# mcp-authprobe (npm · mcp-authprobe)

Active OAuth tests for remote MCP servers you own: tokens, PKCE, redirect_uri, audience, CSRF.

- Trust score: 81/100 (high trust)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-06

## Components

- npm · `mcp-authprobe`: 81/100 (this document), [markdown](https://verifymcp.io/servers/enigmacker-mcp-authprobe/mcp-authprobe.md), [page](https://verifymcp.io/servers/enigmacker-mcp-authprobe/mcp-authprobe)

## Channel facts

- Registry: `npm`
- Package: `mcp-authprobe`
- Version: `0.8.0`
- Transport: `stdio`

## 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 2026-11-06.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 0 of 15 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 100/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to Enigmacker/mcp-authprobe).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 1 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 69/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 359 tokens (~71/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 17/100
  - Stability observed for 5 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 83/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 50% 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 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 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 mcp-authprobe server?

mcp-authprobe runs locally as an npm package, launched with npx -y mcp-authprobe mcp. 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 enigmacker-mcp-authprobe -- npx -y mcp-authprobe mcp
```

### Cursor

```json
{
  "mcpServers": {
    "enigmacker-mcp-authprobe": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-authprobe",
        "mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "enigmacker-mcp-authprobe": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-authprobe",
        "mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add enigmacker-mcp-authprobe -- npx -y mcp-authprobe mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "enigmacker-mcp-authprobe": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "mcp-authprobe",
        "mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add enigmacker-mcp-authprobe --command npx --arg -y --arg mcp-authprobe --arg mcp
```

### Hermes

```yaml
mcp_servers:
  enigmacker-mcp-authprobe:
    command: "npx"
    args: ["-y", "mcp-authprobe", "mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "enigmacker-mcp-authprobe": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "mcp-authprobe",
        "mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add enigmacker-mcp-authprobe -t stdio -c npx -a -y mcp-authprobe mcp
```

### Other

```json
{
  "mcpServers": {
    "enigmacker-mcp-authprobe": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-authprobe",
        "mcp"
      ]
    }
  }
}
```

## 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.

### 2026-11-05 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-04 (score 80, 0)

- [security regression] Stability: 0.07 → unverified
- [security regression] Tool safety: pass → unverified
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified
- [functional] Package version: 0.7.0 → 0.8.0

### 2026-11-03 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 79, +11)

- [security improvement] Known CVEs: unverified → pass
- [functional improvement] Dependency health: unverified → 1.00

### 2026-11-01 (score 68)

First indexed and scored.

## MCP tools (5)

### `list_checks` (~26 tokens)

List checks

List every check with its ID, severity, mode (active or passive) and availability.

### `explain_check` (~32 tokens)

Explain a check

Explain one check: why it matters, how to fix a failure, and references.

Input parameters:

- `id` (string, required)

### `ownership_proof` (~49 tokens)

Ownership proof to publish

Return the ownership proof the user must publish for a host (well-known file or DNS TXT record) before active tests can run. The secret itself is never returned.

Input parameters:

- `host` (string, required)

### `verify_ownership` (~32 tokens)

Verify ownership proof

Check whether the ownership proof for a host is published and matches the configured secret.

Input parameters:

- `host` (string, required)

### `scan` (~148 tokens)

Scan a remote MCP server

Run discovery and, on hosts with a valid ownership proof, the active authorization tests against a remote MCP server URL. Active tests register and delete temporary OAuth clients and CONSUME the configured test grant. Only use on servers the user owns or is authorized to test, after the user confirmed.

Input parameters:

- `only` (string): Run only these checks: comma-separated IDs (MAP-RDR01 or RDR01) or families (RDR)
- `skip` (string): Do not run these checks (same syntax; wins over only), e.g. THR to avoid failed token requests
- `url` (string, required): The MCP endpoint URL, e.g. https://mcp.example.com/mcp

## Diagnostics

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

## Score history

- 2026-11-06: 81
- 2026-11-05: 81
- 2026-11-04: 80
- 2026-11-03: 80
- 2026-11-02: 79
- 2026-11-01: 68

## Common questions

### What is the mcp-authprobe server?

mcp-authprobe is listed in the public MCP registry as io.github.Enigmacker/mcp-authprobe. Active OAuth tests for remote MCP servers you own: tokens, PKCE, redirect_uri, audience, CSRF. This page covers its npm package (mcp-authprobe).

### Is the mcp-authprobe server safe to use?

mcp-authprobe scores 81 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 6 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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-authprobe server expose?

mcp-authprobe exposes 5 tools: list_checks, explain_check, ownership_proof, verify_ownership, scan. Their descriptions and schemas cost roughly 287 tokens of context every time the server is loaded.

### Is the mcp-authprobe server still maintained?

mcp-authprobe is still listed as active in the MCP registry. We last reached this channel on 6 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-authprobe server under?

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

### What did VerifyMCP test on the mcp-authprobe server?

VerifyMCP ran 16 checks on mcp-authprobe, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- npm package: https://www.npmjs.com/package/mcp-authprobe
- Socket report: https://socket.dev/npm/package/mcp-authprobe
- Repository: https://github.com/Enigmacker/mcp-authprobe
- Changelog RSS feed: https://verifymcp.io/servers/enigmacker-mcp-authprobe/mcp-authprobe.xml
- Changelog JSON feed: https://verifymcp.io/servers/enigmacker-mcp-authprobe/mcp-authprobe/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/enigmacker-mcp-authprobe/mcp-authprobe.json
- HTML version of this page: https://verifymcp.io/servers/enigmacker-mcp-authprobe/mcp-authprobe