INDIVIDUAL MCP TOOL

poll_authentication

Poll for the result of a pending authenticate_account device-code request.

vatbuild.comnone authenticationAvailability not checked

LIVE ENDPOINT

https://vatbuild.com/mcp

No auth detected

Connect to this endpoint to inspect the live schema for poll_authentication and invoke it with your own arguments.

{}

Inferred read-only · medium confidence · heuristic, not a guarantee.

No write-capable action terms were found; this is not proof that invocation has no side effects.

CONNECT WITH APPROVAL

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

Codex

~/.codex/config.toml

[mcp_servers.vatbuild-mcp]
url = "https://vatbuild.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "vatbuild-mcp": {
      "type": "http",
      "url": "https://vatbuild.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: vatbuild-mcp
Remote MCP URL: https://vatbuild.com/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": {
    "vatbuild-mcp": {
      "url": "https://vatbuild.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "vatbuild-mcp": {
      "type": "http",
      "url": "https://vatbuild.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "vatbuild-mcp",
  "transport": "streamable-http",
  "url": "https://vatbuild.com/mcp"
}

MCP Inspector

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

check_line_item — Classify any UK construction invoice line item against HMRC Notice 708 VAT rules.
list_projects — Return all VATBuild projects for the authenticated user's organisation.
list_line_items — Return a paginated summary of invoice line items for a VATBuild project.
route_line_item — Classify and persist the VAT routing decision for a specific line item in a VATBuild project.
answer_vat_complex_question — Submit the answer to a complex-VAT confirmation question for a specific line item.
reclassify_companion_items — Re-route all line items on an invoice document using the current invoice-level context.
set_up_project — Create a new VATBuild project for the authenticated user.
assess_project_eligibility — Run a lightweight HMRC VAT eligibility check on a VATBuild project before uploading invoices.