# Limpide tools (remote · tools.limpide.ai)

Verified maths exercises for tutors and their students, each answer key right by construction.

- Trust score: 69/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `tools.limpide.ai`: 69/100 (this document), [markdown](https://verifymcp.io/servers/ai-limpide-tools/tools.md), [page](https://verifymcp.io/servers/ai-limpide-tools/tools)

## Channel facts

- Endpoint: `https://tools.limpide.ai/mcp?via=registry`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 69/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1927 tokens (~481/item across 4 items; 3 tools + 1 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).
  - Supports UI / widget rendering.

## Install

### How do I install the Limpide tools MCP server?

Limpide tools is a hosted endpoint at https://tools.limpide.ai/mcp?via=registry, 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.

### Claude

```bash
claude mcp add --transport http ai-limpide-tools 'https://tools.limpide.ai/mcp?via=registry'
```

### Cursor

```json
{
  "mcpServers": {
    "ai-limpide-tools": {
      "url": "https://tools.limpide.ai/mcp?via=registry"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ai-limpide-tools": {
      "type": "http",
      "url": "https://tools.limpide.ai/mcp?via=registry"
    }
  }
}
```

### Codex

```toml
[mcp_servers.ai-limpide-tools]
url = "https://tools.limpide.ai/mcp?via=registry"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ai-limpide-tools": {
      "type": "remote",
      "url": "https://tools.limpide.ai/mcp?via=registry",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ai-limpide-tools --url 'https://tools.limpide.ai/mcp?via=registry' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ai-limpide-tools:
    url: "https://tools.limpide.ai/mcp?via=registry"
```

### Netclaw

```json
{
  "McpServers": {
    "ai-limpide-tools": {
      "Transport": "http",
      "Url": "https://tools.limpide.ai/mcp?via=registry"
    }
  }
}
```

### Vellum

```bash
assistant mcp add ai-limpide-tools -t streamable-http -u 'https://tools.limpide.ai/mcp?via=registry'
```

### Other

```json
{
  "mcpServers": {
    "ai-limpide-tools": {
      "type": "http",
      "url": "https://tools.limpide.ai/mcp?via=registry"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-05 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 68, +1)

- [security] Tool “generate_exercises” rewrote its description, which is the text the model reads
- [cosmetic] “generate_exercises” reworded the description of “topic”

### 2026-11-02 (score 67, 0)

- [security] Tool “explain_principle” rewrote its description, which is the text the model reads
- [security] Tool “generate_exercises” rewrote its description, which is the text the model reads
- [cosmetic] “generate_exercises” reworded the description of “topic”

### 2026-10-31 (score 67, +1)

- [security] Tool “generate_exercises” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 246 → 444
- [functional] New tool “explain_principle”
- [cosmetic] “generate_exercises” reworded the description of “topic”
- [cosmetic] “generate_exercises” reworded the description of “trap”
- [cosmetic] “request_exercise” reworded the description of “topic”

### 2026-10-30 (score 66, +1)

- [security] Tool “generate_exercises” rewrote its description, which is the text the model reads
- [functional improvement] Schema quality: 393 → 246
- [functional improvement] Stability: unverified → 0.03
- [functional] The server now declares the “resources” capability
- [functional] First check of Capabilities: pass
- [functional] First check of Schema quality: 100
- [functional] Schema quality: excellent → good
- [functional] New resource “Exercise”
- [functional] New tool “request_exercise”
- [cosmetic] “generate_exercises” added an optional parameter “view”

### 2026-10-29 (score 65)

First indexed and scored.

## MCP tools (3)

### `generate_exercises` (~1185 tokens)

Verified exercises

Verified maths exercises for tutors, human or AI, in French (Swiss course conventions) or English. Seven topics, six for the first year of maturité: product equations (équations produit) of degree 2 and 3, linear equations (équations du premier degré), quadratic equations (équations du second degré), solved by factoring or the discriminant, 2x2 linear systems, fractional equations (équations fractionnaires) with their domain, and factoring (factorisation), an expression to factor completely; and for beginners, before that year, Pythagoras' theorem, a right triangle with a missing side, or the distance between two points. Each exercise is built from its solutions, so its answer key is always right. Each one sets a named trap, the error it tests: for product equations hidden common factor, difference of squares, sum of squares, x as a common factor, grouping, perfect square; for linear equations moving a term, minus before brackets, common denominator, x cancels (no solution, or every real number); for quadratic equations no constant term, sum and product, negative coefficient b, sign of the discriminant (one solution, or none); for systems substitution, subtracting the equations, multiplying an equation, x and y cancel (parallel lines, or one line); for fractional equations checking the domain (a candidate root that is an excluded value), a term without a denominator, a minus before a fraction, the common denominator; for factoring common factor first, difference of squares, square of a sum, square of a difference, sum of squares (x^2 + b^2, with b a nonzero number, does not factor over the reals), grouping; for Pythagoras missing leg, missing hypotenuse, finding the hypotenuse, distance between two points (a sign lost when subtracting a negative coordinate). Returns the statement for the student and, for the tutor only, the solution set ([] when there is none, one element, U+211D, the symbol of the reals, when every real number is a solution; for a system the pair…

Input parameters:

- `count` (integer): How many exercises, from 1 to 20. With a seed, they use seed, seed + 1, and so on.
- `date` (string): The exercise of that day (YYYY-MM-DD), the same for every reader: today's date gives the exercise of the day. In place of a seed.
- `lang` (string): Language of the statement and the solution: fr (Swiss course conventions) or en.
- `seed` (integer): The same seed (with the same trap) always gives the same exercise. Leave it out for a new one.
- `topic` (string): product-equations: équations produit of degree 2 and 3, solved by factoring. linear-equations: équations du premier degré, with brackets, fractions, and the cases with no solution or every real numbe…
- `trap` (string): The error the exercise tests, one of its topic's. Leave it out and the seed chooses one; the answer names it.
- `view` (string): What a host that draws views shows under the call. tutor: the exercise with its steps, solution and figure behind a switch, for a tutor reading this chat. student: the statement only, when the studen…

### `explain_principle` (~498 tokens)

Understand a principle

Why a maths principle holds, shown on its figure, for a student who asks why or a tutor preparing an explanation. special-products: the identités remarquables of the first year of maturité, (a + b)^2 = a^2 + 2ab + b^2, (a - b)^2 = a^2 - 2ab + b^2 and (a + b)(a - b) = a^2 - b^2, each read on a figure of squares and rectangles, then why a sum of squares x^2 + b^2, with b a nonzero number, does not factor over the reals, read on the parabola y = x^2 + b^2 above the axis. pythagoras: in a right triangle with hypotenuse c, a^2 + b^2 = c^2, read on four copies of the triangle in a square of side a + b. For each part: a question for the student, the statement, the trap students fall into, why it is true, an example with numbers, for the identities how to read them backwards to factor, with the rule that recognises each, and the generate_exercises topic and trap that practise it. To teach with a part, ask its `question` first, about what its figure shows, and wait for the student's answer before giving the explanation, which holds the answer. In French (Swiss course conventions) or English. A host that draws views shows each figure and its explanation under the call. pageUrl is the page of the principle, with the figures and their explanation, in the language asked for: give it to the student only when the figures are not shown under the call. Deterministic: use this instead of explaining from memory.

Input parameters:

- `lang` (string): Language of the explanation: fr (Swiss course conventions) or en.
- `principle` (string, required): special-products: the identités remarquables (a + b)^2, (a - b)^2 and (a + b)(a - b) = a^2 - b^2, and why a sum of squares x^2 + b^2, with b a nonzero number, does not factor over the reals. pythagor…

### `request_exercise` (~221 tokens)

Ask for a missing topic

Ask Limpide for maths exercises this server does not have yet, or give one line of feedback on an exercise. Use it when generate_exercises has no topic for what the tutor needs. Limpide reads the requests each morning to choose the next topics, and promises nothing; the answer lists the topics that exist today. Never include a student's name, work or answers: name the topic, the level and, if useful, one line about what is missing.

Input parameters:

- `lang` (string): Language of the exercises wanted, and of this answer: fr or en.
- `level` (string): The school level, if known ("first year of maturité"), at most 40 characters.
- `note` (string): One line of feedback, at most 200 characters: what is missing, or what is wrong in an exercise (give its id). Never a student's name, work or answers.
- `topic` (string, required): The topic wanted, in a few words ("quadratic equations", "trigonométrie"), at most 80 characters.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/ai-limpide-tools/tools#diagnostics

## Score history

- 2026-11-05: 69
- 2026-11-04: 68
- 2026-11-03: 68
- 2026-11-02: 67
- 2026-11-01: 67
- 2026-10-31: 67
- 2026-10-30: 66
- 2026-10-29: 65

## Common questions

### What is the Limpide tools MCP server?

Limpide tools is an MCP server listed in the public MCP registry as ai.limpide/tools. Verified maths exercises for tutors and their students, each answer key right by construction. This page covers its hosted endpoint (https://tools.limpide.ai/mcp?via=registry).

### Is the Limpide tools MCP server safe to use?

Limpide tools scores 69 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 Limpide tools MCP server expose?

Limpide tools exposes 3 tools: generate_exercises, explain_principle, request_exercise. Their descriptions and schemas cost roughly 1,904 tokens of context every time the server is loaded.

### Does the Limpide tools MCP server require authentication?

No. We connected to Limpide tools without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Limpide tools MCP server still maintained?

Limpide tools 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.

## Links

- Remote endpoint: https://tools.limpide.ai/mcp?via=registry
- Website: https://tools.limpide.ai/en
- Changelog RSS feed: https://verifymcp.io/servers/ai-limpide-tools/tools.xml
- Changelog JSON feed: https://verifymcp.io/servers/ai-limpide-tools/tools.json
- HTML version of this page: https://verifymcp.io/servers/ai-limpide-tools/tools