BART Real-Time Transit

by srivastsh · remote · no sign-in to list tools · v1.0.0 · published by GitHub user srivastsh

Real-time BART departures, trip planning, fares, stations, and advisories.

Changes · 1

Compare Registry entry

7 tools: 1 change things and 6 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things1Claude Code: ask: see these tools
Only reads6Claude Code: allow: see these tools

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http bart https://bart-mcp.srivastsh.workers.dev/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

7 tools

Changes things 1Creates or changes something that can be changed back.Claude Code: ask

bart_tripPlan a trip between two BART stations.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Plan a trip between two BART stations. Returns schedule, fares, and transfer info.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: false
- openWorldHint: true

Only reads 6Looks things up and changes nothing.Claude Code: allow

bart_advisoriesGet current BART service advisories, delays, and elevator/escalator status.Reads text others writeNo findings
Why it is in this group
- The description's first verb is "get": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Get current BART service advisories, delays, and elevator/escalator status.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: false
- openWorldHint: true
bart_departuresGet real-time departures from a BART station.Reads text others writeNo findings
Why it is in this group
- The description's first verb is "get": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Get real-time departures from a BART station. Args: - station: 4-letter abbreviation (e.g. EMBR, 24TH) - direction: Optional 'n' or 's'
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: false
- openWorldHint: true
bart_fareGet fare between two BART stations.Reads text others writeNo findings
Why it is in this group
- The description's first verb is "get": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Get fare between two BART stations.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
bart_station_lookupSearch BART stations by name, city, address, or 4-letter station code.Reads text others writeNo findings
Why it is in this group
- The name "bart_station_lookup" says "lookup": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Search BART stations by name, city, address, or 4-letter station code.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
bart_stationsList all BART stations with abbreviation codes and locations.Reads text others writeNo findings
Why it is in this group
- The description's first verb is "list": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
List all BART stations with abbreviation codes and locations. Use this to look up station codes needed by other tools.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
bart_status_summarySummarize current BART service status from advisories and real-time alert data.Reads text others writeNo findings
Why it is in this group
- The name "bart_status_summary" says "status": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Summarize current BART service status from advisories and real-time alert data.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: false
- openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write7: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; bart_advisories
bart_departures
bart_fare
bart_station_lookup
bart_stations
bart_status_summary
bart_trip
Can send data out0: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Looked at Oct 22, 2026, 15:05 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable: yes
HTTP status of an anonymous initialize: 200
tools/list served without credentials: yes
Tools that change things, listed without credentials: 1
Protocol version: 2025-06-18
WWW-Authenticate on 401: not observed
resource_metadata in WWW-Authenticate: none
RFC 9728 protected resource metadata: none
Authorization servers: none
Legacy HTTP+SSE transport: no
Dynamic client registration: not observed
Client ID metadata documents: not observed

WarnThe whole server
The endpoint served tools/list without credentials, and the list has 1 tool that changes things (1 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://bart-mcp.srivastsh.workers.dev/mcp: tools/list returned 7 tools to an anonymous client, including bart_trip (write)
What this check looks for

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http bart https://bart-mcp.srivastsh.workers.dev/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__bart__bart_stations",
      "mcp__bart__bart_station_lookup",
      "mcp__bart__bart_departures",
      "mcp__bart__bart_advisories",
      "mcp__bart__bart_status_summary",
      "mcp__bart__bart_fare"
    ],
    "ask": [
      "mcp__bart__bart_trip"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as bart. Review it before you use it.

Capability tags behind 7 rules

mcp__bart__bart_stations untrusted-input
mcp__bart__bart_station_lookup untrusted-input
mcp__bart__bart_departures untrusted-input
mcp__bart__bart_trip untrusted-input
mcp__bart__bart_advisories untrusted-input
mcp__bart__bart_status_summary untrusted-input
mcp__bart__bart_fare untrusted-input

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.github.srivastsh/bart-mcp/changes.xml

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Anlyon alternative

1 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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Source: MCP Registry · repository. Synced Oct 21, 2026, 18:49 UTC.

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