# io.github.alexsu1212/freebazi (npm · freebazi-mcp)

Offline Bazi (八字, Four Pillars) chart: True Solar Time, Ten Gods, Shen Sha, luck pillars.

- Trust score: 79/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-24

## Components

- npm · `freebazi-mcp`: 79/100 (this document), [markdown](https://verifymcp.io/servers/alexsu1212-freebazi/freebazi-mcp.md), [page](https://verifymcp.io/servers/alexsu1212-freebazi/freebazi-mcp)

## Channel facts

- Registry: `npm`
- Package: `freebazi-mcp`
- 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 2026-09-24.

- **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 21 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 70/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 472 tokens (~236/item across 2 items; 2 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 73/100
  - Stability observed for 22 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 2 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 2 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 io.github.alexsu1212/freebazi MCP server?

io.github.alexsu1212/freebazi runs locally as an npm package, launched with npx -y freebazi-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 alexsu1212-freebazi -- npx -y freebazi-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "alexsu1212-freebazi": {
      "command": "npx",
      "args": [
        "-y",
        "freebazi-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "alexsu1212-freebazi": {
      "command": "npx",
      "args": [
        "-y",
        "freebazi-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add alexsu1212-freebazi -- npx -y freebazi-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "alexsu1212-freebazi": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "freebazi-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add alexsu1212-freebazi --command npx --arg -y --arg freebazi-mcp
```

### Hermes

```yaml
mcp_servers:
  alexsu1212-freebazi:
    command: "npx"
    args: ["-y", "freebazi-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "alexsu1212-freebazi": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "freebazi-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add alexsu1212-freebazi -t stdio -c npx -a -y freebazi-mcp
```

### Other

```json
{
  "mcpServers": {
    "alexsu1212-freebazi": {
      "command": "npx",
      "args": [
        "-y",
        "freebazi-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.

### 2026-09-23 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-21 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-19 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-14 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-12 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-10 (score 73, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-09-03 (score 69, +15)

- [security improvement] Malware scan: unverified → pass

## MCP tools (2)

### `compute_bazi_chart` (~381 tokens)

Compute a Bazi (Four Pillars) chart

Compute a full Chinese Bazi (八字, Four Pillars of Destiny) chart from a birth date, time, and place. Returns the four pillars, Day Master, Ten Gods, Hidden Stems, Five Elements, Na Yin, Growth Stages, Shen Sha, branch relations, Luck Pillars, and the current year, computed with True Solar Time and historical daylight-saving handling. Provide a birth city (use search_cities to resolve it) for accurate true solar time, or pass longitude and utcOffset directly.

Input parameters:

- `city` (string): Birth city name, e.g. 'Taipei' or 'New York'. Resolved to longitude and IANA time zone for true solar time. Use search_cities first if unsure.
- `day` (integer, required): Birth day 1-31
- `dayRule` (string): When a new day begins: 23:00 Zi hour (default) or midnight
- `gender` (string, required): Needed for the luck-pillar direction
- `hour` (integer): Birth hour 0-23 (local clock time as recorded)
- `longitude` (number): Birth longitude in degrees East (negative = West). Use instead of city.
- `minute` (integer): Birth minute 0-59
- `month` (integer, required): Birth month 1-12
- `timeUnknown` (boolean): True if the birth time is unknown; the hour pillar is then tentative
- `trueSolarTime` (boolean): Apply true-solar-time correction (recommended)
- `utcOffset` (number): UTC offset in hours (e.g. 8 for China). Use with longitude when no city is given.
- `year` (integer, required): Birth year, e.g. 1990
- `yearRule` (string): Year boundary: Li Chun (default) or Lunar New Year

### `search_cities` (~91 tokens)

Search birth cities

Search the built-in city list (about 490 major world cities) by English or Chinese name. Returns matches with their country, longitude, and IANA time zone, so you can pass an exact city to compute_bazi_chart for accurate True Solar Time.

Input parameters:

- `query` (string, required): City name or prefix, English or Chinese, e.g. 'Taipei', '台北', 'New York'

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/alexsu1212-freebazi/freebazi-mcp#diagnostics

## Score history

- 2026-09-24: 79
- 2026-09-23: 79
- 2026-09-22: 78
- 2026-09-21: 78
- 2026-09-20: 77
- 2026-09-19: 77
- 2026-09-18: 76
- 2026-09-17: 76
- 2026-09-16: 76
- 2026-09-15: 75
- 2026-09-14: 75
- 2026-09-13: 74
- 2026-09-12: 74
- 2026-09-11: 73
- 2026-09-10: 73
- 2026-09-09: 69
- 2026-09-08: 69
- 2026-09-07: 69
- 2026-09-06: 69
- 2026-09-05: 69
- 2026-09-04: 69
- 2026-09-03: 69
- 2026-09-02: 54

## Common questions

### What is the io.github.alexsu1212/freebazi MCP server?

io.github.alexsu1212/freebazi is an MCP server listed in the public MCP registry as io.github.alexsu1212/freebazi. Offline Bazi (八字, Four Pillars) chart: True Solar Time, Ten Gods, Shen Sha, luck pillars. This page covers its npm package (freebazi-mcp).

### Is the io.github.alexsu1212/freebazi MCP server safe to use?

io.github.alexsu1212/freebazi scores 79 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 24 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 io.github.alexsu1212/freebazi MCP server expose?

io.github.alexsu1212/freebazi exposes 2 tools: compute_bazi_chart, search_cities. Their descriptions and schemas cost roughly 472 tokens of context every time the server is loaded.

### Is the io.github.alexsu1212/freebazi MCP server still maintained?

io.github.alexsu1212/freebazi is still listed as active in the MCP registry. We last reached this channel on 24 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 io.github.alexsu1212/freebazi MCP server under?

io.github.alexsu1212/freebazi 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/freebazi-mcp
- Socket report: https://socket.dev/npm/package/freebazi-mcp
- Repository: https://github.com/alexsu1212/freebazi-mcp
- Changelog RSS feed: https://verifymcp.io/servers/alexsu1212-freebazi/freebazi-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/alexsu1212-freebazi/freebazi-mcp.json
- HTML version of this page: https://verifymcp.io/servers/alexsu1212-freebazi/freebazi-mcp