# SL – Stockholm public transport

> Stockholm public transport (SL): live departures, trips to addresses with exits, disruptions.

- name: io.github.Hashtagsmile/sl-mcp
- version: 0.2.0
- connection class: R0 (autonomous)
- trust: 97/100
- quality: 87/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.Hashtagsmile%2Fsl-mcp
- tools: https://api.protogrid.dev/v1/servers/io.github.Hashtagsmile%2Fsl-mcp/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "sl-mcp": {
      "type": "http",
      "url": "https://sl-mcp.miltonlindblad.workers.dev/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-100% +updated-4d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 87/100 (new)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 4 of 4 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_departures (destructiveHint, idempotentHint); get_disruptions (destructiveHint, idempotentHint); plan_trip (destructiveHint, idempotentHint); …
- pass `tools.token_cost`: about 1,323 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 3 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 1,323 tokens to load them all
- tool set hash: 79e840e199bf67d17516cef332aec35d
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.Hashtagsmile/sl-mcp.svg)](https://protogrid.dev/servers/io.github.Hashtagsmile/sl-mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://sl-mcp.miltonlindblad.workers.dev/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (4)

- `find_stop`: Find Stockholm public transport (SL) stops by name and return their ids, names and transport modes. Use it to get the siteId for get_departures, or a stop id for plan_trip. Not for street addresses: pass those to plan_trip as text instead. A name can match several stops ('Arlanda' gives the train station and bus stops): pick by name and modes, or ask the user. Typos are fine, abbreviations are not: write 'Tekniska högskolan', not 'KTH'. Returns one line per stop: '<id>: <town>, <name> (<modes>)'.
- `get_departures`: List live departures from one SL stop, soonest first: line, mode, final destination, direction (1 or 2), platform or bus stop letter, minutes or clock time, delay, cancellation and SL's notes. Use it for 'when does the next X leave from Y'. To get from A to B, use plan_trip; for announced track work or broken lifts, use get_disruptions. Real-time data from SL: at most 3 departures per line and direction, up to 3 hours ahead. `towards` matches the final destination only: for a station on the way (e.g. 'mot T-Centralen' from Slussen), leave it out and pick the direction from the results. An unknown siteId gives no departures, not an error.
- `get_disruptions`: List disruptions SL has announced: track work, closed entrances, broken lifts and replacement buses, with the lines affected and until when. Use it to check a line or the stops of a trip before travelling, e.g. lifts for a wheelchair. For live delays and cancelled departures, use get_departures instead. The text is in Swedish, so translate it if needed, and is cut at 800 characters. Results are cached for 1 minute, as SL asks. Leave both filters out to list everything.
- `plan_trip`: Plan trips by SL public transport between two stops or street addresses, leaving or arriving at a given time. Returns up to 3 trips, plus walking all the way when that takes at most 30 min. Each ride lists line, direction, platform, stops, crowding and delay; each walk lists minutes and the station exit (uppgång). Use it for 'how do I get to X' and 'when must I leave'; for departures from one stop, use get_departures. Addresses are fuzzy matched, so the result starts with what each one matched. Times are Stockholm time. Unknown stops, the same stop twice and times outside the timetable give a clear error. SL cannot plan step-free trips: for a wheelchair or pram, use prefer 'least walking' and check get_disruptions for broken lifts at the stops.