# 3xui MCP server

Agent View of the PolicyLayer registry record for 3xui: identity, probed posture, risk grade, and all 12 tools classified. HTML page: https://policylayer.com/tools/3xui-mcp

## Facts

- Server id: `3xui-mcp`
- Install: `npx -y 3xui-mcp`
- Homepage: https://www.npmjs.com/package/3xui-mcp
- Registry record: grade F, identity unverified
- Lifecycle: active
- Rate-limited: no
- Tools: 12 (9 with introspected schema)
- Tool categories present: Destructive, Read, Write
- Context-window cost: 1725 tokens per request — https://policylayer.com/token-cost/3xui-mcp
- Tags: 3xui mcp, admin
- Record last modified: 2026-09-04T14:08:44.309Z

## Tools (12)

| Tool | Category | Risk | Record |
| --- | --- | --- | --- |
| `delete_client` | Destructive | Critical | https://policylayer.com/tools/3xui-mcp/delete-client.md |
| `delete_inbound` | Destructive | Critical | https://policylayer.com/tools/3xui-mcp/delete-inbound.md |
| `get_client` | Read | Low | https://policylayer.com/tools/3xui-mcp/get-client.md |
| `get_client_traffic` | Read | Low | https://policylayer.com/tools/3xui-mcp/get-client-traffic.md |
| `get_inbound` | Read | Low | https://policylayer.com/tools/3xui-mcp/get-inbound.md |
| `list_clients` | Read | Low | https://policylayer.com/tools/3xui-mcp/list-clients.md |
| `list_inbounds` | Read | Low | https://policylayer.com/tools/3xui-mcp/list-inbounds.md |
| `list_online_clients` | Read | Low | https://policylayer.com/tools/3xui-mcp/list-online-clients.md |
| `create_client` | Write | Medium | https://policylayer.com/tools/3xui-mcp/create-client.md |
| `create_inbound` | Write | Medium | https://policylayer.com/tools/3xui-mcp/create-inbound.md |
| `update_client` | Write | Medium | https://policylayer.com/tools/3xui-mcp/update-client.md |
| `update_inbound` | Write | Medium | https://policylayer.com/tools/3xui-mcp/update-inbound.md |

## Tool descriptions

- `delete_client` — Permanently delete a client by exact email. This cannot be undone.
- `delete_inbound` — Permanently delete an inbound and all of its clients by ID. This cannot be undone.
- `get_client` — Get full details (settings, inbound, traffic limits) for a single client by its exact email. Use list_clients first if you do not know the exact email.
- `get_client_traffic` — Get upload/download traffic totals and limits for a single client by exact email.
- `get_inbound` — Get full details of a single inbound (protocol settings, stream settings, clients, traffic) by its numeric ID. Use list_inbounds first to find the ID.
- `list_clients` — List every client across all inbounds on the panel, with their email, protocol, enabled state, and traffic limits.
- `list_inbounds` — List every inbound configured on the 3x-ui panel, including their clients, protocol, port, and traffic stats.
- `list_online_clients` — List the emails of clients that are currently connected/online.
- `create_client` — Create a new client on an existing inbound with auto-generated credentials (UUID/password/keys as appropriate for the protocol). Returns the generated credentials and connection info — surface these to the user, they are not retrievable …
- `create_inbound` — Create a new inbound on the panel. Recommend calling get_inbound on a similar existing inbound first to see the exact shape expected for settings/streamSettings/sniffing on this panel version.
- `update_client` — Update an existing client's traffic limit, expiry, or enabled state. Only the fields you pass are changed; everything else on the client is preserved.
- `update_inbound` — Update an existing inbound by ID. This replaces the inbound configuration, so fetch it with get_inbound first and merge your changes into the full object rather than sending a partial one.

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## 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`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=3xui-mcp · API: https://policylayer.com/registry/api · Recommended policies for every tool: https://policylayer.com/policies/3xui-mcp