IFC Viewer Online
NPM · IFC-VIEWER-MCP
IFC/BIM with a 3D viewer: validate IFC, check IDS, Health Score, drawings, digital twins.
Available components
Last scanned (18 hours ago)
Scores higher than 32% of npm servers
Category Design and Media
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 Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 95 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency48
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 1 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability68
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1754 tokens (~175/item across 10 items; 10 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 Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage99
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 96% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 10 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 11 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
Unverified: 1 category
A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.
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 +15
- Malware scan: unverified → pass ▲ security
- 2 Nov 26 49
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 4 Nov 2026 · Analysed npm/ifc-viewer-mcp@1.0.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 95 packages
| Packages resolved | 95 |
|---|---|
| Stale | 30 |
| 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 →
check_ids Check an IFC file against IDS requirements ~140
Check an IFC model against an IDS file (buildingSMART Information Delivery Specification 1.0) and return, per specification, pass/fail, how many elements applied, passed and failed, and the first failures with the element and the reason. Runs locally; nothing is uploaded. Use it when the user has an .ids file, or exchange requirements to verify a delivery against.
| Name | Type | Req | Description |
|---|---|---|---|
| ids | string | yes | The IDS: local path, public URL, or the IDS XML text itself. |
| ifc | string | yes | The IFC model: local path or public http(s) URL. |
| maxFailures | integer | – | Failures to list per specification. |
No output schema declared.
No examples provided.
list_digital_twins List live digital twin scenes ~115
List the ready-made city digital twins (Barcelona, Helsinki, Tokyo): georeferenced IFC models on terrain and the OpenStreetMap city, painted with live open data (bikes, EV chargers, traffic, air quality, trains). Each has a link and an embed link. Also returns the link to the twin builder, where the user builds their own twin (AGV warehouse, import tracking) from a CSV or live feed. Use it when the user asks for a digital twin demo or wants to start one.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_validation_rules List the IFC validation rules ~49
List every rule validate_ifc can run: its id, category, severity and whether it is on by default. Use it to pick rules for validate_ifc or to explain what a rule checks.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
open_3d_sketch Open the 3D sketch studio ~102
Link to the 3D sketch studio: draw strokes in 3D space with a pen, finger or mouse — over a blank canvas or around a model — on a phone, tablet, foldable or desktop, and export to SVG, PSD, ORA or Blender. Free, in the browser, no account. Use it when the user wants to sketch an idea, mark up a design in 3D or make a concept drawing.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
open_drawings Open technical drawings next to a model ~177
Build a link that opens IFC models with the drawings pane beside the 3D view and a floor plan already cut from the model. In that pane the user can also drop DXF or PDF drawings, place them over the model, calibrate the scale, compare plan against model, add dimensions and text, and export to DXF, SVG or PDF. Use it when the user wants a 2D plan, to check a drawing against the model, or to mark up a sheet.
| Name | Type | Req | Description |
|---|---|---|---|
| lang | string | – | Interface language: en, es, ca, fr, de, it, pt, ja, zh or th. |
| models | array | yes | Public http(s) URLs of IFC files. Several URLs load together as one federated scene. Local paths do not work here: the browser has to download the file. |
No output schema declared.
No examples provided.
open_in_3d_viewer Open IFC models in the 3D viewer ~352
Build a link that opens one or more public IFC files in the free IFC Viewer Online 3D viewer (runs in the browser: orbit, section, measure, properties, validation with Health Score badge). Optional: drop them on the city map, isolate a class, pick a camera view, open a floor plan in the drawings pane, add point clouds. Also returns an <iframe> to embed the same view in a web page, wiki or dashboard. Use it whenever the user wants to see, show, share or embed a model in 3D. Give the link to the user to click; this tool does not open a window by itself.
| Name | Type | Req | Description |
|---|---|---|---|
| isolate | string | – | Show only this IFC class, e.g. IfcWall, IfcDoor, IfcSpace. |
| lang | string | – | Interface language: en, es, ca, fr, de, it, pt, ja, zh or th. |
| map | boolean | – | Place the models on the 3D city map at their own georeference. |
| models | array | yes | Public http(s) URLs of IFC files. Several URLs load together as one federated scene. Local paths do not work here: the browser has to download the file. |
| scans | array | – | Public point-cloud URLs (LAS/LAZ/E57/PLY…) to load with the models. |
| ui | string | – | Interface preset: full (all panels), minimal, kiosk (no chrome), client (read-only for clients), article (for embedding in pages). |
| validate | boolean | – | Run validation after loading (default true). |
| view | string | – | Camera view once the models load. |
No output schema declared.
No examples provided.
read_dxf Summarise a DXF drawing ~146
Read a DXF drawing (ASCII, R12 to current) and summarise it: DXF version, units, layers with how many entities each, entity types, drawing extents and the text found on it (room names, labels, title block). Runs locally. Use it to tell what a drawing contains before placing it next to a model with open_drawings. DWG is detected but not read: ask the user to save it as DXF.
| Name | Type | Req | Description |
|---|---|---|---|
| maxTexts | integer | – | How many text strings to return. |
| source | string | yes | Path to a local file (absolute, or relative to where the server runs) or a public http(s) URL. |
No output schema declared.
No examples provided.
read_fiware_entities Read entities from a FIWARE context broker ~253
Read entities from a FIWARE context broker (Orion, Orion-LD, Scorpio, Stellio) over NGSI-LD or NGSIv2 and return them as flat records (id, type, each attribute value with its unit, lat/lon, observedAt) — the same shape the viewer's twin panel binds to IFC elements. The request goes from this machine straight to the broker. Use it to see what live data a broker offers before linking it to a model.
| Name | Type | Req | Description |
|---|---|---|---|
| api | string | – | ld = NGSI-LD, v2 = NGSIv2. |
| broker | string | yes | Broker root, e.g. https://orion.example.com:1026 |
| context | string | – | JSON-LD @context URL (NGSI-LD), for short attribute names. |
| limit | integer | – | How many entities to return. |
| servicePath | string | – | Fiware-ServicePath (NGSIv2 only). |
| tenant | string | – | NGSILD-Tenant / Fiware-Service, if the broker uses one. |
| type | string | – | Entity type, e.g. AirQualityObserved, ParkingSpot. NGSI-LD needs one. |
No output schema declared.
No examples provided.
search_port_library Search the Port de Barcelona IFC library ~138
Search the Port de Barcelona BIM object library (cranes, bollards, fenders, signs, buildings… IFC, CC BY 4.0) by words and category. Each hit has its IFC download URL and a link that opens it in the 3D viewer. Use it when the user needs port or maritime infrastructure objects for a model or twin.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Only this category (the answer lists them). |
| limit | integer | – | – |
| query | string | – | Words to look for in the object name, e.g. "grua", "bolardo", "crane". Empty lists everything. |
No output schema declared.
No examples provided.
validate_ifc Validate an IFC file and get its Health Score ~194
Check an IFC (BIM) model against the IFC Viewer Online rule set — schema, spatial structure, names, GlobalIds, ISO 19650, classification, MEP and more — and return its Health Score (0–100, higher is better), issue counts, the rules that cost the most points and the first issues with links to fix guides. Runs locally on this machine; the file is not uploaded anywhere. Use it when the user asks whether a model is OK, what is wrong with it, or how good it is.
| Name | Type | Req | Description |
|---|---|---|---|
| maxIssues | integer | – | How many issues to list (the counts always cover all of them). |
| rules | array | – | Run only these rule ids (see list_validation_rules). Default: the viewer's default rules. |
| source | string | yes | Path to a local file (absolute, or relative to where the server runs) or a public http(s) URL. |
No output schema declared.
No examples provided.
How do I install the IFC Viewer Online MCP server?
IFC Viewer Online runs locally as an npm package, launched with npx -y ifc-viewer-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · ifc-viewer-mcp
claude mcp add j03rul4nd-ifc-viewer-mcp -- npx -y ifc-viewer-mcp
What is the IFC Viewer Online MCP server?
IFC Viewer Online is an MCP server listed in the public MCP registry as io.github.j03rul4nd/ifc-viewer-mcp. IFC/BIM with a 3D viewer: validate IFC, check IDS, Health Score, drawings, digital twins. This page covers its npm package (ifc-viewer-mcp).
Is the IFC Viewer Online MCP server safe to use?
IFC Viewer Online scores 64 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 4 November 2026. It declares no install or post-install scripts. 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 IFC Viewer Online MCP server expose?
IFC Viewer Online exposes 10 tools: validate_ifc, list_validation_rules, check_ids, open_in_3d_viewer, open_drawings, and 5 more. Their descriptions and schemas cost roughly 1,666 tokens of context every time the server is loaded.
Is the IFC Viewer Online MCP server still maintained?
IFC Viewer Online is still listed as active in the MCP registry. We last reached this channel on 4 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 IFC Viewer Online MCP server under?
IFC Viewer Online declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.