minecraft_commands.json

{
    "achievement": {
        "usage": "<give|take> <name|*> [player]"
    },
    "advancement": {
        "see": [
            "http://minecraft.gamepedia.com/Commands#advancement",
            "http://minecraft.gamepedia.com/Advancements"
        ],
        "usage": [
            "<grant|revoke> <player> <only|until|from|through> <advancement> [criterion]",
            "<grant|revoke> <player> everything",
            "test <player> <advancement> [criterion]"
        ]
    },
    "advancement test": {
        "usage": "<player> <advancement> [criterion]"
    },
    "as": {
        "usage": "<entity> <command>"
    },
    "at": {
        "usage": "<entity> <command>"
    },
    "ban": {
        "usage": "<name> [reason …]"
    },
    "ban-ip": {
        "usage": "<address|name> [reason ...]"
    },
    "banlist": {
        "usage": [
            "ips",
            "players"
        ]
    },
    "blockdata": {
        "usage": "<x> <y> <z> <dataTag>"
    },
    "clear": {
        "usage": "[player] [item] [data] [maxCount] [dataTag]"
    },
    "clone": {
        "usage": "<x1> <y1> <z1> <x2> <y2> <z2> <x> <y> <z> [maskMode] [cloneMode] [TileName] [dataValue|state]"
    },
    "debug": {
        "usage": "<start|stop>"
    },
    "defaultgamemode": {
        "usage": "[mode]"
    },
    "detect": {
        "usage": "<x y z> <block> <command>"
    },
    "deop": {
        "usage": "<player>"
    },
    "difficulty": {
        "usage": "difficulty"
    },
    "effect": {
        "usage": [
            "<player> clear",
            "<player> <effect> [seconds] [amplifier] [hideParticles]"
        ]
    },
    "enchant": {
        "usage" : "<player> <enchantment ID> [level]"
    },
    "entitydata": {
        "usage": "<entity> <dataTag>"
    },
    "execute": {
        "usage": [
            "<entity> <x> <y> <z> <command>",
            "<entity> <x> <y> <z> detect <x> <y> <z> <block> <dataValue|-1|state|*> <command>"
        ]
    },
    "fill": {
        "usage": [
            "<x1> <y1> <z1> <x2> <y2> <z2> <block> [dataValue|state] [oldBlockHandling] [dataTag]",
            "<x1> <y1> <z1> <x2> <y2> <z2> <block> <dataValue|state> replace [replaceTileName] [replaceDataValue]"
        ]
    },
    "function": {
        "see": [
            "http://minecraft.gamepedia.com/Commands#function",
            "http://minecraft.gamepedia.com/Function"
        ],
        "usage": "<function> [if|unless] [selector]"
    },
    "gamemode": {
        "usage": "<mode> [player]"
    },
    "gamerule": {
        "usage": "<rule name> [value]"
    },
    "give": {
        "usage": "<player> <item> [amount] [data] [dataTag]"
    },
    "help": {
        "usage": "[page|command name]"
    },
    "kick": {
        "usage": "<player> [reason …]"
    },
    "kill": {
        "usage": "[player|entity]"
    },
    "list": {
        "usage": "[uuids]"
    },
    "locate": {
        "usage": "<StructureType>"
    },
    "me": {
        "usage": "<action ...>"
    },
    "msg": {
        "usage": "<player> <message ...>"
    },
    "offset": {
        "usage": "<x y z> <command>"
    },
    "op": {
        "usage": "<player>"
    },
    "pardon": {
        "usage": "<name>"
    },
    "pardon-ip": {
        "usage": "<address>"
    },
    "particle": {
        "usage": "<name> <x> <y> <z> <xd> <yd> <zd> <speed> [count] [mode] [player] [params ...]"
    },
    "playsound": {
        "usage": "<sound> <source> <player> [x] [y] [z] [volume] [pitch] [minimumVolume]"
    },
    "publish": {
    },
    "recipe": {
        "usage": "<give|take> [player] <name|*>"
    },
    "reload": {
    },
    "replaceitem": {
        "usage": [
            "block <x> <y> <z> <slot> <item> [amount] [data] [dataTag]",
            "entity <selector> <slot> <item> [amount] [data] [dataTag]"
        ]
    },
    "replaceitem block": {
        "usage": [
            "<x> <y> <z> <slot> <item> [amount] [data] [dataTag]"
        ]
    },
    "replaceitem entity": {
        "usage": [
            "entity <selector> <slot> <item> [amount] [data] [dataTag]"
        ]
    },
    "save": {},
    "save-all": {
        "usage": "[flush]"
    },
    "save-off": {},
    "save-on": {},
    "say": {
        "usage": "<message ...>"
    },
    "scoreboard": {
        "see": [
            "http://minecraft.gamepedia.com/Commands#scoreboard",
            "http://minecraft.gamepedia.com/Scoreboard#Command_reference"
        ],
        "usage": "<objectives|players|teams> ..."
    },
    "scoreboard objectives": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Objectives_commands",
        "usage": [
            "list",
            "add <name> <criteria> [display name...]",
            "remove <name>",
            "setdisplay <slot> [objective]"
        ]
    },
    "scoreboard players": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Players_commands",
        "usage": [
            "list [playername]",
            "set <player> <objective> <score> [dataTag]",
            "add <player> <objective> <count> [dataTag]",
            "remove <player> <objective> <count> [dataTag]",
            "reset <player> [objective]",
            "enable <player> <trigger>",
            "test <player> <objective> <min> [max]",
            "operation <targetName> <targetObjective> <operation> <selector> <objective>"
        ]
    },
    "scoreboard players list": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Players_commands",
        "usage": "[playername]"
    },
    "scoreboard players set": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Players_commands",
        "usage": "<player> <objective> <score> [dataTag]"
    },
    "scoreboard players add": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Players_commands",
        "usage": "<player> <objective> <count> [dataTag]"
    },
    "scoreboard players remove": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Players_commands",
        "usage": "<player> <objective> <count> [dataTag]"
    },
    "scoreboard players reset": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Players_commands",
        "usage": "<player> [objective]"
    },
    "scoreboard players enable": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Players_commands",
        "usage": "<player> <trigger>"
    },
    "scoreboard players test": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Players_commands",
        "usage": "<player> <objective> <min> [max]"
    },
    "scoreboard players operation": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Players_commands",
        "usage": "<targetName> <targetObjective> <operation> <selector> <objective>"
    },
    "scoreboard players tag": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Tags_commands",
        "usage": [
            "<player> add <tagName> [dataTag]",
            "<player> remove <tagName> [dataTag]",
            "<player> list"
        ]
    },
    "scoreboard teams": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Teams_commands",
        "usage": [
            "list [teamname]",
            "add <name> [display name...]",
            "remove <name>",
            "empty <name>",
            "join <team> [players...]",
            "leave [players...]",
            "option <team> color <value>",
            "option <team> friendlyfire <true|false>",
            "option <team> seeFriendlyInvisibles <true|false>",
            "option <team> nametagVisibility <never|hideForOtherTeams|hideForOwnTeam|always>",
            "option <team> deathMessageVisibility <never|hideForOtherTeams|hideForOwnTeam|always>",
            "option <team> collisionRule <always|never|pushOwnTeam|pushOtherTeams>"
        ]
    },
    "scoreboard teams list": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Teams_commands",
        "usage": "[teamname]"
    },
    "scoreboard teams add": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Teams_commands",
        "usage": "<name> [display name...]"
    },
    "scoreboard teams remove": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Teams_commands",
        "usage": "<name>"
    },
    "scoreboard teams empty": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Teams_commands",
        "usage": "<name>"
    },
    "scoreboard teams join": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Teams_commands",
        "usage": "<team> [players...]"
    },
    "scoreboard teams leave": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Teams_commands",
        "usage": "[players...]"
    },
    "scoreboard teams option": {
        "see": "http://minecraft.gamepedia.com/Scoreboard#Teams_commands",
        "usage": [
            "<team> color <value>",
            "<team> friendlyfire <true|false>",
            "<team> seeFriendlyInvisibles <true|false>",
            "<team> nametagVisibility <never|hideForOtherTeams|hideForOwnTeam|always>",
            "<team> deathMessageVisibility <never|hideForOtherTeams|hideForOwnTeam|always>",
            "<team> collisionRule <always|never|pushOwnTeam|pushOtherTeams>"
        ]
    },
    "seed": {},
    "setblock": {
        "usage": "<x> <y> <z> <block> [dataValue|state] [oldBlockHandling] [dataTag]"
    },
    "setidletimeout": {
        "usage": "<Minutes until kick>"
    },
    "setworldspawn": {
        "usage": "<x> <y> <z>"
    },
    "spawnpoint": {
        "usage": "<player> <x> <y> <z>"
    },
    "spreadplayers": {
        "usage": "<x> <z> <spreadDistance> <maxRange> <respectTeams> <player …>"
    },
    "stats": {
        "see": [
            "http://minecraft.gamepedia.com/Commands#stats",
            "http://minecraft.gamepedia.com/Tutorials/Command_stats"
        ],
        "usage": [
            "block <x> <y> <z> clear <stat>",
            "block <x> <y> <z> set <stat> <selector> <objective>",
            "entity <selector2> clear <stat>",
            "entity <selector2> set <stat> <selector> <objective>"
        ]
    },
    "stats block": {
        "see": [
            "http://minecraft.gamepedia.com/Commands#stats",
            "http://minecraft.gamepedia.com/Tutorials/Command_stats"
        ],
        "usage": [
            "<x> <y> <z> clear <stat>",
            "<x> <y> <z> set <stat> <selector> <objective>"
        ]
    },
    "stats entity": {
        "see": [
            "http://minecraft.gamepedia.com/Commands#stats",
            "http://minecraft.gamepedia.com/Tutorials/Command_stats"
        ],
        "usage": [
            "<selector2> clear <stat>",
            "<selector2> set <stat> <selector> <objective>"
        ]
    },
    "stop": {},
    "stopsound": {
        "usage": "<player> [source] [sound]"
    },
    "summon": {
        "usage": "<EntityName> [x] [y] [z] [dataTag]"
    },
    "teleport": {
        "usage": "<target entity> <x> <y> <z> [<y-rot> <x-rot>]"
    },
    "tell": {
        "usage": "<player> <message ...>"
    },
    "tellraw": {
        "usage": "<player> <raw json message>"
    },
    "testfor": {
        "usage": "<player> [dataTag]"
    },
    "testforblock": {
        "usage": "<x> <y> <z> <block> [dataValue|state] [dataTag]"
    },
    "testforblocks": {
        "usage": "<x1> <y1> <z1> <x2> <y2> <z2> <x> <y> <z> [mode]"
    },
    "time": {
        "usage": "<add|query|set> <value>"
    },
    "title": {
        "usage": [
            "<player> clear",
            "<player> reset",
            "<player> title <raw json title>",
            "<player> subtitle <raw json title>",
            "<player> actionbar <raw json title>",
            "<player> times <fadeIn> <stay> <fadeOut>"
        ]
    },
    "toggledownfall": {},
    "tp": {
        "usage": [
            "[target player] <destination player>",
            "[target player] <x> <y> <z> [<yaw> <pitch>]"
        ]
    },
    "trigger": {
        "usage": "<objective> <add|set> <value>"
    },
    "w": {
        "usage": "<player> <message ...>"
    },
    "weather": {
        "usage": "<clear|rain|thunder> [duration]"
    },
    "whitelist": {
        "usage": [
            "add <player>",
            "list",
            "off",
            "on",
            "reload",
            "remove <player>"
        ]
    },
    "worldborder": {
        "usage": [
            "add <distance> [time]",
            "center <x> <z>",
            "damage amount <damagePerBlock>",
            "damage buffer <distance>",
            "get",
            "set <distance> [time]",
            "warning distance <distance>",
            "warning time <time>"
        ]
    },
    "xp": {
        "usage": [
            "<amount> [player]",
            "<amount>L [player]"
        ]
    }
}

Updated from: https://gist.github.com/maxaxik/b25876b1c5770773715605f738004a52