Schema | mcp-hsl

mcp-hsl

Describes the environment variables required to run the server.

Name	Required	Description	Default
`DIGITRANSIT_SUBSCRIPTION_KEY`	Yes	Your free Digitransit subscription key. Get it from https://portal-api.digitransit.fi/

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Features and capabilities supported by this server

Protocol revision2025-11-25

Capability	Details
`tools`	{ "listChanged": true }

Functions exposed to the LLM to take actions

Name	Description
geocodeA	Look up coordinates for an address, place, or landmark in the Greater Helsinki area. Returns up to 10 candidates with Finnish and Swedish names, coordinates, and a confidence score. Use this before plan_journey when you only have a place name.
stop_departuresA	Get the next departures from a Helsinki public-transport stop, including real-time delays. Accepts either a stop name (e.g. 'Kamppi', looked up internally) or an HSL stop ID (e.g. 'HSL:1140447'). If the name matches multiple stops, returns the candidate list so the caller can pick one.
plan_journeyA	Plan a public-transport journey between two places in Greater Helsinki. Accepts place names or addresses; both endpoints are geocoded internally. Returns up to 5 itineraries, each with legs, modes, line numbers, and real-time status. Departure time defaults to now; provide an ISO 8601 timestamp with offset to plan ahead.

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

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