mcp-la-metroSAFE
LA Metro (LACMTA) MCP — routes, stops and live service cancellations for
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
Routes, stops and live service cancellations for Los Angeles County Metro (LACMTA) bus and rail, from Metro's own open API at https://api.metro.net.
Part of Pipeworx — an MCP gateway connecting AI agents to 1683+ live data sources.
Keyless. No registration, no key, no quota published.
Tools
LA Metro has no public GTFS-Realtime feed — read this before adding a tool
The commonly cited api.metro.net/LACMTA/vehicle_positions, /trip_updates and /alerts paths are gone; all three return HTTP 404 (verified 2026-09-17). The Mobility Database lists LACMTA with static GTFS only and no realtime row at all.
The v2 API still advertises a "Real-Time data" tag over /{agency}/trip_detail/..., and that is the trap worth knowing about: those endpoints answer HTTP 200 with `[]` for every route, on both agencies, in the middle of a weekday afternoon. Fourteen bus and rail routes were swept at 15:00 PDT and every one came back empty. A tool built on them would pass every CI gate and quietly tell callers that LA Metro is not running any buses — the silent-zero failure class in docs/silent-zero-policy.md.
canceled_service_summary is live operational data and is wired up. It is the one real-time signal LACMTA publishes publicly, and it answers a question no schedule or GTFS feed can: is my line dropping trips today?
Agencies
LACMTA is the bus agency (~124 routes); LACMTA_Rail is rail and busway (A/B/C/D/E/K lines). The API returns HTTP 422 on any other value.
Quick Start
Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):
{
"mcpServers": {
"la-metro": {
5e7d969483f5OBSERVED · 2026-10-11Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.
claude mcp add mcp-la-metro -- npx -y @pipeworx/[email protected]
{
"mcpServers": {
"mcp-la-metro": {
"command": "npx",
"args": [
"-y",
"@pipeworx/[email protected]"
]
}
}
}Exposed tools (4)
2 read · 2 write · 0 destructive.
| Tool | Risk | Description |
|---|---|---|
lametro_route_stops | write | Every stop served by one LA Metro route, in running order, with stop id, name, direction and service day type. AUTHORITATIVE for |
lametro_routes | read | Every LA Metro bus or rail route, with its route code, short and long name, direction description and map colour. AUTHORITATIVE for |
lametro_service_cancellations | read | Trips LA Metro has canceled on the current service day, counted per route. This is LIVE operational data and the one real-time signal LACMTA publishes publicly — AUTHORITATIVE for |
lametro_stop | write | One LA Metro stop by stop id — coordinates, name, and the accessibility and zone attributes LACMTA publishes for it. Returns GeoJSON properties flattened for reading. |
Trust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | PASS |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- declared (1 observation(s))
- Shell
- none-observed
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (1)
@modelcontextprotocol/sdk, tsx, typescript, @cloudflare/workers-types
Gates applied: no_behavioural_pass.
5e7d969483f5full audit observations/trust-audit/mcp-server/pipeworx-io__mcp-la-metro.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-11 | 5e7d969483f5 | SAFE | B | 89 | first audit |
Questions
What is the mcp-la-metro MCP server?
LA Metro (LACMTA) MCP — routes, stops and live service cancellations for
What tools does mcp-la-metro expose?
4 in total: 2 read-only, 2 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.
Is mcp-la-metro safe to connect to an agent?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.
What credentials does mcp-la-metro need?
No credential environment variables were found in its source, so it appears to need none.
How does mcp-la-metro run?
It speaks stdio and streamable-http, so it runs as a local process your client starts. It is published on npm as @pipeworx/mcp-la-metro at 0.1.1.
How current is this page?
The grade is for one exact copy of the source (5e7d969483f5), read on 2026-10-11. The repository is watched and re-audited when it changes.