# get_supplier_invoice

Get a single supplier invoice by ID.

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

## Facts

- Tool: `get_supplier_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_supplier_invoice",
    "arguments": {}
  }
}
```

## Why get_supplier_invoice is rated Low

This tool retrieves a single supplier invoice record by its identifier. It performs a read-only query operation that does not create, modify, delete, or execute any actions. While the server manages financial data (invoices), this particular tool only retrieves information without moving money or creating financial obligations.

From the tool's own definition: "Tool name is 'get_supplier_invoice' and description states 'Get a single supplier invoice by ID.' The verb 'get' indicates data retrieval with no modification or side effects."

## Use case

AI agents call get_supplier_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_supplier_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_invoice` — Read — https://policylayer.com/tools/adriantr-tripletex-mcp/get-invoice.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_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