MCP Bench Router
NPM · MCP-BENCH-ROUTER
Routes design tasks to designarena.ai's top-ranked model via OpenRouter across 14 categories.
Available components
Last scanned (22 hours ago)
Scores higher than 53% 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 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency44
- 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 269 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability67
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 986 tokens (~246/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 Management100
- No destabilizing schema changes in the last 30 days.Pass
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 Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 2 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "query_design_model" implies "send" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 4 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.
- 4 Nov 26 +1
- Stability: 0.97 → pass security
- 3 Nov 26 −1
- Security disclosure: unverified → fail ▼ functional
- Stability: pass → 0.97 functional
- 2 Nov 26 0
- Security disclosure: fail → unverified ▼ functional
- 31 Oct 26 0
- Security disclosure: unverified → fail ▼ functional
- 29 Oct 26 0
- Security disclosure: fail → unverified ▼ functional
- 28 Oct 26 +1
- Stability: 0.97 → pass security
- 27 Oct 26 −1
- Stability: pass → 0.97 functional
- 25 Oct 26 0
- Security disclosure: unverified → fail ▼ functional
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/mcp-bench-router@1.0.1
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 93 packages
| Packages resolved | 93 |
|---|---|
| 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 →
get_best_design_model ~240
Get the current #1 design model from designarena.ai's crowdsourced leaderboard, optionally filtered by category. Returns model info and OpenRouter availability.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Design category to filter by. Options: allcategories, website (models generate a complete website from a text prompt), gamedev (models generate a playable browser game from a text prompt), 3d (models… |
No output schema declared.
No examples provided.
get_leaderboard ~277
Browse the full designarena.ai design model rankings with optional category filter and pagination. Shows Elo ratings, win rates, and OpenRouter availability.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Design category to filter by. Options: allcategories, website (models generate a complete website from a text prompt), gamedev (models generate a playable browser game from a text prompt), 3d (models… |
| limit | integer | – | Number of entries to return (1-50). Defaults to 10. |
| offset | integer | – | Number of entries to skip. Defaults to 0. |
No output schema declared.
No examples provided.
query_design_model ~294
Send a design prompt to the best available model on OpenRouter, automatically selected from designarena.ai rankings. Skips models not available on OpenRouter. Requires OPENROUTER_API_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Design category to select the best model from. Options: allcategories, website (models generate a complete website from a text prompt), gamedev (models generate a playable browser game from a text pr… |
| max_tokens | integer | – | Maximum tokens in the response. |
| prompt | string | yes | The design prompt to send to the best available model. |
| temperature | number | – | Sampling temperature (0-2). |
No output schema declared.
No examples provided.
query_specific_model ~175
Send a design prompt to a specific model via OpenRouter. Accepts either an OpenRouter model ID (e.g. 'anthropic/claude-sonnet-4-5-20250514') or a Design Arena model name (e.g. 'claude-sonnet-4-5'). Requires OPENROUTER_API_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | Maximum tokens in the response. |
| model | string | yes | Model identifier. Can be an OpenRouter ID (e.g. "anthropic/claude-sonnet-4-5-20250514") or a Design Arena model name (e.g. "claude-sonnet-4-5"). |
| prompt | string | yes | The design prompt to send to the model. |
| temperature | number | – | Sampling temperature (0-2). |
No output schema declared.
No examples provided.
How do I install the MCP Bench Router server?
MCP Bench Router runs locally as an npm package, launched with npx -y mcp-bench-router. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · mcp-bench-router
claude mcp add k1ta141k-mcp-bench-router -- npx -y mcp-bench-router
What is the MCP Bench Router server?
MCP Bench Router is listed in the public MCP registry as io.github.K1ta141k/mcp-bench-router. Routes design tasks to designarena.ai's top-ranked model via OpenRouter across 14 categories. This page covers its npm package (mcp-bench-router).
Is the MCP Bench Router server safe to use?
MCP Bench Router scores 76 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 MCP Bench Router server expose?
MCP Bench Router exposes 4 tools: get_best_design_model, get_leaderboard, query_design_model, query_specific_model. Their descriptions and schemas cost roughly 986 tokens of context every time the server is loaded.
Is the MCP Bench Router server still maintained?
MCP Bench Router 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 MCP Bench Router server under?
MCP Bench Router declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.