GoAI Moat Cross-Border Tax Compliance
REMOTE · TAX.MCP.GOAIMOAT.COM · SCANNED SEP 26
VAT registration, US sales-tax nexus and filing calendars for cross-border sellers
Available components
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. How we score → Why this is hard to score →
Endpoint Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- 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. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability60
- AI-judged instruction clarity (good).Pass
- 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. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management7
- Stability observed for 2 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage71
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
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.
remote · tax.mcp.goaimoat.com
claude mcp add --transport http com-goaimoat-cross-border-tax 'https://tax.mcp.goaimoat.com/mcp'
{
"mcpServers": {
"com-goaimoat-cross-border-tax": {
"url": "https://tax.mcp.goaimoat.com/mcp"
}
}
} {
"servers": {
"com-goaimoat-cross-border-tax": {
"type": "http",
"url": "https://tax.mcp.goaimoat.com/mcp"
}
}
} [mcp_servers.com-goaimoat-cross-border-tax] url = "https://tax.mcp.goaimoat.com/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-goaimoat-cross-border-tax": {
"type": "remote",
"url": "https://tax.mcp.goaimoat.com/mcp",
"enabled": true
}
}
} openclaw mcp add com-goaimoat-cross-border-tax --url 'https://tax.mcp.goaimoat.com/mcp' --transport streamable-http
mcp_servers:
com-goaimoat-cross-border-tax:
url: "https://tax.mcp.goaimoat.com/mcp" {
"McpServers": {
"com-goaimoat-cross-border-tax": {
"Transport": "http",
"Url": "https://tax.mcp.goaimoat.com/mcp"
}
}
} assistant mcp add com-goaimoat-cross-border-tax -t streamable-http -u 'https://tax.mcp.goaimoat.com/mcp'
{
"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.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 25 Sept 26 −1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Sept 26 61
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 26 Sept 2026 · Probed https://tax.mcp.goaimoat.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=tax.mcp.goaimoat.com | CN=YE2,O=Let's Encrypt,C=US | 24 Sept 2026 | 23 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 60717733008b3f70239c867cb9ea97a532e |
| SANs: tax.mcp.goaimoat.com | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of tax.mcp.goaimoat.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| goaimoat.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://tax.mcp.goaimoat.com/mcp | Verified | 200 | |
| http (plaintext) | http://tax.mcp.goaimoat.com/mcp | HTTPS enforced | 301 | https://tax.mcp.goaimoat.com/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
tax_filing_planner Tax Filing Planner ~115
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。
| Name | Type | Req | Description |
|---|---|---|---|
| string | – | – | |
| license_key | string | – | – |
| market | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
us_sales_tax_nexus Us Sales Tax Nexus ~191
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。
| Name | Type | Req | Description |
|---|---|---|---|
| string | – | – | |
| has_physical_presence | boolean | – | – |
| license_key | string | – | – |
| states_sales | object | – | – |
Structured output declared, but exposes no named fields.
No examples provided.
vat_registration_guide Vat Registration Guide ~240
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。
| Name | Type | Req | Description |
|---|---|---|---|
| annual_turnover_estimate | number | – | – |
| country | string | yes | – |
| string | – | – | |
| has_local_stock | boolean | – | – |
| license_key | string | – | – |
| seller_type | string | – | – |
Structured output declared, but exposes no named fields.
No examples provided.
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.