# io.github.cyanheads/onebusaway-mcp-server

> Real-time transit stops, routes, arrivals, vehicle positions, and schedules via OneBusAway APIs.

- name: io.github.cyanheads/onebusaway-mcp-server
- version: 0.2.1
- connection class: R0 (autonomous)
- trust: 94/100
- quality: 84/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.cyanheads%2Fonebusaway-mcp-server
- tools: https://api.protogrid.dev/v1/servers/io.github.cyanheads%2Fonebusaway-mcp-server/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "onebusaway-mcp-server": {
      "type": "http",
      "url": "https://onebusaway.caseyjhand.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 100
- provenance: 80
- drivers: +repository +namespace-matches-repo +reachable +uptime-100% +updated-11d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 84/100 (good)

### 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`: 16 of 16 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: onebusaway_search_stops (destructiveHint, idempotentHint, openWorldHint); onebusaway_search_routes (destructiveHint, idempotentHint, openWorldHint); onebusaway_get_stop (destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 3,530 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 75 (weight 15)

- warn `stability.changes`: 6 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

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

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: deps.dev does not know @cyanheads/onebusaway-mcp-server@0.2.1, @cyanheads/onebusaway-mcp-server@0.2.1

- tools: 16, about 3,530 tokens to load them all
- tool set hash: 4da6f2f9b313f8ce52b95532647b96ca
- tools last changed: 2026-09-25T08:42:27.174Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.cyanheads/onebusaway-mcp-server.svg)](https://protogrid.dev/servers/io.github.cyanheads/onebusaway-mcp-server)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-09-25 `onebusaway_get_schedule_for_route` changed (inputSchema)
- 2026-09-25 `onebusaway_get_schedule_for_stop` changed (inputSchema)
- 2026-09-25 `onebusaway_get_block` changed (description)
  - before: Fetch the full-day block schedule for a vehicle by block ID. A block is the ordered sequence of trips a single vehicle makes in one service day. Returns all trips in order with their stop times. Useful for 'when will this bus return?' and fleet tracking. Block IDs appear in onebusaway_get_trip responses under the schedule block field; obtain a tripId from onebusaway_get_arrivals first.
  - after: Fetch the full-day block schedule for a vehicle by block ID. A block is the ordered sequence of trips a single vehicle makes in one service day. Returns all trips in order with their stop times. Useful for 'when will this bus return?' and fleet tracking. Block IDs appear as blockId in onebusaway_get_trip responses; obtain a tripId from onebusaway_get_arrivals first.
- 2026-09-25 `onebusaway_get_trip` changed (inputSchema)
- 2026-09-25 `onebusaway_get_stop_context` added
  - Everything happening at a stop in one call: the stop's details, its real-time arrivals, and full detail for every service alert on the stop or on any arrival in the window. Returns what onebusaway_get_stop, onebusaway_get_arrivals, and one onebusaway_get_alert call per alert would, from a single upstream request — arrivals in the onebusaway_get_arrivals shape, alerts in the onebusaway_get_alert shape. The stop omits its served-route list; use onebusaway_get_stop for routeIds. Stop IDs use agency-prefixed format: {agencyId}_{localId} (e.g. "1_75403").
- 2026-09-25 `onebusaway_get_arrivals` changed (inputSchema, outputSchema)

Full history: https://api.protogrid.dev/v1/servers/io.github.cyanheads%2Fonebusaway-mcp-server/changes

## Dependencies

- npm @cyanheads/onebusaway-mcp-server@0.2.1: unknown
- npm @cyanheads/onebusaway-mcp-server@0.2.1: unknown

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

- https://onebusaway.caseyjhand.com/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

- npm @cyanheads/onebusaway-mcp-server@0.2.1
- npm @cyanheads/onebusaway-mcp-server@0.2.1

## Tools (16)

- `onebusaway_find_routes`: Find transit routes near a location, optionally filtered by name or number. Returns routes with IDs, short names, and descriptions. Use routeId values to fetch schedules, vehicles, or stop sequences.
- `onebusaway_find_stops`: Find bus stops near a location. Returns stops within a radius, each with ID, name, direction, served routes, and wheelchair boarding status. Use stopId values from results to fetch real-time arrivals with onebusaway_get_arrivals. Optionally filter by stop code (the number printed on the stop sign, e.g. "75403").
- `onebusaway_get_alert`: Fetch full detail for a service alert (situation) by ID. Returns the summary, description, reason (e.g. detour, construction), affected stops and routes, consequence description, and active time windows. Situation IDs appear in onebusaway_get_arrivals responses under situationIds and situations[].id.
- `onebusaway_get_arrivals`: Real-time arrivals and departures at a stop. Returns predicted arrival times, schedule deviation (how many seconds late/early), vehicle positions, and any active service alerts. The predicted boolean on each arrival indicates whether GPS tracking backs the estimate — predicted=false means schedule-only. Use tripId from results for follow-up onebusaway_get_trip calls. Stop IDs use agency-prefixed format: {agencyId}_{localId} (e.g. "1_75403").
- `onebusaway_get_block`: Fetch the full-day block schedule for a vehicle by block ID. A block is the ordered sequence of trips a single vehicle makes in one service day. Returns all trips in order with their stop times. Useful for 'when will this bus return?' and fleet tracking. Block IDs appear as blockId in onebusaway_get_trip responses; obtain a tripId from onebusaway_get_arrivals first.
- `onebusaway_get_route`: Fetch details for a specific route by ID. Returns short name, description, agency, route type, and schedule URL. Route IDs use agency-prefixed format: {agencyId}_{localId} (e.g. "1_100259").
- `onebusaway_get_schedule_for_route`: Full-day schedule for a route — all trips, stop sequences, and departure times for the specified date (defaults to today). Returns up to all trips for the route. For live predictions, use onebusaway_get_arrivals at specific stops instead.
- `onebusaway_get_schedule_for_stop`: Full-day departure schedule for a stop. Lists every departure by route and direction for the specified date (defaults to today). Useful for planning or when real-time data isn't needed. For live predictions, use onebusaway_get_arrivals instead.
- `onebusaway_get_stop`: Fetch details for a specific stop by ID. Returns the stop's name, coordinates, direction, served routes, and wheelchair accessibility. Stop IDs use agency-prefixed format: {agencyId}_{localId} (e.g. "1_75403" for Metro Transit stop 75403).
- `onebusaway_get_stop_context`: Everything happening at a stop in one call: the stop's details, its real-time arrivals, and full detail for every service alert on the stop or on any arrival in the window. Returns what onebusaway_get_stop, onebusaway_get_arrivals, and one onebusaway_get_alert call per alert would, from a single upstream request — arrivals in the onebusaway_get_arrivals shape, alerts in the onebusaway_get_alert shape. The stop omits its served-route list; use onebusaway_get_stop for routeIds. Stop IDs use agency-prefixed format: {agencyId}_{localId} (e.g. "1_75403").
- `onebusaway_get_trip`: Real-time status and stop sequence for a trip. Returns vehicle position, schedule deviation, current phase, and remaining stops. Use tripId from onebusaway_get_arrivals to look up a specific vehicle's progress.
- `onebusaway_get_vehicles`: Real-time positions of all active vehicles for an agency. Optionally filter to a single route (client-side). Returns GPS coordinates, heading, schedule deviation, and current trip. Useful for "where are all the buses on route X right now?" Use agencyId values from onebusaway_list_agencies.
- `onebusaway_list_agencies`: List all transit agencies served by this OneBusAway instance. Returns agency IDs, names, contact info, timezone, and geographic coverage center. Agency IDs are needed for onebusaway_list_routes_for_agency and onebusaway_get_vehicles.
- `onebusaway_list_routes_for_agency`: List all routes operated by an agency. Returns route IDs, short names, and descriptions. Use to enumerate an agency's full service before searching for a specific route. Get agencyId values from onebusaway_list_agencies.
- `onebusaway_search_routes`: Search for routes by name or number. Returns matching routes with IDs. Use to resolve a route short name (e.g. "44") to a route ID for schedule or vehicle lookups with onebusaway_get_vehicles or onebusaway_get_schedule_for_route.
- `onebusaway_search_stops`: Search for stops by name or code. Returns matching stops with IDs and coordinates. Use to resolve a human-readable stop name or number to a stop ID for arrivals lookups with onebusaway_get_arrivals.