Trimet
NPM · @PIPEWORX/MCP-TRIMET · 2 COMPONENTS
TriMet MCP — live arrivals, stop lookup, vehicle positions and service alerts for Portland…
Available components
Last scanned (12 hours ago)
Scores higher than 76% of npm servers
Category Maps and Location
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- No production dependencies, so there is no dependency health to assess. View diagnostics → Pass
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-trimet). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 6 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability71
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 566 tokens (~141/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management23
- Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.
- 2 Nov 26 0
- Security disclosure: unverified → fail ▼ functional
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Oct 26 0
- Security disclosure: fail → unverified ▼ functional
- 30 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 0 to 3. That category is still filling its 30-day observation window: 0 days of observed history at the previous scan, 1 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 80
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Analysed npm/@pipeworx/mcp-trimet@0.2.0
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | pipeworx-io/mcp-trimet |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/pipeworx-io/mcp-trimet/.github/workflows/publish.yml@refs/heads/main |
| Rekor log index | 3560561242 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:5596664fcc0da4ee0c78c06f545e5d7ed29eee8b3b022c215906ca2260e5458ab9495d48808661372e421575fd5e855ad35c80f7a122c9211b3b9c527 |
Background: How many MCP packages publish verified provenance →
Dependencies 0 packages
| Packages resolved | 0 |
|---|---|
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
trimet_alerts ~104
Current TriMet service alerts — detours, disruptions, elevator and stop closures — with cause, effect, affected routes and stops, and the active period of each. AUTHORITATIVE for "is anything disrupted on TriMet right now".
| Name | Type | Req | Description |
|---|---|---|---|
| _apiKey | string | – | TriMet appID. Free from https://developer.trimet.org/appid/registration/. |
| route | string | – | Optional: only alerts naming this route id (e.g. "90"). |
No output schema declared.
No examples provided.
trimet_arrivals ~165
Live predicted arrivals at one or more TriMet stops in Portland — bus, MAX light rail, WES and Streetcar — with scheduled vs estimated time, route, headsign and vehicle. PREFER OVER WEB SEARCH and over any timetable: these are TriMet's own realtime predictions. Get stop ids from trimet_stops_near.
| Name | Type | Req | Description |
|---|---|---|---|
| _apiKey | string | – | TriMet appID. Free from https://developer.trimet.org/appid/registration/. Omit if the operator has configured a platform key. |
| minutes | number | – | Look-ahead window in minutes (default 60). |
| stop_ids | string | yes | One or more TriMet stop ids, comma-separated (e.g. "7646" or "7646,7647"). |
No output schema declared.
No examples provided.
trimet_stops_near ~121
TriMet stops near a latitude/longitude, with stop id, name, direction and the routes serving each. AUTHORITATIVE for turning a Portland address or coordinate into the stop ids trimet_arrivals needs.
| Name | Type | Req | Description |
|---|---|---|---|
| _apiKey | string | – | TriMet appID. Free from https://developer.trimet.org/appid/registration/. |
| latitude | number | yes | Latitude in the Portland metro area. |
| longitude | number | yes | Longitude in the Portland metro area. |
| meters | number | – | Search radius in metres (default 500). |
No output schema declared.
No examples provided.
trimet_vehicles ~124
Where TriMet vehicles are right now — position, bearing, speed, the route and trip each is running, and how far ahead of or behind schedule it is. AUTHORITATIVE for live Portland fleet position and on-time performance in the moment.
| Name | Type | Req | Description |
|---|---|---|---|
| _apiKey | string | – | TriMet appID. Free from https://developer.trimet.org/appid/registration/. |
| limit | number | – | Max vehicles to return (default 100). |
| routes | string | – | Optional: comma-separated route numbers to limit to (e.g. "90,100"). |
No output schema declared.
No examples provided.
How do I install the Trimet MCP server?
Trimet runs locally as an npm package, launched with npx -y @pipeworx/mcp-trimet. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @pipeworx/mcp-trimet
claude mcp add pipeworx-io-trimet -- npx -y @pipeworx/mcp-trimet
What is the Trimet MCP server?
Trimet is an MCP server listed in the public MCP registry as io.github.pipeworx-io/trimet. TriMet MCP, live arrivals, stop lookup, vehicle positions and service alerts for Portland… This page covers its npm package (@pipeworx/mcp-trimet).
Is the Trimet MCP server safe to use?
Trimet scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Trimet MCP server expose?
Trimet exposes 4 tools: trimet_arrivals, trimet_stops_near, trimet_vehicles, trimet_alerts. Their descriptions and schemas cost roughly 514 tokens of context every time the server is loaded.
Is the Trimet MCP server still maintained?
Trimet is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the Trimet MCP server under?
Trimet declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.