourneys {
  journeys(
    origin: { uid: "Sb0ISveC" }
    destination: { uid: "p6fERure" }
    date: "2025-06-15"
  ) {
    id
    itinerary {
      __typename
      ... on SegmentCollection {
        segments {
          departureAt
          arrivalAt
          duration
        }
      }
      ... on Stopover {
        duration
      }
    }
  }
}

query FindJourneys {
  journeys(
    origin: { uid: "Sb0ISveC" }
    destination: { uid: "p6fERure" }
    date: "2025-06-15"
  ) {
    id
    itinerary {
      __typename
      ... on SegmentCollection {
        segments {
          departureAt
          arrivalAt
          duration
        }
      }
      ... on Stopover {
        duration
      }
    }
  }
}

GraphQL errors in the response are surfaced clearly alongside the full response body for debugging.

execute_mutation ​

Executes a GraphQL mutation against the All Aboard API. Use this for operations that create, update, or delete data — for example, booking tickets or creating orders. Use execute_query for read-only queries.

Authentication is handled automatically via OAuth 2.1, the same as execute_query.

Parameters:

Example:

mutation CreateBooking($offerIds: [ID!]!) {
  createBooking(offerIds: $offerIds) {
    id
    expiresAt
    totalPrice {
      amount
      currency
    }
  }
}

mutation CreateBooking($offerIds: [ID!]!) {
  createBooking(offerIds: $offerIds) {
    id
    expiresAt
    totalPrice {
      amount
      currency
    }
  }
}

GraphQL errors in the response are surfaced clearly alongside the full response body for debugging.