Metadata-Version: 2.4
Name: gb-eli-mcp
Version: 0.1.0
Summary: MCP server for UK legislation (legislation.gov.uk) — search and fetch Acts and Statutory Instruments with persistent identifiers and verifiable citations.
Project-URL: Repository, https://github.com/matematicsolutions/gb-eli-mcp
Project-URL: Issues, https://github.com/matematicsolutions/gb-eli-mcp/issues
Project-URL: Homepage, https://matematic.co
Author-email: Matematic Solutions <kontakt@matematic.co>, Wieslaw Mazur <mazur.wieslaw2022@gmail.com>
License: Apache-2.0
License-File: LICENSE
Keywords: law,legaltech,legislation.gov.uk,mcp,uk,united-kingdom
Classifier: Development Status :: 3 - Alpha
Classifier: Intended Audience :: Legal Industry
Classifier: License :: OSI Approved :: Apache Software License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3.12
Classifier: Topic :: Office/Business
Requires-Python: >=3.11
Requires-Dist: anyio>=4.3
Requires-Dist: diskcache>=5.6
Requires-Dist: fastmcp>=0.2.0
Requires-Dist: httpx>=0.27
Requires-Dist: pydantic>=2.6
Provides-Extra: dev
Requires-Dist: mypy>=1.10; extra == 'dev'
Requires-Dist: pytest-asyncio>=0.23; extra == 'dev'
Requires-Dist: pytest>=8.0; extra == 'dev'
Requires-Dist: ruff>=0.5; extra == 'dev'
Description-Content-Type: text/markdown

# gb-eli-mcp

<!-- mcp-name: io.github.matematicsolutions/gb-eli-mcp -->

An MCP server for **legislation.gov.uk**, The National Archives' official portal for
United Kingdom legislation. It searches and retrieves Acts of Parliament, UK Statutory
Instruments, and the equivalent instruments of the Scottish Parliament, Senedd
Cymru/Welsh Parliament and Northern Ireland Assembly, with persistent identifiers and
verifiable citations.

Part of the MateMatic `eu-legal-mcp` production line: the UK counterpart of the Polish
`sejm-eli-mcp` and the German `de-eli-mcp`, built on the same architecture and citation
contract against the UK's own source.

> **No native ELI.** legislation.gov.uk does not publish a native `/eli/` namespace
> (confirmed live: `GET /eli/ukpga/2018/12` returns 404), even though its own
> persistent-identifier scheme predates and is closely related to ELI - the UK is widely
> credited with pioneering the URI-based legislation-identifier concept that ELI later
> formalised EU-wide. `eli_uri` therefore carries the UK's own stable id URI
> (`https://www.legislation.gov.uk/id/{type}/{year}/{number}`) instead of a fabricated
> ELI path - the same disclosure pattern used by this factory's `nl-eli-mcp` and
> `se-eli-mcp`. See `CONSTITUTION.md` Art. 4.
>
> **Licence.** Content is published under the **Open Government Licence v3.0**
> (confirmed live from the site's own `/help` page), which permits copying, publishing
> and adapting with attribution. This connector only relays that public content, with a
> `source_url` on every response.

## The four tools

| Tool | What it does |
|---|---|
| `gb_search` | Search legislation by text, doc type and year (`/all/data.feed` or `/{doc_type}/data.feed`). |
| `gb_get_act` | Fetch act/instrument metadata by reference (e.g. `ukpga/2018/12`). |
| `gb_get_text` | Fetch the full text (`xml`, `html`, `akn`/Akoma Ntoso, `rdf`, `pdf`, `csv`). |
| `gb_recent_legislation` | Legislation published since a date, newest-first, optionally by doc type. |

Every response carries the contract: `eli_uri`
(e.g. `https://www.legislation.gov.uk/id/ukpga/2018/12`), `human_readable_citation`
(e.g. `Data Protection Act 2018 c. 12`), and `source_url`.

## Install

```bash
cd gb-eli-mcp
pip install -e .
```

## Configure (Claude Code / any MCP client)

Copy `.mcp.json.example` and adjust if needed:

```json
{
  "mcpServers": {
    "gb-eli-mcp": { "command": "gb-eli-mcp" }
  }
}
```

Environment:

- `GB_ELI_BASE_URL` - default `https://www.legislation.gov.uk`
- `GB_ELI_CACHE_DIR` - default `~/.matematic/cache/gb-eli`
- `GB_ELI_AUDIT_DIR` - default `~/.matematic/audit`

No API key. legislation.gov.uk is keyless.

## Governance

- **Public data only** - read-only against legislation.gov.uk; no client data leaves the
  machine beyond search parameters.
- **Audit log** - every tool call appends one JSON line to
  `~/.matematic/audit/gb-eli-mcp.jsonl`.
- **Vendor-neutral** - the server talks only to legislation.gov.uk and the local
  filesystem; no LLM provider, no telemetry.
- **Verifiable citations** - every response is independently checkable via `source_url`.

See `CONSTITUTION.md` (the binding rules) and `DISCOVERY.md` (the live API probe).

## Tests

```bash
pip install -e ".[dev]"
pytest tests/test_instructions_drift.py -v   # offline
pytest tests/test_smoke.py -v                # hits live legislation.gov.uk
```

## Licence

Apache-2.0. (c) Matematic Solutions / Wieslaw Mazur.

Note: the *code* in this repository is Apache-2.0. The *legislation content* fetched at
runtime from legislation.gov.uk remains Crown copyright, published under the Open
Government Licence v3.0 - not relicensed by this project.
