MonsiTools Calculators
REMOTE · MONSITOOLS.COM
Find and run exact business, finance and SaaS calculators instead of guessing the math.
Available components
Last scanned (5 hours ago)
Scores higher than 93% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Finance and Payments
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 Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- 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 Usability73
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 319 tokens (~106/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 Management100
- No destabilizing schema changes in the last 30 days.Pass
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 4 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
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.
- 1 Nov 26 +1
- Stability: 0.97 → pass security
- 30 Oct 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.
- 28 Oct 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.
- 26 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.
- 24 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.
- 22 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.
- 19 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 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 5 Nov 2026 · Probed https://monsitools.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=monsitools.com | CN=WE1,O=Google Trust Services,C=US | 24 Oct 2026 | 22 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | f99ed4ce23444788138baf16cf05a29c |
| SANs: monsitools.com, *.monsitools.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of monsitools.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| monsitools.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' 'sha256-+H1eR5LW7ep2fKFxSvx42U2Xw95M6LtBF7pRtPZ4sAs=' 'sha256-1XvDsKNptHaYBZMxP06vbd8oOTRdcbzSRDHXymJgpD8=' 'sha256-5koYHUDPuHfIbWH92Iuyisf2pT9E2RwoV2jO8eKXtHc=' 'sha256-6sL5rpKLn7rJVOsqPsyuiyhQLXycwEgw8p4dExGHN/Q=' 'sha256-6yD4jY/wx71EV5Sp+wHZP/tal3OdnKXyxtt+m9xtnoo=' 'sha256-7oKQM3mlRwwEJpUvLqz7E0ikysi/ePTQ8rm4YUwlCKg=' 'sha256-8AbJzumbv7gSDWHdlCl7vJAPMcmEr3dDvmK+TrGVxcI=' 'sha256-8EWLUGtGCAYtiTnMBqpkSiFpWc5qv5HSvETuSUhiyss=' 'sha256-8GHfRosZMlCHvnEqBL9wG3YC2l7Gy4E+cnACKHfmn3k=' 'sha256-CpqYvBJo1oXeqY2IpHm9+OWJFPBZhv1LYtv+3z+6e8Y=' 'sha256-FAQBmnR0+lmo3MgaI/RxpZquEu+BhT9gdEvXjHRdTiU=' 'sha256-Fd1r5J2Vlx6vlzir9gtbqE/xR+3d2OmSXiyfe8XdbAM=' 'sha256-IAGJojcVMwwe07fWBhKhWm3hdOIrQdgzWdkpMv5faHc=' 'sha256-InZGAK2pc0NcZf9Aezxykeh65eJGknhF6naV3mO0NOE=' 'sha256-MOJIC4bwTktB1qEZyZUyniDs61zmRRHkPmZApQxlAqU=' 'sha256-Mh9xplhkKoCfwUt2MLvFHStUoqsy6mWGMfBI2Q/s6BQ=' 'sha256-UjnDhcNwD0bHYvAztNeaqmrljG2gDte7lXObLnmvZxs=' 'sha256-W1kIAolU4bK5SZY/QiC3pm5FgpIVhNYRiz125gOB2z0=' 'sha256-YfrEFZ |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | geolocation=(), microphone=(), camera=(), clipboard-read=(self) |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://monsitools.com/mcp | Verified | 200 | |
| http (plaintext) | http://monsitools.com/mcp | HTTPS enforced | 301 | https://monsitools.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 →
calculate Run a calculator ~95
Runs a MonsiTools calculator on the given inputs and returns the result. Works without a key for 10 calculations a day per IP address. A MonsiTools Premium API key, sent as 'Authorization: Bearer mt_live_...' when connecting, removes the daily limit.
| Name | Type | Req | Description |
|---|---|---|---|
| inputs | object | yes | Input name to number, for every input the calculator lists. |
| slug | string | yes | Calculator slug from search_calculators. |
No output schema declared.
No examples provided.
describe_calculator Describe a calculator ~49
Returns a calculator's name, category, formula, input names and page URL, given its slug.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | Calculator slug, e.g. 'saas-runway-calculator'. |
No output schema declared.
No examples provided.
search_calculators Search MonsiTools calculators ~113
Find MonsiTools calculators by keyword (for example 'runway', 'break even', 'roas', 'loan payment'). Returns each match's slug, name, category and input names. Use describe_calculator for details, then calculate to run one.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Optional exact category name, e.g. 'SaaS Metrics'. |
| limit | integer | – | Maximum results (default 10). |
| query | string | yes | Words to match against calculator names, categories and input names. |
No output schema declared.
No examples provided.
How do I install the MonsiTools Calculators MCP server?
MonsiTools Calculators is a hosted endpoint at https://monsitools.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 · monsitools.com
claude mcp add --transport http com-monsitools-calculators 'https://monsitools.com/mcp'
What is the MonsiTools Calculators MCP server?
MonsiTools Calculators is an MCP server listed in the public MCP registry as com.monsitools/calculators. Find and run exact business, finance and SaaS calculators instead of guessing the math. This page covers its hosted endpoint (https://monsitools.com/mcp).
Is the MonsiTools Calculators MCP server safe to use?
MonsiTools Calculators scores 86 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 MonsiTools Calculators MCP server expose?
MonsiTools Calculators exposes 3 tools: search_calculators, describe_calculator, calculate. Their descriptions and schemas cost roughly 257 tokens of context every time the server is loaded.
Does the MonsiTools Calculators MCP server require authentication?
No. We connected to MonsiTools Calculators without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the MonsiTools Calculators MCP server still maintained?
MonsiTools Calculators is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.