Command reference

List available commands or show usage for one command.

Differences: No hover or clickable links.

Online players.

Differences: uuids prints the UUID next to each name.

An action in chat under your name.

A message from the server.

Private message to a player.

Differences: No message history or /socialspy.

Message to your team.

Differences: Only the sender's team; without a team it returns commands.teammsg.failed.

Team members, colour, prefix and collisions.

Differences: Friendly fire does not affect damage: team combat is not implemented.

Send a text component to chat.

Show a title, subtitle or action bar.

Play or stop a sound.

Differences: Categories (master…ui) work; beyond volume * 16 the sound plays with minVolume, 0 sends nothing. /stopsound <targets> [<source>] [<sound>], * means no category.

Give an item to a player.

Differences: Enchantments, name, lore, custom_data and damage; other components are stored for comparison but not sent to the client.

Clear an inventory.

Differences: Only matching components are cleared; #tag removes every item in the tag.

Apply or remove an effect.

Differences: infinite and hideParticles are supported.

Add, set or query experience.

Change the game mode.

Kill an entity.

Differences: Works on mobs and item entities too.

Teleport an entity, including ^ and facing.

Differences: ^ is relative to the executor's view; without angles the rotation is kept.

Deal damage.

Differences: fall, out_of_world, starve, magic, wither, arrow; unknown types become ordinary damage.

Rotate an entity.

Set a respawn point.

Differences: Stored in the player save (SpawnX/Y/Z).

Add, remove or list entity tags.

Differences: Up to 1024 tags; the tag= selector sees them.

Play an arm swing.

Differences: mainhand/offhand, animations none/whack/stab; items and projectiles return notliving.

Switch to a spectator camera.

Differences: Spectator mode only; sends set_camera.

Mount or dismount a passenger.

Differences: A passenger cannot mount a player or close a loop; sends set_passengers.

Change your trigger score.

Differences: Works after scoreboard players enable; without it the result is unprimed.

Random number.

Differences: roll prints to chat, value returns a number; the sequence keeps its seed until restart. The generator is not bit-identical to vanilla RandomSequence.

Create and configure a boss bar.

Differences: Viewers are set with set players; the bar returns on join and respawn. Sky, music and fog are not implemented.

Enchant the held item.

Differences: Level 0 removes enchantments; incompatible ones are not replaced; a book stores stored_enchantments.

Spread entities across an area.

Differences: Height is the motion_blocking surface of a loaded chunk; under does not search caves below.

Stopwatch.

Differences: Counts real time, not ticks; query for execute store returns floor(seconds × scale).

Screen effect.

Differences: Sends the full post_effects list.

Attribute base and modifiers.

Differences: Players use the player set, mobs the mob set; sends update_attributes. Session sprint is not included in get.

Waypoint colour and style.

Differences: Only players have a waypoint; mobs and items return argument.waypoint.invalid. The command does not create one; sends waypoint.

Close a dialog.

Differences: clear sends an empty clear_dialog. show returns not found: there is no dialog registry.

Particles for nearby players.

Differences: Simple types (flame, heart, …) use level_particles. dust takes <r> <g> <b> <scale>. block, item, vibration and similar return particle.invalidOptions. Beyond 32 blocks force is required (up to 512).

Put an item into a slot.

Differences: Only replace entity. Slots: weapon, weapon.mainhand, weapon.offhand, weapon.*, armor.head…armor.feet, armor.*, hotbar.N, inventory.N, container.N. Mobs have no slots. block, from, modify, fill and override are not declared.

Give or drop loot from a table.

Differences: give players … loot, spawn <pos> loot, insert <pos> loot, replace block <pos> <slot> [count] loot. The key is a path under loot_table. kill, fish and mine need a damage source or a fishing rod. replace entity is not declared.

Place a block.

Differences: keep leaves non-air blocks alone, destroy drops the old block, strict fails without changing anything.

Fill an area with blocks.

Differences: Limit is 32,768 blocks; destroy drops blocks; the replace filter accepts a block name or #tag.

Copy a block region.

Differences: replace/masked/filtered, normal/force/move; strict does not wake neighbours; the chunk must be loaded; current dimension only.

Summon a mob.

Differences: Four mobs exist in the world: cow, pig, sheep and chicken.

Set the weather.

Differences: Rain is visible, but precipitation is not ticked.

Show or change a world rule.

Differences: 59 rules from 26.3; the tick reads a subset.

Set, add or query time.

Differences: query returns time and gametime as in 26.3 (daytime is still accepted).

Set the difficulty.

Show the world seed.

Set the world spawn.

Configure the world border.

Differences: Centre, diameter, warning and damage are stored and sent to the client; edge damage is not applied yet.

Keep a chunk in the simulation.

Differences: The disk load queue is not maintained separately.

Find a biome, point of interest or structure.

Differences: Biome: radius 4096, step 32, height is the column surface. Structures: villages, outposts, abandoned camps, desert pyramids, jungle temples, witch huts, igloos, shipwrecks, mineshafts, ocean monuments, strongholds, woodland mansions, ruined portals, ocean ruins and trial chambers; other ids return not found. poi does not create chunks and uses radius 256.

Replace the biome in an area.

Differences: Chunks must be loaded; sends chunks_biomes; volume is limited by max_block_modifications.

Place a structure template.

Differences: Only template. Templates come from data/minecraft/structure. Blocks are placed as setblock replace; block entities are not filled. integrity and seed report that processors are unavailable. feature, jigsaw and structure are not declared.

Manage score objectives.

Differences: modify supports displayname, rendertype and numberformat (blank, fixed, styled; a bare word resets the format). The objective format is sent in set_objective.

Manage score values.

Differences: display numberformat is stored on the score and is not written to set_score; enable opens a trigger objective.

Read and change block or entity NBT.

Differences: Path Foo.Bar[0], merge, modify set|merge|append|prepend|insert.

Chain execution contexts and run a command.

Differences: align, anchored, on, store into scores and block or entity NBT; summon continues from the new entity; if/unless support biome, blocks, data, loaded, items, slots and score matches; positioned over sets Y from the heightmap.

Grant or revoke operator rights.

Differences: Uses vanilla ops.json.

Kick a player.

Differences: The reason is included in the response.

Manage the whitelist.

Differences: When enabled, the list is checked on login; operators pass.

Bans by name and IP.

Differences: Name and IP are checked on login.

Reload ops.json.

Differences: There are no data packs.

Control the server tick.

Differences: sprint accelerates the loop.

Tick profile.

Differences: Writes per-tick MSPT to debug/profile-*.txt, not spark.

Load snapshot and profile.

Save the world and shut down.

Server version.

Control autosaving.

Differences: save-all requests an autosave outside the schedule.

Publish to LAN.

Differences: Only the flag is set; UPnP is not touched.

Transfer a player to another server.

Differences: The client receives transfer, then the session closes.

Idle timeout.

Differences: No game packets for N minutes closes the session; 0 disables the timeout.

Return from a function.

Differences: There are no functions: every form reports that the command works only inside a function.

TPS and MSPT line.

Differences: Chunkwake extension; the format is consumed by chunkwake-lab.

Load snapshot.

Differences: Chunkwake extension.