# Phoenix Zero — L2 Health Oracle (npm · phoenix-mcp-server)

Pre-flight L2 health check using kernel-level eBPF telemetry. PASS/DEGRADED/FAIL verdict.

- Trust score: 75/100 (medium)
- Change this week: +6
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- npm · `phoenix-mcp-server`: 75/100 (this document), [markdown](https://verifymcp.io/servers/kant19801201behax5-phoenix-mcp-server/phoenix-mcp-server.md), [page](https://verifymcp.io/servers/kant19801201behax5-phoenix-mcp-server/phoenix-mcp-server)

## Channel facts

- Registry: `npm`
- Package: `phoenix-mcp-server`
- Version: `1.0.1`
- 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 2026-09-20.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 31 of 96 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 3 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 69/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 188 tokens (~188/item across 1 items; 1 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 43/100
  - Stability observed for 13 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% 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 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 1 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.

## Install

### How do I install the Phoenix Zero — L2 Health Oracle MCP server?

Phoenix Zero — L2 Health Oracle runs locally as an npm package, launched with npx -y phoenix-mcp-server. 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 kant19801201behax5-phoenix-mcp-server -- npx -y phoenix-mcp-server
```

### Cursor

```json
{
  "mcpServers": {
    "kant19801201behax5-phoenix-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "phoenix-mcp-server"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "kant19801201behax5-phoenix-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "phoenix-mcp-server"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add kant19801201behax5-phoenix-mcp-server -- npx -y phoenix-mcp-server
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "kant19801201behax5-phoenix-mcp-server": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "phoenix-mcp-server"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add kant19801201behax5-phoenix-mcp-server --command npx --arg -y --arg phoenix-mcp-server
```

### Hermes

```yaml
mcp_servers:
  kant19801201behax5-phoenix-mcp-server:
    command: "npx"
    args: ["-y", "phoenix-mcp-server"]
```

### Netclaw

```json
{
  "McpServers": {
    "kant19801201behax5-phoenix-mcp-server": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "phoenix-mcp-server"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add kant19801201behax5-phoenix-mcp-server -t stdio -c npx -a -y phoenix-mcp-server
```

### Other

```json
{
  "mcpServers": {
    "kant19801201behax5-phoenix-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "phoenix-mcp-server"
      ]
    }
  }
}
```

## 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.

### 2026-09-20 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-15 (score 73, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-09-07 (score 69)

First indexed and scored.

## MCP tools (1)

### `preflight_network_health` (~188 tokens)

Determine whether an L2 network is currently suitable for transaction execution using kernel-level network telemetry. Returns PASS, DEGRADED, or FAIL with RTT, packet-loss and timestamp evidence. Covers 12 L2 chains (Base, Arbitrum, Optimism, zkSync, Scroll, Mantle, Linea, Blast, Mode, Taiko, Polygon zkEVM, Casper). Data sourced from eBPF XDP probes with 2-second sampling interval, signed with BLAKE3+Ed25519.

Input parameters:

- `chain` (string): L2 chain to check. Omit for aggregate health across all 12 chains.
- `metric` (string): health_check = PASS/DEGRADED/FAIL verdict (free). rtt_ns = nanosecond RTT (x402 $0.01). revert_ratio = transaction revert rate (x402 $0.01).

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/kant19801201behax5-phoenix-mcp-server/phoenix-mcp-server#diagnostics

## Score history

- 2026-09-20: 75
- 2026-09-19: 74
- 2026-09-18: 74
- 2026-09-17: 73
- 2026-09-16: 73
- 2026-09-15: 73
- 2026-09-14: 69
- 2026-09-13: 69
- 2026-09-12: 69
- 2026-09-11: 69
- 2026-09-10: 69
- 2026-09-09: 69
- 2026-09-08: 69
- 2026-09-07: 69

## Common questions

### What is the Phoenix Zero — L2 Health Oracle MCP server?

Phoenix Zero — L2 Health Oracle is an MCP server listed in the public MCP registry as io.github.kant19801201behax5/phoenix-mcp-server. Pre-flight L2 health check using kernel-level eBPF telemetry. PASS/DEGRADED/FAIL verdict. This page covers its npm package (phoenix-mcp-server).

### Is the Phoenix Zero — L2 Health Oracle MCP server safe to use?

Phoenix Zero — L2 Health Oracle scores 75 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 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 Phoenix Zero — L2 Health Oracle MCP server expose?

Phoenix Zero — L2 Health Oracle exposes 1 tool: preflight_network_health. Their descriptions and schemas cost roughly 188 tokens of context every time the server is loaded.

### Is the Phoenix Zero — L2 Health Oracle MCP server still maintained?

Phoenix Zero — L2 Health Oracle is still listed as active in the MCP registry. We last reached this channel on 20 September 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 Phoenix Zero — L2 Health Oracle MCP server under?

Phoenix Zero — L2 Health Oracle 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

- npm package: https://www.npmjs.com/package/phoenix-mcp-server
- Socket report: https://socket.dev/npm/package/phoenix-mcp-server
- Repository: https://github.com/kant19801201behax5/x402-health-oracle
- Changelog RSS feed: https://verifymcp.io/servers/kant19801201behax5-phoenix-mcp-server/phoenix-mcp-server.xml
- Changelog JSON feed: https://verifymcp.io/servers/kant19801201behax5-phoenix-mcp-server/phoenix-mcp-server.json
- HTML version of this page: https://verifymcp.io/servers/kant19801201behax5-phoenix-mcp-server/phoenix-mcp-server