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Revenue Administration MCP Server
A retrieval-only MCP server answering Turkish tax and regulation questions strictly from official government sources - zero hallucinations.
0 · Hallucinations · On in-scope questions
The challenge
General-purpose LLMs are unreliable on Turkish tax law and regulation. Asked about a specific rule, they invent article numbers, misquote percentages, and blur outdated provisions with current ones. In a legal and fiscal setting, a confident but wrong answer is more dangerous than no answer at all, because it looks authoritative.
The goal was an assistant that could answer questions about Turkish regulations while guaranteeing that every statement traces back to an official source - and that refuses to answer anything it cannot ground in those documents.
The approach
I developed a Model Context Protocol (MCP) server that interfaces directly with official government websites to retrieve authoritative source material - the constitution, regulations, circulars, rulings and related legal texts - at query time.
The system is retrieval-only by design: it never answers from the model's parametric memory. Every response is grounded in text pulled live from official sources, and if the retrieved documents do not contain the answer, the server says so instead of guessing. This strict grounding is what eliminates hallucinations on in-scope questions.
Because it speaks MCP, the server plugs cleanly into MCP-compatible AI clients, giving them a trustworthy, source-cited channel for Turkish regulatory questions rather than an unverified best guess.
The outcome
Results that moved the needle.
- 0 · Hallucinations
-
On in-scope questions
Answers grounded exclusively in retrieved official text
- 100%
-
Source-cited responses
Every answer traces back to an official government source
- Official
-
Sources only
Constitution, regulations, circulars and rulings, retrieved live
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