Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
MCP server for Lithuanian legislation (TAR via data.gov.lt) with verifiable citations.
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Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"lt-eli": {
"command": "uvx",
"args": [
"lt-eli-mcp"
]
}
}
}Run this in your terminal
claude mcp add lt-eli -- uvx lt-eli-mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"lt-eli": {
"command": "uvx",
"args": [
"lt-eli-mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"lt-eli": {
"type": "stdio",
"command": "uvx",
"args": [
"lt-eli-mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
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Runs on your computer; the tool list appears in your AI app after you install it.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
The registry name was verified with the GitHub account matematicsolutions, which owns the repo
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This one runs on your computer; there is no internet endpoint
Runs on your computer and uses local settings instead
Runs on your computer; we can only read tool lists from internet endpoints
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It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
The GitHub repo last changed –, and the latest version (0.3.3) reached the registry 2 months ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.
In the same category: Spec Driven Development, Remote Desktop Commander, LexPact UK Contracts
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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
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An MCP server for the Lithuanian Register of Legal Acts (TAR) via the data.gov.lt open-data API. It searches Lithuanian legislation by title and fetches full text, with verifiable citations.
Part of the MateMatic eu-legal-mcp production line - after PL, DE, AT, ES, FI, IE, NL, SE, FR, LU, DK, CZ and HR. Same citation contract, TAR source. This connector reads a REST-JSON open-data API (the data.gov.lt Spinta endpoint).
Scope. This MVP searches acts by title substring, returns metadata, and fetches the full
Lithuanian text. ~CC BY 4.0 open data; acts are addressed by their TAR code (
tar_kodas).
Language: Lithuanian. Every response carries a
dataset_note.
ELI is national, not data.europa.eu. Lithuania has no
data.europa.euELI for the TAR
dataset.
eli_uricarries the canonicale-tar.ltlegalAct URL (the stable national
identifier), which is also the
source_url. Every response carries aneli_notesaying so.
| Tool | What it does |
|---|---|
lt_search | Find acts whose title contains a substring (optionally by type). |
lt_get_act | Metadata for an act by its TAR code. |
lt_get_text | Full Lithuanian text of an act by its TAR code. |
lt_coverage | Declare what this connector covers, when each family was captured, and - explicitly - what it does NOT cover. Every gap carries a fallback. |
Every response carries the contract: eli_uri (the e-tar.lt URL, e.g. https://e-tar.lt/portal/lt/legalAct/...), human_readable_citation (title + official number), and source_url.
As a Claude plugin (Claude Code or the desktop app, needs uv); see plugin/README.md for what it sends and stores:
/plugin marketplace add matematicsolutions/lt-eli-mcp
/plugin install lt-eli-mcp@lt-eli-mcp
Run it with no install step (published on PyPI):
uvx lt-eli-mcp
Or from source:
cd lt-eli-mcp
pip install -e .
{
"mcpServers": { "lt-eli-mcp": { "command": "lt-eli-mcp" } } }
Smart App Control blocks unsigned executables, which covers uvx.exe, pip.exe and the lt-eli-mcp.exe launcher that pip writes at install time. The python.exe and py.exe from the python.org installer are signed by the Python Software Foundation, so running the module through the interpreter works:
python -m pip install lt-eli-mcp
python -m lt_eli_mcp
pip.exe is blocked for the same reason, so install with python -m pip, not pip install. If python is not on PATH, use the Windows launcher: py -3 -m lt_eli_mcp.
{ "mcpServers": { "lt-eli-mcp": { "command": "python", "args": ["-m", "lt_eli_mcp"] } } }
Do not turn Smart App Control off to work around this - it cannot be re-enabled without reinstalling Windows.
Environment:
LT_ELI_BASE_URL - default https://get.data.gov.ltLT_ELI_CACHE_DIR - default ~/.matematic/cache/lt-eliLT_ELI_AUDIT_DIR - default ~/.matematic/auditNo API key. The data.gov.lt open-data API is keyless.
~/.matematic/audit/lt-eli-mcp.jsonl.lt-runtime.json.gz, updated source addresses) from this repository's GitHub Releases. That request carries no query content; GitHub's download counter for the file is the only usage signal we see. LT_ELI_RUNTIME_URL="" turns it off; the Claude plugin ships with it off. No LLM provider, no other telemetry.source_url.See CONSTITUTION.md and DISCOVERY.md.
pip install -e ".[dev]"
pytest tests/test_instructions_drift.py tests/test_parse.py -v # offline pytest tests/test_smoke.py -v # hits live data.gov.lt
Apache-2.0. © Matematic Solutions / Wieslaw Mazur. TAR data is CC BY 4.0; relayed with attribution and a source_url.