# GoAI Moat Cross-Border Tax Compliance (remote · tax.mcp.goaimoat.com)

VAT registration, US sales-tax nexus and filing calendars for cross-border sellers

- Trust score: 60/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-26

## Components

- remote · `tax.mcp.goaimoat.com`: 60/100 (this document), [markdown](https://verifymcp.io/servers/com-goaimoat-cross-border-tax/tax.md), [page](https://verifymcp.io/servers/com-goaimoat-cross-border-tax/tax)

## Channel facts

- Endpoint: `https://tax.mcp.goaimoat.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-26.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 3 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 60/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 712 tokens (~237/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**: 7/100
  - Stability observed for 2 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 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 GoAI Moat Cross-Border Tax Compliance MCP server?

GoAI Moat Cross-Border Tax Compliance is a hosted endpoint at https://tax.mcp.goaimoat.com/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.

### Claude

```bash
claude mcp add --transport http com-goaimoat-cross-border-tax 'https://tax.mcp.goaimoat.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-goaimoat-cross-border-tax": {
      "url": "https://tax.mcp.goaimoat.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-goaimoat-cross-border-tax": {
      "type": "http",
      "url": "https://tax.mcp.goaimoat.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-goaimoat-cross-border-tax]
url = "https://tax.mcp.goaimoat.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-goaimoat-cross-border-tax": {
      "type": "remote",
      "url": "https://tax.mcp.goaimoat.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-goaimoat-cross-border-tax --url 'https://tax.mcp.goaimoat.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-goaimoat-cross-border-tax:
    url: "https://tax.mcp.goaimoat.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-goaimoat-cross-border-tax": {
      "Transport": "http",
      "Url": "https://tax.mcp.goaimoat.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-goaimoat-cross-border-tax -t streamable-http -u 'https://tax.mcp.goaimoat.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-goaimoat-cross-border-tax": {
      "type": "http",
      "url": "https://tax.mcp.goaimoat.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## 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.

### 2026-09-25 (score 60, −1)

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

### 2026-09-24 (score 61)

First indexed and scored.

## MCP tools (3)

### `vat_registration_guide` (~240 tokens)

Vat Registration Guide

VAT 注册决策树（UK/EU）：判断是否需要注册、门槛、OSS/IOSS 适用、自愿注册建议。

参数：
\- country: 目标市场，支持 "UK" / "EU"（或具体国家码如 "DE"）
\- seller_type: 卖家设立状态，"established"=当地设立主体，"netp"=非当地设立主体（如中国卖家）
\- annual_turnover_estimate: 预估年应税销售额（本地货币：UK 用英镑、EU 用欧元）
\- has_local_stock: 是否在当地有库存（如 FBA UK / 欧盟仓）

返回：是否需要注册 + 门槛 + OSS/IOSS 适用 + 市场促进者提示 + 自愿注册建议 + 逾期风险。

Input parameters:

- `annual_turnover_estimate` (number)
- `country` (string, required)
- `email` (string)
- `has_local_stock` (boolean)
- `license_key` (string)
- `seller_type` (string)

### `us_sales_tax_nexus` (~191 tokens)

Us Sales Tax Nexus

美国销售税 nexus 判定：经济 nexus / 实体 nexus → 需注册州清单 + 市场促进者代收提示。

参数：
\- states_sales: 各州销售额（美元）与交易笔数，如 {"CA": {"sales": 520000, "transactions": 50},
  "TX": {"sales": 30000, "transactions": 300}}（缺省则返回框架说明）
\- has_physical_presence: 是否在美有实体存在（自有仓库/办公室/员工/返货点）

返回：逐州 nexus 判定 + 市场促进者（Amazon/Walmart/eBay）代收提示 + 实体 nexus 警示。

Input parameters:

- `email` (string)
- `has_physical_presence` (boolean)
- `license_key` (string)
- `states_sales` (object)

### `tax_filing_planner` (~115 tokens)

Tax Filing Planner

申报义务日历：申报频率 + 截止日节奏 + 记录保存要求 + 逾期风险（UK/EU/US）。

参数：
\- market: 目标市场，"UK" / "EU" / "US"

返回：该市场的申报频率、截止日节奏、记录保存年限、逾期风险。

Input parameters:

- `email` (string)
- `license_key` (string)
- `market` (string, required)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-goaimoat-cross-border-tax/tax#diagnostics

## Score history

- 2026-09-26: 60
- 2026-09-25: 60
- 2026-09-24: 61

## Common questions

### What is the GoAI Moat Cross-Border Tax Compliance MCP server?

GoAI Moat Cross-Border Tax Compliance is an MCP server listed in the public MCP registry as com.goaimoat/cross-border-tax. VAT registration, US sales-tax nexus and filing calendars for cross-border sellers. This page covers its hosted endpoint (https://tax.mcp.goaimoat.com/mcp).

### Is the GoAI Moat Cross-Border Tax Compliance MCP server safe to use?

GoAI Moat Cross-Border Tax Compliance scores 60 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 GoAI Moat Cross-Border Tax Compliance MCP server expose?

GoAI Moat Cross-Border Tax Compliance exposes 3 tools: vat_registration_guide, us_sales_tax_nexus, tax_filing_planner. Their descriptions and schemas cost roughly 546 tokens of context every time the server is loaded.

### Does the GoAI Moat Cross-Border Tax Compliance MCP server require authentication?

No. We connected to GoAI Moat Cross-Border Tax Compliance without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the GoAI Moat Cross-Border Tax Compliance MCP server still maintained?

GoAI Moat Cross-Border Tax Compliance is still listed as active in the MCP registry. We last reached this channel on 26 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://tax.mcp.goaimoat.com/mcp
- Repository: https://github.com/jayniebingyu-cyber/goaimoat-ai-visibility-mcp
- Website: https://goaimoat.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-goaimoat-cross-border-tax/tax.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-goaimoat-cross-border-tax/tax.json
- HTML version of this page: https://verifymcp.io/servers/com-goaimoat-cross-border-tax/tax