marzban-mcp

Extend user subscription

marzban_users_extend

Extend a user's subscription by adding relative duration to their current expiration and extra data to their limit, reactivating expired or limited accounts without overwriting existing values.

Instructions

Renews a user: adds addDuration to their current expiration (or to now, if they have none or it already passed) and/or addData on top of their current data limit. If the user was expired or limited, status is moved back to active. Use this instead of marzban_users_update for renewals — it reads the current expire/limit first so the increment is relative, not an absolute overwrite.

Input Schema

Name	Required	Description
`addData`	No	Extra data allowance to add on top of the current limit, e.g. "10GB".
`username`	Yes
`addDuration`	No	Relative duration to add to the current expiration, e.g. "30d".

Output Schema

Name	Required	Description	Default
`note`	Yes
`user`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed19 schema fields changedv0.2.4Oct 23, 2026

removedInput schema / $schema

Removed value: -"https://json-schema.org/draft/2020-12/schema"

changedInput schema / properties / addData / anyOf

Previous value: -[
-  {
-    "maximum": 9007199254740991,
-    "minimum": 0,
-    "type": "integer"
-  },
-  {
-    "pattern": "^\\d+(?:[.,]\\d+)?\\s*(B|KB|KIB|MB|MIB|GB|GIB|TB|TIB|PB|PIB)?$",
-    "type": "string"
-  }
-]New value: +[
+  {
+    "minimum": 0,
+    "type": "integer"
+  },
+  {
+    "pattern": "^\\d+(?:[.,]\\d+)?\\s*(B|KB|KIB|MB|MIB|GB|GIB|TB|TIB|PB|PIB)?$",
+    "type": "string"
+  }
+]

removedOutput schema / $schema

Removed value: -"https://json-schema.org/draft/2020-12/schema"

changedOutput schema / properties / user / properties / admin / anyOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "discord_webhook": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "is_sudo": {
-        "type": "boolean"
-      },
-      "telegram_id": {
-        "anyOf": [
-          {
-            "maximum": 9007199254740991,
-            "minimum": -9007199254740991,
-            "type": "integer"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "username": {
-        "type": "string"
-      },
-      "users_usage": {
-        "anyOf": [
-          {
-            "maximum": 9007199254740991,
-            "minimum": -9007199254740991,
-            "type": "integer"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      }
-    },
-    "required": [
-      "username",
-      "is_sudo"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "discord_webhook": {
+        "anyOf": [
+          {
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "is_sudo": {
+        "type": "boolean"
+      },
+      "telegram_id": {
+        "anyOf": [
+          {
+            "type": "integer"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "username": {
+        "type": "string"
+      },
+      "users_usage": {
+        "anyOf": [
+          {
+            "type": "integer"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      }
+    },
+    "required": [
+      "username",
+      "is_sudo"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

changedOutput schema / properties / user / properties / auto_delete_in_days / anyOf

Previous value: -[
-  {
-    "anyOf": [
-      {
-        "maximum": 9007199254740991,
-        "minimum": -9007199254740991,
-        "type": "integer"
-      },
-      {
-        "type": "null"
-      }
-    ]
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "type": "integer"
+  },
+  {
+    "type": "null"
+  }
+]

changedOutput schema / properties / user / properties / data_limit / anyOf

Previous value: -[
-  {
-    "maximum": 9007199254740991,
-    "minimum": -9007199254740991,
-    "type": "integer"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "type": "integer"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / user / properties / excluded_inbounds / properties
```
Removed value: -{}
```

changedOutput schema / properties / user / properties / expire / anyOf

Previous value: -[
-  {
-    "anyOf": [
-      {
-        "maximum": 9007199254740991,
-        "minimum": -9007199254740991,
-        "type": "integer"
-      },
-      {
-        "type": "null"
-      }
-    ]
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "type": "integer"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / user / properties / inbounds / properties
```
Removed value: -{}
```
removedOutput schema / properties / user / properties / lifetime_used_traffic / maximum
```
Removed value: -9007199254740991
```
removedOutput schema / properties / user / properties / lifetime_used_traffic / minimum
```
Removed value: --9007199254740991
```

changedOutput schema / properties / user / properties / next_plan / anyOf

Previous value: -[
-  {
-    "anyOf": [
-      {
-        "additionalProperties": false,
-        "properties": {
-          "add_remaining_traffic": {
-            "default": false,
-            "type": "boolean"
-          },
-          "data_limit": {
-            "anyOf": [
-              {
-                "maximum": 9007199254740991,
-                "minimum": -9007199254740991,
-                "type": "integer"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "expire": {
-            "anyOf": [
-              {
-                "maximum": 9007199254740991,
-                "minimum": -9007199254740991,
-                "type": "integer"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "fire_on_either": {
-            "default": true,
-            "type": "boolean"
-          }
-        },
-        "type": "object"
-      },
-      {
-        "type": "null"
-      }
-    ]
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "add_remaining_traffic": {
+        "default": false,
+        "type": "boolean"
+      },
+      "data_limit": {
+        "anyOf": [
+          {
+            "type": "integer"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "expire": {
+        "anyOf": [
+          {
+            "type": "integer"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "fire_on_either": {
+        "default": true,
+        "type": "boolean"
+      }
+    },
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

changedOutput schema / properties / user / properties / note / anyOf

Previous value: -[
-  {
-    "anyOf": [
-      {
-        "type": "string"
-      },
-      {
-        "type": "null"
-      }
-    ]
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

changedOutput schema / properties / user / properties / on_hold_expire_duration / anyOf

Previous value: -[
-  {
-    "anyOf": [
-      {
-        "maximum": 9007199254740991,
-        "minimum": -9007199254740991,
-        "type": "integer"
-      },
-      {
-        "type": "null"
-      }
-    ]
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "type": "integer"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / user / properties / proxies / additionalProperties / properties
```
Removed value: -{}
```
removedOutput schema / properties / user / properties / proxies / properties
```
Removed value: -{}
```

changedOutput schema / properties / user / properties / sub_last_user_agent / anyOf

Previous value: -[
-  {
-    "anyOf": [
-      {
-        "type": "string"
-      },
-      {
-        "type": "null"
-      }
-    ]
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / user / properties / used_traffic / maximum
```
Removed value: -9007199254740991
```
removedOutput schema / properties / user / properties / used_traffic / minimum
```
Removed value: --9007199254740991
```

Changed5 schema fields changedv0.2.3Sep 7, 2026

removedOutput schema / properties / user / properties / created_at / format
```
Removed value: -"date-time"
```

removedOutput schema / properties / user / properties / created_at / pattern

Removed value: -"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|))$"

changedOutput schema / properties / user / properties / on_hold_timeout / anyOf

Previous value: -[
-  {
-    "anyOf": [
-      {
-        "format": "date-time",
-        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|))$",
-        "type": "string"
-      },
-      {
-        "type": "null"
-      }
-    ]
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

changedOutput schema / properties / user / properties / online_at / anyOf

Previous value: -[
-  {
-    "anyOf": [
-      {
-        "format": "date-time",
-        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|))$",
-        "type": "string"
-      },
-      {
-        "type": "null"
-      }
-    ]
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

changedOutput schema / properties / user / properties / sub_updated_at / anyOf

Previous value: -[
-  {
-    "anyOf": [
-      {
-        "format": "date-time",
-        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|))$",
-        "type": "string"
-      },
-      {
-        "type": "null"
-      }
-    ]
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

First observedv0.2.2Sep 2, 2026

TDQS

A4.6/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations establish that this is a non-read-only, non-destructive mutation. The description adds important behavior beyond that: increments are relative, a missing or past expiration falls back to now, and expired/limited users are reactivated. It lacks details on permissions or failure behavior, so it is not fully exhaustive.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a compact, front-loaded paragraph that immediately explains the operation, then covers edge cases and the sibling-tool alternative. Every sentence contributes actionable information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the existing output schema and annotations, the description supplies the missing behavioral context an agent needs: relative increment semantics, fallback behavior for expiration, reactivation behavior, and the distinction from marzban_users_update. Nothing essential for correct invocation appears absent.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 67%, and the description meaningfully explains the two mutating parameters: addDuration is added to current expiration or now, and addData is added on top of the current data limit. This adds important semantics beyond the schema's type and format constraints.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb and resource: it renews a Marzban user by incrementing expiration and/or data limit. It clearly distinguishes this relative-increment operation from marzban_users_update, which performs absolute overwrites.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

It explicitly names marzban_users_update as the alternative and explains that this tool should be used for renewals because it reads current values first. It does not explicitly state when not to use it, but the relative-vs-absolute distinction supplies clear selection guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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