SIC Codes UK
NPM · SIC-CODES-MCP · 2 COMPONENTS · SCANNED SEP 20
UK SIC code lookup, GICS/ICB mapping, and Companies House search. 731 codes, 5.6M companies.
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 Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 31 of 96 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency19
- Repository check failed: the declared repository URL returned HTTP 404. See how to fix → View diagnostics → Fail
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 99 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability78
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 779 tokens (~129/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management90
- Stability observed for 27 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
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the SIC Codes UK MCP server?
SIC Codes UK runs locally as an npm package, launched with npx -y sic-codes-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · sic-codes-mcp
claude mcp add jackmmaher-sic-codes -- npx -y sic-codes-mcp
{
"mcpServers": {
"jackmmaher-sic-codes": {
"command": "npx",
"args": [
"-y",
"sic-codes-mcp"
]
}
}
} {
"servers": {
"jackmmaher-sic-codes": {
"command": "npx",
"args": [
"-y",
"sic-codes-mcp"
]
}
}
} codex mcp add jackmmaher-sic-codes -- npx -y sic-codes-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"jackmmaher-sic-codes": {
"type": "local",
"command": [
"npx",
"-y",
"sic-codes-mcp"
],
"enabled": true
}
}
} openclaw mcp add jackmmaher-sic-codes --command npx --arg -y --arg sic-codes-mcp
mcp_servers:
jackmmaher-sic-codes:
command: "npx"
args: ["-y", "sic-codes-mcp"] {
"McpServers": {
"jackmmaher-sic-codes": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"sic-codes-mcp"
]
}
}
} assistant mcp add jackmmaher-sic-codes -t stdio -c npx -a -y sic-codes-mcp
{
"mcpServers": {
"jackmmaher-sic-codes": {
"command": "npx",
"args": [
"-y",
"sic-codes-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 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Sept 26 −3
- Stability: pass → 0.80 functional
- 16 Sept 26 0
- Stability: 0.97 → pass security
- 15 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 13 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 9 Sept 26 −3
- Stability: pass → 0.77 functional
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 npm/sic-codes-mcp@1.0.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 96 packages
| Packages resolved | 96 |
|---|---|
| Stale | 31 |
| 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 →
browse_classification_hierarchy ~116
Browse the hierarchy tree of a classification system (UK SIC 2007, GICS, or ICB). Returns child entries at the next level. Omit parent_code to get top-level entries. Use this to explore what codes exist in each system.
| Name | Type | Req | Description |
|---|---|---|---|
| parent_code | string | – | Parent code to get children of. Omit to get top-level entries (SIC sections, GICS sectors, ICB industries). |
| system | string | yes | Classification system to browse: sic, gics, or icb |
No output schema declared.
No examples provided.
convert_between_classifications ~128
Convert a classification code between UK SIC 2007, GICS (MSCI), and ICB (FTSE Russell) systems. Returns equivalent codes in the target system with confidence levels. The mapping covers all 618 SIC classes, 163 GICS sub-industries, and 173 ICB subsectors.
| Name | Type | Req | Description |
|---|---|---|---|
| code | string | yes | The classification code to convert (e.g. '6202' for SIC class, '45102030' for GICS sub-industry) |
| from | string | yes | Source classification system |
| to | string | yes | Target classification system |
No output schema declared.
No examples provided.
lookup_sic_code ~170
Look up a classification code in the UK SIC 2007, GICS (MSCI), or ICB (FTSE Russell) system. Returns the code name, hierarchy level, breadcrumb trail from root to code, child codes, and cross-classification mappings to other systems. Use this when you have a specific code and need its details.
| Name | Type | Req | Description |
|---|---|---|---|
| code | string | yes | The classification code to look up (e.g. '62020' for SIC, 'J' for SIC section, '45' for GICS sector, '1010' for ICB supersector) |
| system | string | – | Which classification system the code belongs to: sic (UK SIC 2007), gics (MSCI Global Industry Classification Standard), or icb (FTSE Russell Industry Classification Benchmark) |
No output schema declared.
No examples provided.
lookup_uk_company ~109
Look up a UK company registered at Companies House by name or registration number. Returns company details including name, status, type, incorporation date, registered address, and SIC codes with their full names and GICS/ICB mappings. Covers 5.6 million UK companies.
| Name | Type | Req | Description |
|---|---|---|---|
| company_number | string | – | Companies House registration number (e.g. '00445790') |
| query | string | – | Company name to search for (e.g. 'Tesco', 'Rolls Royce') |
No output schema declared.
No examples provided.
search_sic_codes ~118
Search for UK SIC 2007 codes by business activity description. Describe what a business does in plain English and get ranked SIC code recommendations with relevance scores, hierarchy breadcrumbs, and GICS/ICB cross-classification mappings. Useful for finding the right SIC code for Companies House registration.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | number | – | Maximum number of results to return (default 5) |
| query | string | yes | Business activity description in plain English (e.g. 'online candle shop', 'software development', 'plumbing and heating', 'restaurant') |
No output schema declared.
No examples provided.
search_uk_companies_by_industry ~138
Find UK companies registered under a specific SIC, GICS, or ICB classification code. Returns a list of companies with their details. Useful for market research, finding competitors, or understanding how many companies operate in a given industry.
| Name | Type | Req | Description |
|---|---|---|---|
| code | string | yes | Classification code to search by (e.g. '62020' for IT consultancy, '45' for GICS Energy sector) |
| limit | number | – | Maximum number of companies to return (default 20) |
| status | string | – | Filter by company status (default: active only) |
| system | string | – | Classification system the code belongs to |
No output schema declared.
No examples provided.
What is the SIC Codes UK MCP server?
SIC Codes UK is an MCP server listed in the public MCP registry as io.github.jackmmaher/sic-codes. UK SIC code lookup, GICS/ICB mapping, and Companies House search. 731 codes, 5.6M companies. This page covers its npm package (sic-codes-mcp).
Is the SIC Codes UK MCP server safe to use?
SIC Codes UK scores 78 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. It declares no install or post-install scripts. 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 SIC Codes UK MCP server expose?
SIC Codes UK exposes 6 tools: lookup_sic_code, search_sic_codes, convert_between_classifications, browse_classification_hierarchy, lookup_uk_company, search_uk_companies_by_industry. Their descriptions and schemas cost roughly 779 tokens of context every time the server is loaded.
Is the SIC Codes UK MCP server still maintained?
SIC Codes UK 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.
What licence is the SIC Codes UK MCP server under?
SIC Codes UK declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.