# Free IFTA Calculator (remote · ifta-calculator.pages.dev)

Read-only IFTA fuel-tax answers and quarterly estimates with official rates. Not tax advice.

- Trust score: 73/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `ifta-calculator.pages.dev`: 73/100 (this document), [markdown](https://verifymcp.io/servers/dev-pages-ifta-calculator-ifta/ifta-calculator.md), [page](https://verifymcp.io/servers/dev-pages-ifta-calculator-ifta/ifta-calculator)

## Channel facts

- Endpoint: `https://ifta-calculator.pages.dev/mcp`
- 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**: 74/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation.
  - HTTPS is enforced; there's no plaintext access path.
  - 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**: 66/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 282 tokens (~282/item across 1 items; 1 tools + 0 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 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 2 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Free IFTA Calculator MCP server?

Free IFTA Calculator is a hosted endpoint at https://ifta-calculator.pages.dev/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.

### Claude

```bash
claude mcp add --transport http dev-pages-ifta-calculator-ifta 'https://ifta-calculator.pages.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "dev-pages-ifta-calculator-ifta": {
      "url": "https://ifta-calculator.pages.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "dev-pages-ifta-calculator-ifta": {
      "type": "http",
      "url": "https://ifta-calculator.pages.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.dev-pages-ifta-calculator-ifta]
url = "https://ifta-calculator.pages.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-pages-ifta-calculator-ifta": {
      "type": "remote",
      "url": "https://ifta-calculator.pages.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add dev-pages-ifta-calculator-ifta --url 'https://ifta-calculator.pages.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  dev-pages-ifta-calculator-ifta:
    url: "https://ifta-calculator.pages.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "dev-pages-ifta-calculator-ifta": {
      "Transport": "http",
      "Url": "https://ifta-calculator.pages.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add dev-pages-ifta-calculator-ifta -t streamable-http -u 'https://ifta-calculator.pages.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "dev-pages-ifta-calculator-ifta": {
      "type": "http",
      "url": "https://ifta-calculator.pages.dev/mcp"
    }
  }
}
```

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 73, +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 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 70, +1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “answer_ifta_question” rewrote its description, which is the text the model reads
- [functional improvement] Stability: unverified → 0.03

### 2026-10-29 (score 69)

First indexed and scored.

## MCP tools (1)

### `answer_ifta_question` (~213 tokens)

Answer an IFTA fuel-tax question

Answers US/Canadian IFTA fuel-tax questions for trucking owner-operators: the Q3 2026 (Jul-Sep) due date, how the quarterly reconciliation works, and official IFTA 3Q2026 tax and surcharge rates per jurisdiction and fuel. If miles and gallons per jurisdiction are given, it estimates the quarter's tax owed or credit with the same maths as the IFTA calculator at ifta-calculator.pages.dev. Only Q3 2026 rates are loaded. Estimates only, not tax advice and not a filed return. Read-only: it stores nothing and files nothing.

Input parameters:

- `fuel` (string): Fuel type for rates and the estimate. Defaults to Diesel.
- `jurisdictions` (array): Optional, for an estimate: total miles driven and fuel gallons bought in each jurisdiction this quarter.
- `question` (string, required): The user's IFTA question in plain language, e.g. 'When is Q3 2026 IFTA due?' or 'What is Kentucky's diesel rate?'

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/dev-pages-ifta-calculator-ifta/ifta-calculator#diagnostics

## Score history

- 2026-11-05: 73
- 2026-11-04: 72
- 2026-11-03: 72
- 2026-11-02: 71
- 2026-11-01: 71
- 2026-10-31: 70
- 2026-10-30: 70
- 2026-10-29: 69

## Common questions

### What is the Free IFTA Calculator MCP server?

Free IFTA Calculator is an MCP server listed in the public MCP registry as dev.pages.ifta-calculator/ifta. Read-only IFTA fuel-tax answers and quarterly estimates with official rates. Not tax advice. This page covers its hosted endpoint (https://ifta-calculator.pages.dev/mcp).

### Is the Free IFTA Calculator MCP server safe to use?

Free IFTA Calculator 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 Free IFTA Calculator MCP server expose?

Free IFTA Calculator exposes 1 tool: answer_ifta_question. Their descriptions and schemas cost roughly 213 tokens of context every time the server is loaded.

### Does the Free IFTA Calculator MCP server require authentication?

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

### Is the Free IFTA Calculator MCP server still maintained?

Free IFTA Calculator 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.

### What did VerifyMCP test on the Free IFTA Calculator MCP server?

VerifyMCP ran 13 checks on Free IFTA Calculator, covering TLS certificate, Authorization, HTTPS, HSTS header and 9 more. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- Remote endpoint: https://ifta-calculator.pages.dev/mcp
- Website: https://ifta-calculator.pages.dev/privacy#ai-assistants
- Changelog RSS feed: https://verifymcp.io/servers/dev-pages-ifta-calculator-ifta/ifta-calculator.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-pages-ifta-calculator-ifta/ifta-calculator/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/dev-pages-ifta-calculator-ifta/ifta-calculator.json
- HTML version of this page: https://verifymcp.io/servers/dev-pages-ifta-calculator-ifta/ifta-calculator