# Mithrandir — free MCP gateway test (remote · mithrandir-production.up.railway.app)

Observe MCP tools, verify repeated reads, then try bounded exact reuse for free.

- Trust score: 62/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-29

## Components

- remote · `mithrandir-production.up.railway.app`: 62/100 (this document), [markdown](https://verifymcp.io/servers/hyhyr2-mithrandir/mithrandir-production.md), [page](https://verifymcp.io/servers/hyhyr2-mithrandir/mithrandir-production)

## Channel facts

- Endpoint: `https://mithrandir-production.up.railway.app/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.20.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, 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 2026-09-29.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (mithrandir_gateway_trial_start).
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 76/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 369 tokens (~46/item across 8 items; 3 tools + 5 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability check failed: schema churn in the 5 days we've observed: 6 tool removals, 0 breaking changes, 0 auth/transport breaks, 1 additions.
- **Tool Coverage**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - 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 current MCP spec version (2026-07-28).

## Install

### How do I install the Mithrandir — free MCP gateway test server?

Mithrandir — free MCP gateway test is a hosted endpoint at https://mithrandir-production.up.railway.app/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http hyhyr2-mithrandir 'https://mithrandir-production.up.railway.app/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "hyhyr2-mithrandir": {
      "url": "https://mithrandir-production.up.railway.app/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "hyhyr2-mithrandir": {
      "type": "http",
      "url": "https://mithrandir-production.up.railway.app/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.hyhyr2-mithrandir]
url = "https://mithrandir-production.up.railway.app/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "hyhyr2-mithrandir": {
      "type": "remote",
      "url": "https://mithrandir-production.up.railway.app/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add hyhyr2-mithrandir --url 'https://mithrandir-production.up.railway.app/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  hyhyr2-mithrandir:
    url: "https://mithrandir-production.up.railway.app/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "hyhyr2-mithrandir": {
      "Transport": "http",
      "Url": "https://mithrandir-production.up.railway.app/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add hyhyr2-mithrandir -t streamable-http -u 'https://mithrandir-production.up.railway.app/mcp'
```

### Other

```json
{
  "mcpServers": {
    "hyhyr2-mithrandir": {
      "type": "http",
      "url": "https://mithrandir-production.up.railway.app/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## 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.

### 2026-09-28 (score 62, −2)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-27 (score 64, 0)

- [functional] Server version: 0.19.6 → 0.19.9

### 2026-09-26 (score 64, +1)

- [security] Tool “mithrandir_gateway_trial_start” rewrote its description, which is the text the model reads
- [functional] Server version: 0.19.4 → 0.19.6
- [functional] Server version: 0.19.2 → 0.19.4
- [functional] Server version: 0.19.0 → 0.19.2
- [functional] Server version: 0.18.1 → 0.19.0

### 2026-09-25 (score 63, +2)

- [security] The server rewrote its instructions, which are the text every model session reads
- [security] New tool “mithrandir_gateway_trial_start”, which the server declares destructive
- [functional improvement] Schema quality: 89 → 68
- [functional improvement] Stability: unverified → 0.03
- [functional] The server now declares the “resources” capability
- [functional] First check of Schema quality: 100
- [functional] New resource “Mithrandir Authority”
- [functional] New resource “Mithrandir Economics”
- [functional] New resource “Mithrandir Identity”
- [functional] New resource “Mithrandir Journey”
- [functional] New resource “Mithrandir Manifest”
- [functional] Server version: 0.18.0 → 0.18.1
- [functional] Server version: 0.17.9 → 0.18.0
- [functional] Server version: 0.17.7 → 0.17.9

### 2026-09-24 (score 61)

First indexed and scored.

## MCP tools (3)

### `mithrandir_demo` (~55 tokens)

Run a free isolated synthetic Reuse Autopilot demonstration. No production account, upload, payment or private data is used. Compare unchanged, one-partition-changed and missing-source behavior before onboarding.

Input parameters:

- `scenario`

### `mithrandir_gateway_trial_start` (~118 tokens)

Start a bounded free gateway test. Connect your public HTTPS MCP server, then approve safe reads and verify repetition before free Optimize activation.

Input parameters:

- `accept_terms` (required)
- `cache_ttl_seconds` (integer)
- `idempotency_key` (string, required)
- `min_shadow_matches` (integer)
- `name` (string, required)
- `policy_version` (string, required)
- `safe_read_tools` (array)
- `tool_costs_microusd` (object)
- `upstream_url` (string, required)

### `mithrandir_security_profile` (~65 tokens)

Free machine-readable description of the v17 Cognitive Membrane trust model: origin-bound authority, task-scoped exact-call capabilities, replay protection, egress control and two-phase effectful actions. This is a security contract description, not proof that a deployment is vulnerability-free.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/hyhyr2-mithrandir/mithrandir-production#diagnostics

## Score history

- 2026-09-29: 62
- 2026-09-28: 62
- 2026-09-27: 64
- 2026-09-26: 64
- 2026-09-25: 63
- 2026-09-24: 61

## Common questions

### What is the Mithrandir — free MCP gateway test server?

Mithrandir — free MCP gateway test is listed in the public MCP registry as io.github.Hyhyr2/mithrandir. Observe MCP tools, verify repeated reads, then try bounded exact reuse for free. This page covers its hosted endpoint (https://mithrandir-production.up.railway.app/mcp).

### Is the Mithrandir — free MCP gateway test server safe to use?

Mithrandir — free MCP gateway test scores 62 out of 100 on VerifyMCP. 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 Mithrandir — free MCP gateway test server expose?

Mithrandir — free MCP gateway test exposes 3 tools: mithrandir_demo, mithrandir_gateway_trial_start, mithrandir_security_profile. Their descriptions and schemas cost roughly 238 tokens of context every time the server is loaded.

### Does the Mithrandir — free MCP gateway test server require authentication?

No. We connected to Mithrandir — free MCP gateway test without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Mithrandir — free MCP gateway test server still maintained?

Mithrandir — free MCP gateway test is still listed as active in the MCP registry. We last reached this channel on 29 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://mithrandir-production.up.railway.app/mcp
- Website: https://mithrandir-production.up.railway.app/start
- Changelog RSS feed: https://verifymcp.io/servers/hyhyr2-mithrandir/mithrandir-production.xml
- Changelog JSON feed: https://verifymcp.io/servers/hyhyr2-mithrandir/mithrandir-production.json
- HTML version of this page: https://verifymcp.io/servers/hyhyr2-mithrandir/mithrandir-production