# io.github.voronkovm/canvs

AI-powered diagrams, mind maps, flowcharts on a free unlimited collaborative whiteboard

- **Type:** MCP server
- **Trust:** 60/100 (B), scored on the content rubric
- **Verification:** community-indexed — nobody has claimed this listing
- **Version:** 1.0.0
- **Author:** io.github.voronkovm
- **License:** Unknown
- **Endpoints:** streamable-http https://app.canvs.io/mcp
- **Source:** https://app.canvs.io
- **Endpoint health:** reachable (last checked 2026-09-30T00:24:11.606Z, 6 samples) — uptime is not a security property and is not part of the trust score
- **Compatible clients:** claude-code, cursor, copilot, chatgpt, gemini (basis: transport)

## Trust

60/100 (B), scored on the content rubric
- Publisher verified: no
- Install scripts: nothing suspicious found
- Prompt-injection scan: clean
- Obfuscation scan: clean
- Evidence age: 32 days

## Security scan

- **Status:** clean
- **Scanned:** 2026-09-02T21:17:56.945Z
- **Version scanned:** live
- **CVEs:** no coverage — this entry has no package coordinates to query OSV against, so "no known CVEs" is NOT asserted for it.

## Tools

6 declared. Observed from a live `tools/list` probe.
- `get_guide` — Returns guidance on diagram-creation workflow and tool selection: how to choose between Mermaid and manual element creation, and the recommended iteration workf
- `add_elements` — Creates elements on a canvas. Creates a new canvas if room_id is omitted, or adds to the existing canvas if room_id is provided. Use cases: wireframes, UI mocku
- `update_elements` — Update elements on a canvas. Requires room_id from a previous Canvs tool result. Pass elements array with id and fields to update. IMPORTANT: in each update obj
- `delete_elements` — Delete elements from a canvas. Requires room_id from a previous Canvs tool result. Pass ids array of element IDs to delete.
- `query_elements` — Query elements on a canvas. Requires room_id from a previous Canvs tool result. Returns elements matching optional filters. Use this before update_elements when
- `add_elements_from_mermaid` — Creates diagram elements from a Mermaid definition. Creates a new canvas if room_id is omitted, or adds to the existing canvas if room_id is provided. Preferred

## Install

**Verdict: review** — Installable, but 2 things to check first: No CVE coverage: this entry has no npm/PyPI coordinates to query OSV against, so "no known vulnerabilities" is not a claim that can be made about it.
**Cautions** (coverage gaps and advisories — never blocking)
- No CVE coverage: this entry has no npm/PyPI coordinates to query OSV against, so "no known vulnerabilities" is not a claim that can be made about it.
- No publisher has proved control of this listing; it is indexed, not vouched for.
**Config** (claude-code):
```json
"{\n  \"mcpServers\": {\n    \"canvs\": {\n      \"type\": \"http\",\n      \"url\": \"https://app.canvs.io/mcp\"\n    }\n  }\n}"
```

## Blast radius

Moderate to extensive — no credential declaration found, from the publisher, the upstream registry, or the README. Known so far: deletes data; runs on someone else's infrastructure.
- Floor 32, ceiling 56 (tier: unknown)
- `unknown` means the floor and ceiling land in different bands — not measured enough to name one. It does not mean low.
- This is impact, not likelihood. A high radius is not a defect: a filesystem server is supposed to write files. It is never part of the trust score.

## Machine-readable views of this entry

- Signed JSON: https://forgeregistry.com/api/v1/packages/io.github.voronkovm%2Fcanvs
- Install plan: https://forgeregistry.com/api/v1/packages/io.github.voronkovm%2Fcanvs/install-plan
- Alternatives: https://forgeregistry.com/api/v1/alternatives/io.github.voronkovm%2Fcanvs
- HTML page: https://forgeregistry.com/registry/io.github.voronkovm%2Fcanvs
- MCP: POST https://forgeregistry.com/api/mcp → `forge_get_package` / `forge_install_plan`

## About this document

Generated by Forge (https://forgeregistry.com) — a compact rendering of the same record served, signed, at the JSON URL above. Trust and scan facts are the registry's own measurements; anything Forge did not measure is named as unmeasured rather than omitted.