# Zerouter (mcpb · zerouter-mcp-0.1.0.mcpb)

AI API gateway MCP: Claude, GPT, Gemini, Grok & Kimi with one Zerouter API key, plus API pricing.

- Trust score: 44/100 (low)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-18

## Components

- mcpb · `zerouter-mcp-0.1.0.mcpb`: 44/100 (this document), [markdown](https://verifymcp.io/servers/zerouterai-zerouter-mcp/zerouter-mcp.md), [page](https://verifymcp.io/servers/zerouterai-zerouter-mcp/zerouter-mcp)

## Channel facts

- Registry: `mcpb`
- Package: `https://github.com/ZerouterAI/zerouter-mcp/releases/download/v0.1.0/zerouter-mcp-0.1.0.mcpb`
- Version: `0.1.0`
- Transport: `stdio`
- SHA-256: `32aefe7c4f0952dec80c31154dfde93231a5cff38114a6a2aa55699012d475ab`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-18.

- **Supply Chain Security**: 23/100
  - No malware scan is available for this kind of package: the supply-chain vendors we use do not cover it. This is a permanent gap in our coverage, not a finding about the package.
  - Known CVEs were checked across the 92 of 92 dependencies we could resolve, so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - 31 of 92 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 0 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 68/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 529 tokens (~132/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 90/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 71% of tool parameters carry a description.
- **Tool Safety**: 75/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 0 of 2 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "chat" implies "send" and declares no destructiveHint at all, which the MCP spec reads as destructive by default.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**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.

## Install

### How do I install the Zerouter MCP server?

Zerouter ships as an MCPB bundle, a single file you download and open in an MCP host that supports MCPB bundles, such as Claude Desktop. The host reads the launch command from the bundle's own manifest, so there is no command to copy. Before opening it, check the file's SHA-256 matches the one the MCP registry declares for it, 32aefe7c4f0952dec80c31154dfde93231a5cff38114a6a2aa55699012d475ab; the commands to do that are on this page. If it does not match, do not open it.

- Download bundle: `https://github.com/ZerouterAI/zerouter-mcp/releases/download/v0.1.0/zerouter-mcp-0.1.0.mcpb`
- SHA-256: `32aefe7c4f0952dec80c31154dfde93231a5cff38114a6a2aa55699012d475ab`

### Verify on macOS / Linux

```bash
echo "32aefe7c4f0952dec80c31154dfde93231a5cff38114a6a2aa55699012d475ab  zerouter-mcp-0.1.0.mcpb" | shasum -a 256 -c
```

### Verify on Windows (PowerShell)

```powershell
(Get-FileHash -Algorithm SHA256 .\zerouter-mcp-0.1.0.mcpb).Hash -eq "32aefe7c4f0952dec80c31154dfde93231a5cff38114a6a2aa55699012d475ab"
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-17 (score 44)

First indexed and scored.

## MCP tools (4)

### `get_pricing` (~104 tokens)

Get Zerouter pricing

Public per-model prices on Zerouter in USD per 1M tokens (input/output), next to the official list price. No API key needed. Data comes from https://www.zerouter.ai/pricing.

Input parameters:

- `model` (string): Filter by model ID or name substring, e.g. 'claude' or 'gpt-6'
- `provider` (string): Filter by provider: anthropic, openai, gemini, grok, kimi

### `list_models` (~69 tokens)

List Zerouter models

List model IDs available on Zerouter and the endpoint each one uses. Uses GET /v1/models when ZEROUTER_API_KEY is set, otherwise the public catalog at https://www.zerouter.ai/models.

Input parameters:

- `filter` (string): Optional substring filter, e.g. 'gemini'

### `chat` (~215 tokens)

Chat with a model via Zerouter

Send a prompt or a message list to any Zerouter model (Claude, GPT, Gemini, Grok, Kimi, ...). The request is routed automatically: Claude/Kimi -> /v1/messages, GPT/Grok/Codex -> /v1/responses, Gemini and other models -> /v1/chat/completions. Requires ZEROUTER_API_KEY.

Input parameters:

- `endpoint` (string): Override routing. Default auto.
- `max_tokens` (integer): Max output tokens (default 1024 for Claude/Kimi)
- `messages` (array): Conversation history as {role, content} items
- `model` (string, required): Model ID, e.g. claude-sonnet-5-5, gpt-6-sol, gemini-3.8-flash, grok-4.6, kimi-k3
- `prompt` (string): User prompt. Appended after `messages` if both are given.
- `system` (string): Optional system prompt
- `temperature` (number)

### `compare_models` (~79 tokens)

Compare models side by side

Send the same prompt to 2-4 Zerouter models in parallel and return each answer with token usage, latency and estimated cost. Requires ZEROUTER_API_KEY.

Input parameters:

- `max_tokens` (integer)
- `models` (array, required): 2 to 4 model IDs
- `prompt` (string, required)
- `system` (string)

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/zerouterai-zerouter-mcp/zerouter-mcp#diagnostics

## Score history

- 2026-10-18: 44
- 2026-10-17: 44

## Common questions

### What is the Zerouter MCP server?

Zerouter is an MCP server listed in the public MCP registry as io.github.ZerouterAI/zerouter-mcp. AI API gateway MCP: Claude, GPT, Gemini, Grok & Kimi with one Zerouter API key, plus API pricing. This page covers its MCPB bundle (https://github.com/ZerouterAI/zerouter-mcp/releases/download/v0.1.0/zerouter-mcp-0.1.0.mcpb).

### Is the Zerouter MCP server safe to use?

Zerouter scores 44 out of 100 on VerifyMCP. 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 Zerouter MCP server expose?

Zerouter exposes 4 tools: get_pricing, list_models, chat, compare_models. Their descriptions and schemas cost roughly 467 tokens of context every time the server is loaded.

### What licence is the Zerouter MCP server under?

Zerouter declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- Repository: https://github.com/ZerouterAI/zerouter-mcp
- Website: https://www.zerouter.ai/
- Changelog RSS feed: https://verifymcp.io/servers/zerouterai-zerouter-mcp/zerouter-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/zerouterai-zerouter-mcp/zerouter-mcp.json
- HTML version of this page: https://verifymcp.io/servers/zerouterai-zerouter-mcp/zerouter-mcp