Tallyfern Rates (Canada) MCP Server

by tallyfern Your server? Claim it

answering

Tallyfern Rates (Canada) is answering right now. Last checked 4 min ago. It exposes 5 tools.

Read-only Canadian GST/HST rates, small-supplier check and CRA allowance rates, with CRA sources.

Uptime history 9 days of history · worst day 98%

9 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

183 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 7 October 2026. No other catalogue keeps this.

7 Oct a tool changed version

Tallyfern Rates (Canada) missed 2 checks this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add rates --transport http https://mcp.tallyfern.com/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "rates": {
      "url": "https://mcp.tallyfern.com/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.rates]
url = "https://mcp.tallyfern.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "rates": {
      "url": "https://mcp.tallyfern.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "rates": {
      "url": "https://mcp.tallyfern.com/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

cra

cra_automobile_allowance_rate

CRA reasonable per-kilometre allowance rates for employer-paid vehicle allowances (2026 default; 2025 also available): first 5,000 km and after, provinces vs territories. Optionally calculates the allowance for a number of business kilometres.

cra_meal_travel_allowance

CRA simplified-method rates (latest published tax year): flat meal rate per meal and maximum per day, and vehicle cents/km by province or territory where travel begins. These apply to moving expenses, northern residents deductions and medical travel, not to employer per-diems. Optionally calculates amounts.

gst

gst_hst_rate_by_province

Current GST/HST rate for a Canadian province or territory (or all 13), with the PST/QST rate CRA lists for reference. From CRA's 'Charge and collect the GST/HST' table.

gst_hst_small_supplier_check

Apply the CRA's $30,000 small-supplier tests (single calendar quarter and four consecutive calendar quarters) to taxable revenue by calendar quarter. Says whether the person must register for the GST/HST, when they stop being a small supplier, the effective date of registration, and headroom for next quarter. Most businesses only (not charities/public service bodies).

ontario

ontario_hst_basics

Plain-language basics for Ontario businesses: the 13% HST rate, the $30,000 small-supplier threshold, the 29-day registration deadline and place-of-supply rule, with CRA sources.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.tallyfern.com/mcp	streamable-http	answering	72 ms	4 min ago

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Tallyfern Rates (Canada) — questions

Answers built from our own checks of this server.

What can Tallyfern Rates (Canada) do?

It exposes 5 tools, read directly from the server on our last check. Among them: cra_automobile_allowance_rate, cra_meal_travel_allowance, gst_hst_rate_by_province, gst_hst_small_supplier_check, ontario_hst_basics. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

What is Tallyfern Rates (Canada) mostly used for?

Its tools cluster around cra and gst. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is Tallyfern Rates (Canada) working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 183 ms. The bar chart above shows every period we have measured.

How do I connect Tallyfern Rates (Canada)?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Tallyfern Rates (Canada) need an API key?

No. Tallyfern Rates (Canada) completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Tallyfern Rates (Canada)?

It answers our handshake in 183 ms on average, which is faster than 66% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.