# io.github.aitorgarcia21/ifg-tax (npm · ifg-mcp-server)

International tax research — 213 jurisdictions, 500K+ legal documents.

- Trust score: 63/100 (medium)
- Change this week: +24
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `ifg-mcp-server`: 63/100 (this document), [markdown](https://verifymcp.io/servers/aitorgarcia21-ifg-tax/ifg-mcp-server.md), [page](https://verifymcp.io/servers/aitorgarcia21-ifg-tax/ifg-mcp-server)

## Channel facts

- Registry: `npm`
- Package: `ifg-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 2026-08-03.

- **Supply Chain Security**: 86/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 19/100
  - Repository check failed: the declared repository URL returned HTTP 404.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 157 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 71/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 517 tokens (~172/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 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.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add aitorgarcia21-ifg-tax -- npx -y ifg-mcp-server
```

### Codex

```bash
codex mcp add aitorgarcia21-ifg-tax -- npx -y ifg-mcp-server
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "aitorgarcia21-ifg-tax": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "ifg-mcp-server"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add aitorgarcia21-ifg-tax --command npx --arg -y --arg ifg-mcp-server
```

### Hermes

```yaml
mcp_servers:
  aitorgarcia21-ifg-tax:
    command: "npx"
    args: ["-y", "ifg-mcp-server"]
```

### Other

```json
{
  "mcpServers": {
    "aitorgarcia21-ifg-tax": {
      "command": "npx",
      "args": [
        "-y",
        "ifg-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.

### 2026-08-03 (score 63, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-08-02 (score 59, +59)

- [security regression] Provenance: unverified → fail
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Install scripts: unverified → pass
- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] License: unverified → pass
- [functional improvement] Tool coverage: unverified → 100
- [functional] Licence: MIT

### 2026-08-01 (score 0, −29)

- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified

### 2026-07-31 (score 29, −25)

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

### 2026-07-30 (score 54, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-29 (score 72, +53)

- [security regression] Provenance: unverified → fail
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Install scripts: unverified → pass
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] License: unverified → pass
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] Schema quality: unverified → excellent
- [functional] Licence: MIT

### 2026-07-28 (score 19, −20)

- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Dependency health: unverified → partial
- [functional] First check of Schema quality: unverified

### 2026-07-27 (score 39)

First indexed and scored.

## MCP tools (3)

### `search_tax_law` (~247 tokens)

Search international tax legislation, regulations, case law, and administrative doctrine across 213 jurisdictions. Covers: income tax (CIT/PIT), VAT/GST, withholding tax (WHT), transfer pricing, tax treaties, CFC rules, anti-avoidance (GAAR), exit tax, holding regimes, R&D incentives, and more. Returns sourced legal texts with citations and URLs from official government sources. Always use this tool when answering tax-related questions to ensure accuracy.

Input parameters:

- `countries` (array): ISO-2 country codes to filter results. E.g. ["FR", "DE", "US"]. Omit for global search.
- `limit` (number): Number of results to return (1-20). Default: 8. Use higher values for comparative research.
- `query` (string, required): Natural language tax question or search terms. Be specific — include jurisdiction, tax type, and year when possible. Examples: "France corporate tax rate 2026", "Singapore holding company exemption",…
- `tags` (array): Fiscal domain tags to narrow results. E.g. ["cit", "treaty"]

### `get_tax_treaty` (~142 tokens)

Find bilateral tax treaty provisions between two countries. Searches for convention articles on dividends, interest, royalties, capital gains, permanent establishment, and other treaty provisions. Includes MLI (Multilateral Instrument) positions and reservations when available.

Input parameters:

- `country_a` (string, required): First country ISO-2 code (e.g. "FR")
- `country_b` (string, required): Second country ISO-2 code (e.g. "DE")
- `topic` (string): Specific treaty topic. E.g. "dividends withholding rate", "permanent establishment definition", "interest exemption", "royalties", "capital gains on shares", "mutual agreement procedure"

### `compare_tax_regimes` (~128 tokens)

Compare tax regimes across multiple jurisdictions on a specific topic. Searches each jurisdiction separately and presents results side by side. Useful for structuring advice, choosing holding locations, or comparing rates and rules.

Input parameters:

- `countries` (array, required): ISO-2 country codes to compare (2-8 countries). E.g. ["FR", "NL", "LU", "IE"]
- `topic` (string, required): Tax topic to compare across jurisdictions. E.g. "corporate tax rate and surcharges", "CFC rules and substance requirements", "R&D tax credit", "participation exemption for dividends"

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/aitorgarcia21-ifg-tax/ifg-mcp-server#diagnostics

## Score history

- 2026-08-03: 63
- 2026-08-02: 59
- 2026-08-01: 0
- 2026-07-31: 29
- 2026-07-30: 54
- 2026-07-29: 72
- 2026-07-28: 19
- 2026-07-27: 39

## Links

- npm package: https://www.npmjs.com/package/ifg-mcp-server
- Socket report: https://socket.dev/npm/package/ifg-mcp-server
- Changelog RSS feed: https://verifymcp.io/servers/aitorgarcia21-ifg-tax/ifg-mcp-server/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/aitorgarcia21-ifg-tax/ifg-mcp-server/changelog.json
- HTML version of this page: https://verifymcp.io/servers/aitorgarcia21-ifg-tax/ifg-mcp-server