GoodbyeMatrix MCP server

Which servers in the official MCP registry are GoodbyeMatrix's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-19

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Whose server it is

Registry namecom.goodbyematrix/citizenship-by-investmentverified in the MCP registry

The registry name sits under goodbyematrix.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-19

Stateanswerschecked 2026-10-19
Tools3
Server calls itselfgoodbyematrix-cbi
Server version1.0.0
Protocol version2025-06-18

On 2026-10-19 the server answered initialize and tools/list without a sign-in. First answer in 557 ms.

Should an agent connect itNot proven either way yet

Whether its tools do the product's job has not been judged yet.
Checked on 3 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 3, the first on 2026-10-19

INITE MCP scoreafter a weeka score needs 7 daily checks: 3 so far
Answeredmeasuring3 of the 7 daily checks it takes to print a share
Median first answer545 ms
Space in an agent's context≈ 1,877 tokensthe definitions of all its tools (3), which an agent carries on every turn
Tool definitionsA · 100 of 100
Typed results3 of 3 toolsdeclared outputSchema: results come typed, read once

Every tool passes all six checks.

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers3 tools · read 2026-10-19

list_cbi_programs
For questions about which citizenship by investment (second passport) programmes exist or what they start from: lists the 9 programmes GoodbyeMatrix prices (St Kitts and Nevis, Antigua and Barbuda, Dominica, Grenada, Saint Lucia, Vanuatu…
get_cbi_quote
Answers how much citizenship by investment or a second passport costs for a person or family, or compares programmes by total cost. Calculates the indicative cost for a family: government contribution, investment, fees, professional fees…
request_cost_breakdown_link
Returns only the personal link (quoteRequestUrl) for one programme and family: the calculator page on goodbyematrix.com with the family already filled in, where the user requests the detailed cost breakdown with the exact amounts by…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "citizenship-by-investment": {
      "type": "http",
      "url": "https://ai.goodbyematrix.com/cbi/api/agent/v1/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http goodbyematrix https://ai.goodbyematrix.com/cbi/api/agent/v1/mcp

Add to Cursor Add to VS Code

claude.ai, ChatGPT and other clients: add https://ai.goodbyematrix.com/cbi/api/agent/v1/mcp as a custom connector in the settings.

Other servers listed as GoodbyeMatrix's

com.goodbyematrix/residency-indexanswers, 9 toolsverified in the MCP registry

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.