# get_invoice

Get a single outgoing invoice by ID.

Agent View of the PolicyLayer registry record for `get_invoice`. HTML page: https://policylayer.com/tools/adriantr-tripletex-mcp/get-invoice

## Facts

- Tool: `get_invoice`
- Server: Tripletex MCP Server (`adriantr/tripletex-mcp`) — https://policylayer.com/tools/adriantr-tripletex-mcp.md
- Homepage: https://github.com/adriantr/tripletex-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_invoice",
    "arguments": {}
  }
}
```

## Why get_invoice is rated Low

This tool retrieves invoice information by ID, which is a read-only query operation. It accesses existing data without creating, modifying, deleting, or executing any operations. The blast radius of misuse is low—an agent retrieving invoice data cannot cause financial damage, data loss, or trigger unwanted transactions.

From the tool's own definition: "Tool name 'get_invoice' and description 'Get a single outgoing invoice by ID' indicate retrieval of existing invoice data without modification or side effects."

## Use case

AI agents call get_invoice to retrieve information from Tripletex MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Tripletex MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_invoice": {}
  }
}
```

## Other tools on Tripletex MCP Server (30)

- `delete_timesheet_entry` — Destructive — https://policylayer.com/tools/adriantr-tripletex-mcp/delete-timesheet-entry.md
- `approve_supplier_invoice` — Financial — https://policylayer.com/tools/adriantr-tripletex-mcp/approve-supplier-invoice.md
- `get_current_time_clock` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/get-current-time-clock.md
- `get_recent_activities` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/get-recent-activities.md
- `get_recent_projects` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/get-recent-projects.md
- `get_supplier_invoice` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/get-supplier-invoice.md
- `get_supplier_invoices_for_approval` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/get-supplier-invoices-for-approval.md
- `get_timesheet_entry` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/get-timesheet-entry.md
- `get_timesheet_month` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/get-timesheet-month.md
- `get_total_hours` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/get-total-hours.md
- `search_activities` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/search-activities.md
- `search_invoices` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/search-invoices.md
- `search_projects` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/search-projects.md
- `search_supplier_invoices` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/search-supplier-invoices.md
- `search_timesheet_entries` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/search-timesheet-entries.md
- `search_timesheet_weeks` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/search-timesheet-weeks.md
- `whoami` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/whoami.md
- `approve_supplier_invoices` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/approve-supplier-invoices.md
- `approve_timesheet_month` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/approve-timesheet-month.md
- `approve_timesheet_week` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/approve-timesheet-week.md
- `complete_timesheet_month` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/complete-timesheet-month.md
- `complete_timesheet_week` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/complete-timesheet-week.md
- `create_timesheet_entry` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/create-timesheet-entry.md
- `reject_supplier_invoice` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/reject-supplier-invoice.md
- `reject_supplier_invoices` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/reject-supplier-invoices.md
- `reopen_timesheet_month` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/reopen-timesheet-month.md
- `reopen_timesheet_week` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/reopen-timesheet-week.md
- `start_time_clock` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/start-time-clock.md
- `stop_time_clock` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/stop-time-clock.md
- `update_timesheet_entry` — Write — https://policylayer.com/tools/adriantr-tripletex-mcp/update-timesheet-entry.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=adriantr-tripletex-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/adriantr-tripletex-mcp