DoubleTaxation
Tax residence between two countries: treaty tie-breaker, taxes, legal sources, per-income rules.
What it does
DoubleTaxation is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
No capability identified yet from its description.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 3h ago (live check)Hosted endpoint
https://doubletaxation.app/api/mcpstreamable-http
In Claude Code: claude mcp add --transport http doubletaxation https://doubletaxation.app/api/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"doubletaxation": {
"url": "https://doubletaxation.app/api/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 3h agoONLINE DoubleTaxation answered an MCP connection on 05 Nov 2026 and introduced itself as doubletaxation 1.0.0 (MCP protocol 2025-06-18).
4 tools offered to AI assistants
list_versions· Lists the 12 versions of DoubleTaxation. Each version is written for taxpayers of one home state (in its language) and compares it with 20 other countries. Call this first if you are not sure which version fits the user.list_countries· Lists the countries that can be checked against the home state of a version: whether a tax treaty is in force (title, dates, link), whether per-income treaty rules and tax burden data exist, plus the allowed citizenship options and years focheck_residency· Determines the person's tax residence between the version's home state and another country, step by step. Without all answers it returns status "needs_answer" and the next question (id, text, options); ask the user and call again with all atax_burden· Income tax and social contributions on an annual salary in one or more countries (OECD Taxing Wages method: single person, no children, full-year employee). Returns net pay, personal rate, tax wedge and marginal rate, sorted from lowest to
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Hosted endpoint | https://doubletaxation.app/api/mcp | DECLARED | SRC-001 Official MCP Registry | 2h ago |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | 2h ago |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | 2h ago |
| Website | https://doubletaxation.app/en/mcp/ | DECLARED | SRC-001 Official MCP Registry | 2h ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 2h ago |
| Version | 1.0.0 | DECLARED | SRC-001 Official MCP Registry | 2h ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 2h ago |
Change history
- NEW05 Nov 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is DoubleTaxation still online?
Free alerts · no account▲ 0Do you run DoubleTaxation? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
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<a href="https://electraindex.com/mcp/doubletaxation?utm_source=badge&utm_medium=share&utm_campaign=listing"><img src="https://electraindex.com/api/badge/doubletaxation" alt="Listed on Electra Index"></a>Questions about DoubleTaxation
How do I connect DoubleTaxation?
Use the hosted endpoint https://doubletaxation.app/api/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does DoubleTaxation offer?
When Electra Index connected on 05 Nov 2026, it listed 4 tools: list_versions, list_countries, check_residency, tax_burden. The full list is in "Live check" above.
Is DoubleTaxation online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 3h ago.