Protocol Support

Protocol Support

MBC speaks the Minecraft protocol directly. Before logging in it pings the server, reads the real protocol version and adapts — so an exact version is not required.

Supported ranges

Version range	Examples	Protocol ID
1.8	1.8, 1.8.9	47
1.9 – 1.12	1.9, 1.10.2, 1.11, 1.12.2	47 – 340
1.13 – 1.16	1.13.2, 1.14.4, 1.15.2, 1.16.5	340 – 754
1.17 – 1.18	1.17, 1.18.2	755 – 758
1.19	1.19, 1.19.2, 1.19.4	759 – 760
1.20	1.20 – 1.20.6	763 – 766
1.21	1.21 – 1.21.8	767 – 773
25.x – 26.x	25.1 – 26.2	774 – 777

Any version inside a range that is not listed explicitly is mapped to the nearest known protocol ID; the actual server protocol is probed before login.

Other protocol features

• SRV records — resolves _minecraft._tcp.<domain> automatically, so a bare domain works without a port
• Offline mode — designed for online-mode=false servers; premium (online-mode) login is still in development
• Compression — handles the Set Compression packet when the server enables it
• Chat — legacy and modern chat packets, section codes and JSON chat components are rendered with colours in the console
• Keepalive — answered automatically for every connection, including in multi-bot mode

Service status

MBC uses these endpoints for the startup check, both skipped with fast_start:

• Version check: https://shit.pub/s/developer/minecraft/client/MinecraftBotClient-MBC/verify/txt.txt
• Announcements: https://shit.pub/s/developer/minecraft/client/MinecraftBotClient-MBC/announcement.txt