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ccpcrate.ca

This MCP server provides tools for computing Canadian controlled private corporation (CCPC) tax rates, resolving tax line amounts, explaining tax calculations, and retrieving statutory tax rate information.

x402 supported1 endpoint4 known toolsFirst detected September 8, 2026Last detected September 8, 2026

ENDPOINT 1

https://ccpcrate.ca/mcp

No auth detected

MCP server metadata

Name: ccpcrate
Version: 0.0.1

Capabilities

tools.listChanged

Server instructions

ccpcrate resolves the Canadian CCPC corporate rate stack (engine 0.0.1, rules 0.2.7): federal Part I with the SBD and its passive-income / taxable-capital grinds, GRR, refundable Part I, Part IV, ERDTOH / NERDTOH continuity and dividend refund, GRIP, CDA and loss continuity for holdcos, and the provincial layer (Québec CO-771 with the hours test, Ontario / New Brunswick without the passive grind, the other provinces through line 428). Every printed line is rounded half-up to the dollar; the engine never assumes a required input away — read the warnings. Amounts are in dollars. Give groupAaiiPriorYear (line 417) whenever a business limit is claimed, and Québec hours 07a / 07b for the CO-771 layer. Each result has a human-readable summary (text) and the full machine-readable object (structuredContent). ccpcrate_explain and ccpcrate_rules are free; ccpcrate_resolve: Paid: 0.25 USD per call in USDC over x402 (Base); without a payment the call returns the x402 payment requirements.

Known tools 4

ccpcrate_resolve

Compute the federal Part I / Part IV / refundable / RDTOH / dividend-refund lines and the provincial layer for one CCPC and one taxation year.

Potential side effects

ccpcrate_group

Compute a whole associated group (s.

Inferred read-only

ccpcrate_explain

Free diagnostic pass over the same input as ccpcrate_resolve: which layers run, the defaults the engine would apply, every warning with its meaning (grind binding, provincial asymmetries, missing inputs), the rule rows in force for the year with sources and verification status, the open verifications, and what the paid computation would return.

Inferred read-only

ccpcrate_rules

The statutory rates and parameters the engine uses (14 jurisdictions, effective dates, application modes, sources, verification status), filterable by jurisdiction, key and date.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.ccpcrate]
url = "https://ccpcrate.ca/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "ccpcrate": {
      "type": "http",
      "url": "https://ccpcrate.ca/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: ccpcrate
Remote MCP URL: https://ccpcrate.ca/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "ccpcrate": {
      "url": "https://ccpcrate.ca/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "ccpcrate": {
      "type": "http",
      "url": "https://ccpcrate.ca/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "ccpcrate",
  "transport": "streamable-http",
  "url": "https://ccpcrate.ca/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.