Mithrandir — free MCP gateway test
REMOTE · MITHRANDIR-PRODUCTION.UP.RAILWAY.APP · SCANNED SEP 29
Observe MCP tools, verify repeated reads, then try bounded exact reuse for free.
Available components
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. How we score → Why this is hard to score →
Endpoint Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (mithrandir_gateway_trial_start). See how to fix → View diagnostics → Fail
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability76
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 369 tokens (~46/item across 8 items; 3 tools + 5 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability check failed: schema churn in the 5 days we've observed: 6 tool removals, 0 breaking changes, 0 auth/transport breaks, 1 additions. See how to fix → Fail
Tool Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
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.
remote · mithrandir-production.up.railway.app
claude mcp add --transport http hyhyr2-mithrandir 'https://mithrandir-production.up.railway.app/mcp'
{
"mcpServers": {
"hyhyr2-mithrandir": {
"url": "https://mithrandir-production.up.railway.app/mcp"
}
}
} {
"servers": {
"hyhyr2-mithrandir": {
"type": "http",
"url": "https://mithrandir-production.up.railway.app/mcp"
}
}
} [mcp_servers.hyhyr2-mithrandir] url = "https://mithrandir-production.up.railway.app/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"hyhyr2-mithrandir": {
"type": "remote",
"url": "https://mithrandir-production.up.railway.app/mcp",
"enabled": true
}
}
} openclaw mcp add hyhyr2-mithrandir --url 'https://mithrandir-production.up.railway.app/mcp' --transport streamable-http
mcp_servers:
hyhyr2-mithrandir:
url: "https://mithrandir-production.up.railway.app/mcp" {
"McpServers": {
"hyhyr2-mithrandir": {
"Transport": "http",
"Url": "https://mithrandir-production.up.railway.app/mcp"
}
}
} assistant mcp add hyhyr2-mithrandir -t streamable-http -u 'https://mithrandir-production.up.railway.app/mcp'
{
"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.
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.
- 28 Sept 26 −2
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Sept 26 0
- Server version: 0.19.6 → 0.19.9 functional
- 26 Sept 26 +1
- Tool “mithrandir_gateway_trial_start” rewrote its description, which is the text the model reads security
- 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 functional
- 25 Sept 26 +2
- 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 security
- Schema quality: 89 → 68 ▲ functional
- 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 functional
- 24 Sept 26 61
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 29 Sept 2026 · Probed https://mithrandir-production.up.railway.app/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.up.railway.app | CN=YE2,O=Let's Encrypt,C=US | 27 Sept 2026 | 26 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 618edc56941aa1165ddb080bf9f799eb7c1 |
| SANs: *.up.railway.app, up.railway.app | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mithrandir-production.up.railway.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| railway.app. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | no-referrer |
| permissions-policy | camera=(), microphone=(), geolocation=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mithrandir-production.up.railway.app/mcp | Verified | 200 | |
| http (plaintext) | http://mithrandir-production.up.railway.app/mcp | HTTPS enforced | 301 | https://mithrandir-production.up.railway.app/mcp |
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 →
mithrandir_demo ~55
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.
| Name | Type | Req | Description |
|---|---|---|---|
| scenario | – | – | – |
No output schema declared.
No examples provided.
mithrandir_gateway_trial_start ~118
Start a bounded free gateway test. Connect your public HTTPS MCP server, then approve safe reads and verify repetition before free Optimize activation.
| Name | Type | Req | Description |
|---|---|---|---|
| accept_terms | – | yes | – |
| cache_ttl_seconds | integer | – | – |
| idempotency_key | string | yes | – |
| min_shadow_matches | integer | – | – |
| name | string | yes | – |
| policy_version | string | yes | – |
| safe_read_tools | array | – | – |
| tool_costs_microusd | object | – | – |
| upstream_url | string | yes | – |
No output schema declared.
No examples provided.
mithrandir_security_profile ~65
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
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.