BAILII UK Case Law
PYPI · BAILII-MCP · SCANNED SEP 20
Search UK case law on BAILII — court judgments with section extraction. Runs locally.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- Runs hatchling.build at install time, a recognised native-build step with no shell scripting around it. View diagnostics → Pass
- 1 of 25 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency32
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- License check failed: no license is declared. See how to fix → Fail
- Actively maintained (last published 152 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability79
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 298 tokens (~99/item across 3 items; 3 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management87
- Stability observed for 26 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
How do I install the BAILII UK Case Law MCP server?
BAILII UK Case Law runs locally as a PyPI package, launched with uvx bailii-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
pypi · bailii-mcp
claude mcp add paulieb89-bailii-mcp -- uvx bailii-mcp
{
"mcpServers": {
"paulieb89-bailii-mcp": {
"command": "uvx",
"args": [
"bailii-mcp"
]
}
}
} {
"servers": {
"paulieb89-bailii-mcp": {
"command": "uvx",
"args": [
"bailii-mcp"
]
}
}
} codex mcp add paulieb89-bailii-mcp -- uvx bailii-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"paulieb89-bailii-mcp": {
"type": "local",
"command": [
"uvx",
"bailii-mcp"
],
"enabled": true
}
}
} openclaw mcp add paulieb89-bailii-mcp --command uvx --arg bailii-mcp
mcp_servers:
paulieb89-bailii-mcp:
command: "uvx"
args: ["bailii-mcp"] {
"McpServers": {
"paulieb89-bailii-mcp": {
"Transport": "stdio",
"Command": "uvx",
"Arguments": [
"bailii-mcp"
]
}
}
} assistant mcp add paulieb89-bailii-mcp -t stdio -c uvx -a bailii-mcp
{
"mcpServers": {
"paulieb89-bailii-mcp": {
"command": "uvx",
"args": [
"bailii-mcp"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 20 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 19 Sept 26 −3
- Stability: pass → 0.83 functional
- 18 Sept 26 +1
- Stability: 0.97 → pass security
- 16 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 −3
- Stability: pass → 0.80 functional
- 11 Sept 26 +1
- Stability: 0.97 → pass security
- 9 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Analysed pypi/bailii-mcp@1.0.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | pypi |
Background: How many MCP packages publish verified provenance →
Install scripts 1 script
| Hook | Tier | Command |
|---|---|---|
| build_backend | allowlisted | hatchling.build |
Background: Why install scripts are a supply-chain risk →
Dependencies 25 packages
| Packages resolved | 25 |
|---|---|
| Stale | 1 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
bailii_get_judgment Get BAILII Judgment Text ~128
Retrieve a BAILII judgment, optionally filtered to a specific section. Use the path returned by bailii_search. By default returns summary + conclusions (or first 5000 chars if no sections detected). Use section='all' for the complete text.
| Name | Type | Req | Description |
|---|---|---|---|
| params | object | yes | Input containing: - path (str): BAILII document path - section (str, optional): 'summary', 'conclusions', 'held', 'discussion', 'background', 'all' - max_chars (int, optional): Maximum characters to… |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
bailii_list_courts List Available BAILII Courts ~58
List the main UK courts and tribunals available on BAILII. Returns court codes useful for constructing direct BAILII URLs or understanding search results. Returns: str: JSON object mapping court codes to court names.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
bailii_search Search BAILII Case Law ~112
Search BAILII for UK case law by keyword or phrase. Searches the full BAILII database including UKSC, EWCA, EWHC, House of Lords, tribunals, and Irish courts. Returns a list of matching cases with titles, citations, and document paths to use with bailii_get_judgment.
| Name | Type | Req | Description |
|---|---|---|---|
| params | object | yes | Search parameters containing: - query (str): Search terms - max_results (int): Number of results to return (default 10) |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
What is the BAILII UK Case Law MCP server?
BAILII UK Case Law is an MCP server listed in the public MCP registry as io.github.paulieb89/bailii-mcp. Search UK case law on BAILII, court judgments with section extraction. Runs locally. This page covers its PyPI package (bailii-mcp).
Is the BAILII UK Case Law MCP server safe to use?
BAILII UK Case Law scores 81 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the BAILII UK Case Law MCP server expose?
BAILII UK Case Law exposes 3 tools: bailii_search, bailii_get_judgment, bailii_list_courts. Their descriptions and schemas cost roughly 298 tokens of context every time the server is loaded.
Is the BAILII UK Case Law MCP server still maintained?
BAILII UK Case Law is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.