com.logiccommons/calculators
REMOTE · MCP.LOGICCOMMONS.COM · SCANNED SEP 27
Find and run trustworthy calculators with clear methods, provenance, and sources.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 3 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability76
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 607 tokens (~202/item across 3 items; 3 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 Management43
- Stability observed for 13 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
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
How do I install the com.logiccommons/calculators MCP server?
com.logiccommons/calculators is a hosted endpoint at https://mcp.logiccommons.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mcp.logiccommons.com
claude mcp add --transport http com-logiccommons-calculators 'https://mcp.logiccommons.com/mcp'
{
"mcpServers": {
"com-logiccommons-calculators": {
"url": "https://mcp.logiccommons.com/mcp"
}
}
} {
"servers": {
"com-logiccommons-calculators": {
"type": "http",
"url": "https://mcp.logiccommons.com/mcp"
}
}
} [mcp_servers.com-logiccommons-calculators] url = "https://mcp.logiccommons.com/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-logiccommons-calculators": {
"type": "remote",
"url": "https://mcp.logiccommons.com/mcp",
"enabled": true
}
}
} openclaw mcp add com-logiccommons-calculators --url 'https://mcp.logiccommons.com/mcp' --transport streamable-http
mcp_servers:
com-logiccommons-calculators:
url: "https://mcp.logiccommons.com/mcp" {
"McpServers": {
"com-logiccommons-calculators": {
"Transport": "http",
"Url": "https://mcp.logiccommons.com/mcp"
}
}
} assistant mcp add com-logiccommons-calculators -t streamable-http -u 'https://mcp.logiccommons.com/mcp'
{
"mcpServers": {
"com-logiccommons-calculators": {
"type": "http",
"url": "https://mcp.logiccommons.com/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 27 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.
- 22 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 20 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 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 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 15 Sept 26 0
- Stability: unverified → 0.03 ▲ functional
- Server version: 1.0.0 → 1.0.0-beta.2 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 27 Sept 2026 · Probed https://mcp.logiccommons.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=mcp.logiccommons.com | CN=GeoTrust TLS RSA CA G1,OU=www.digicert.com,O=DigiCert Inc,C=US | 4 Sept 2026 | 4 Mar 2027 | RSA 2048 | SHA256-RSA | eedbb8c792f8e01c961089eefdefba7 |
| SANs: mcp.logiccommons.com | ||||||
| CN=GeoTrust TLS RSA CA G1,OU=www.digicert.com,O=DigiCert Inc,C=US (CA) | CN=DigiCert Global Root G2,OU=www.digicert.com,O=DigiCert Inc,C=US | 2 Nov 2017 | 2 Nov 2027 | RSA 2048 | SHA256-RSA | d07782a133fc6f9a57296e131ffd179 |
| CN=DigiCert Global Root G2,OU=www.digicert.com,O=DigiCert Inc,C=US (CA) | CN=DigiCert Global Root G2,OU=www.digicert.com,O=DigiCert Inc,C=US | 1 Aug 2013 | 15 Jan 2038 | RSA 2048 | SHA256-RSA | 33af1e6a711a9a0bb2864b11d09fae5 |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.logiccommons.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| logiccommons.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| content-security-policy | default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self'; connect-src 'self'; frame-ancestors 'self'; base-uri 'self'; form-action 'self'; object-src 'none'; report-uri /csp-report |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.logiccommons.com/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.logiccommons.com/mcp | HTTPS enforced | 301 | https://mcp.logiccommons.com/mcp |
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 →
get_calculator_schema ~185
Get the input and output schema for a calculator, generated from its reviewed contract: parameter types, units, allowed dropdown values and definitional bounds, plus outputs keyed by named range (including the status output). Table inputs carry a 'grid' block giving the exact number of rows to send, the column layout, which columns are editable, and how to shape a row; a table whose 'grid' block says writable=false cannot be supplied at all. Schema 0.18 exposes required and omitted declarations plus version-bound visibility tables; older versions require every input while awaiting metadata migration. Optionally resolves one immutable platform version. Returns trust metadata for the resolved version.
| Name | Type | Req | Description |
|---|---|---|---|
| platform_version | integer|null | – | Optional positive platform version number. Omit for the current published version. |
| slug | string | yes | The calculator slug, e.g. 'steel-column-capacity-calculator'. |
No output schema declared.
No examples provided.
run_calculator ~333
Run a calculator with the given inputs. Inputs are validated against the resolved version's reviewed contract and computed by SpreadsheetWeb through the same proxy as the web channel. An optional platform_version pins both validation and computation to that immutable version. Returns outputs keyed by named range (including the status output) and trust metadata with a citation URL, resolvedInputs, and warnings for omitted inputs. Missing or blank visible required inputs are refused before computation; inspect get_calculator_schema and the complete error detail. For schema 0.18, optional omissions are sent explicitly as declared blank or standing default and disclosed with their values and sources. Older pinned contracts require all inputs during migration. Visibility follows version-bound dropdown truth tables; a missing controller makes its dependents indeterminate until it is supplied. A hidden controller is ignored only when all of its option branches have the same remaining visibility subtree; otherwise its dependents stay hidden. Hidden omissions use explicit blank/default values; supplied hidden inputs are retained with a not-applicable warning. Always read Model_Status and status outputs; CHECK and STOP are load-bearing verdicts about the result's validity. Results are informational and not professional advice; the applicable notice is returned in the trust block.
| Name | Type | Req | Description |
|---|---|---|---|
| inputs | object | yes | Input name/value pairs matching the calculator schema (from get_calculator_schema). A table input takes a list of rows matching its 'grid' block exactly; a table of the wrong extent or shape is refus… |
| platform_version | integer|null | – | Optional positive platform version number. Omit for the current published version. |
| slug | string | yes | The calculator slug. |
No output schema declared.
No examples provided.
search_calculators ~89
Search the LogicCommons calculator catalog by keyword and optional category. Returns matching published calculators with slug, name, summary, category, a citation URL, and trust metadata.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string|null | – | Optional category slug to filter by, e.g. 'structural-civil'. |
| query | string | yes | Free-text query matched against calculator name, summary and category. Empty returns the catalog. |
No output schema declared.
No examples provided.
What is the com.logiccommons/calculators MCP server?
com.logiccommons/calculators is an MCP server listed in the public MCP registry as com.logiccommons/calculators. Find and run trustworthy calculators with clear methods, provenance, and sources. This page covers its hosted endpoint (https://mcp.logiccommons.com/mcp).
Is the com.logiccommons/calculators MCP server safe to use?
com.logiccommons/calculators scores 73 out of 100 on VerifyMCP. 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 com.logiccommons/calculators MCP server expose?
com.logiccommons/calculators exposes 3 tools: get_calculator_schema, run_calculator, search_calculators. Their descriptions and schemas cost roughly 607 tokens of context every time the server is loaded.
Does the com.logiccommons/calculators MCP server require authentication?
No. We connected to com.logiccommons/calculators without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the com.logiccommons/calculators MCP server still maintained?
com.logiccommons/calculators is still listed as active in the MCP registry. We last reached this channel on 27 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.