io.github.sellisd/mcp-units
PYPI · MCP-UNITS · SCANNED SEP 22
An MCP server that provides some common units conversions for cooking
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 Security32
- Malware scan not yet available for this package.Unverified
- CVE check failed: a known high-severity CVE affects mcp 1.15.0, a direct dependency. A fixed version is available. View diagnostics → Fail
- Runs hatchling.build at install time, a recognised native-build step with no shell scripting around it. View diagnostics → Pass
- 2 of 38 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency30
- 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: the license (MIT License) isn't a recognized OSI-approved license. See how to fix → Fail
- Actively maintained (last published 360 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability80
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 208 tokens (~69/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 Management97
- Stability observed for 29 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 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
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
How do I install the io.github.sellisd/mcp-units server?
io.github.sellisd/mcp-units runs locally as a PyPI package, launched with uvx mcp-units. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
pypi · mcp-units
claude mcp add sellisd-mcp-units -- uvx mcp-units
{
"mcpServers": {
"sellisd-mcp-units": {
"command": "uvx",
"args": [
"mcp-units"
]
}
}
} {
"servers": {
"sellisd-mcp-units": {
"command": "uvx",
"args": [
"mcp-units"
]
}
}
} codex mcp add sellisd-mcp-units -- uvx mcp-units
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"sellisd-mcp-units": {
"type": "local",
"command": [
"uvx",
"mcp-units"
],
"enabled": true
}
}
} openclaw mcp add sellisd-mcp-units --command uvx --arg mcp-units
mcp_servers:
sellisd-mcp-units:
command: "uvx"
args: ["mcp-units"] {
"McpServers": {
"sellisd-mcp-units": {
"Transport": "stdio",
"Command": "uvx",
"Arguments": [
"mcp-units"
]
}
}
} assistant mcp add sellisd-mcp-units -t stdio -c uvx -a mcp-units
{
"mcpServers": {
"sellisd-mcp-units": {
"command": "uvx",
"args": [
"mcp-units"
]
}
}
} 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.
- 22 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.
- 21 Sept 26 −15
- Malware scan: pass → unverified ▼ security
- 20 Sept 26 +15
- Malware scan: unverified → pass ▲ security
- 19 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.
- 17 Sept 26 −17
- Malware scan: pass → unverified ▼ security
- Stability: pass → 0.80 functional
- 16 Sept 26 0
- Stability: 0.97 → pass security
- 15 Sept 26 +16
- Malware scan: unverified → pass ▲ security
- 14 Sept 26 −15
- Malware scan: pass → unverified ▼ security
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 22 Sept 2026 · Analysed pypi/mcp-units@0.3.3
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 →
Vulnerabilities 6 findings
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-9h52-p55h-vw2f | CVE-2025-66416 | high | yes | |
| GHSA-jpw9-pfvf-9f58 | CVE-2026-52869 | high | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L | yes |
| GHSA-vj7q-gjh5-988w | CVE-2026-59950 | high | yes | |
| PYSEC-2026-1617 | CVE-2025-66416 | none | yes | |
| PYSEC-2026-3482 | CVE-2026-52869 | high | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L | yes |
| PYSEC-2026-3483 | CVE-2026-59950 | none | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 38 packages
| Packages resolved | 38 |
|---|---|
| Stale | 1 |
| No linked repository | 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 →
convert_temperature ~62
Convert between Celsius (C) and Fahrenheit (F) temperatures
| Name | Type | Req | Description |
|---|---|---|---|
| from_unit | string | yes | Source temperature unit (C or F) |
| to_unit | string | yes | Target temperature unit (C or F) |
| value | number | yes | Temperature value to convert |
No output schema declared.
No examples provided.
convert_volume ~76
Convert between volume units (ml, l, cup, tbsp, tsp)
| Name | Type | Req | Description |
|---|---|---|---|
| from_unit | string | yes | Source volume unit (ml, l, cup, tbsp, tsp) |
| to_unit | string | yes | Target volume unit (ml, l, cup, tbsp, tsp) |
| value | number | yes | Volume value to convert |
No output schema declared.
No examples provided.
convert_weight ~70
Convert between weight units (g, kg, oz, lb)
| Name | Type | Req | Description |
|---|---|---|---|
| from_unit | string | yes | Source weight unit (g, kg, oz, lb) |
| to_unit | string | yes | Target weight unit (g, kg, oz, lb) |
| value | number | yes | Weight value to convert |
No output schema declared.
No examples provided.
What is the io.github.sellisd/mcp-units server?
io.github.sellisd/mcp-units is listed in the public MCP registry as io.github.sellisd/mcp-units. An MCP server that provides some common units conversions for cooking. This page covers its PyPI package (mcp-units).
Is the io.github.sellisd/mcp-units server safe to use?
io.github.sellisd/mcp-units scores 60 out of 100 on VerifyMCP. We recorded 6 known advisories against it as of 22 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 io.github.sellisd/mcp-units server expose?
io.github.sellisd/mcp-units exposes 3 tools: convert_temperature, convert_volume, convert_weight. Their descriptions and schemas cost roughly 208 tokens of context every time the server is loaded.
Is the io.github.sellisd/mcp-units server still maintained?
io.github.sellisd/mcp-units is still listed as active in the MCP registry. We last reached this channel on 22 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.