PrismarineJS/node-minecraft-protocol

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Parse and serialize minecraft packets, plus authentication and encryption.

Stars: 1.4k
Forks: 290
Open beginner issues: 0
Indexed issues: 113
Avg merge: 4d 8h
Merged PRs (30d): 7

Dominant language: JavaScript
License: BSD-3-Clause
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

Open All

113 open issues indexed

`unregisterChannel()` never unregisters a channel Open

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

PrismarineJS/node-minecraft-protocol#1534 · Opened Sep 17, 2026
`setPreviouslyAcknowledged()` stores an array length instead of the acknowledgement list Open

Difficulty 1/5 Under an hour Newbie friendliness 92/100

PrismarineJS/node-minecraft-protocol#1535 · Opened Sep 17, 2026
cant connect to server example `Internal Exception:io.netty.handler.codec` Open

possible bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

PrismarineJS/node-minecraft-protocol#1504 · Opened Jul 6, 2026
Missing type hint for ServerOptions encryption Open

possible bug

Difficulty 1/5 Under an hour Newbie friendliness 78/100

PrismarineJS/node-minecraft-protocol#1503 · 1 comment · Opened Jul 5, 2026
custom_click_action packet - incorrect nbt buffer size? Open

possible bug

Difficulty 3/5 1-2 days Newbie friendliness 50/100

PrismarineJS/node-minecraft-protocol#1484 · 4 comments · Opened Apr 26, 2026
Proxy Protocol/HA Proxy support Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

PrismarineJS/node-minecraft-protocol#1468 · Opened Mar 2, 2026
node-hytale-protocol Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

PrismarineJS/node-minecraft-protocol#1451 · 1 comment · 2 reactions · Opened Jan 13, 2026
How to make player enters my prismarine world??? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

PrismarineJS/node-minecraft-protocol#1446 · 1 comment · Opened Dec 17, 2025
example .../minecraft-protocol/examples/proxy/proxy.js not work for version 1.21.8 Open

possible bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

PrismarineJS/node-minecraft-protocol#1434 · 4 comments · Opened Sep 15, 2025
Network Protocol Error with examples/server Open

possible bug

Difficulty 3/5 1-2 days Newbie friendliness 40/100

PrismarineJS/node-minecraft-protocol#1432 · 1 comment · Opened Sep 12, 2025
Disconnecting players during the Login phase results in errors in 1.19+ Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

PrismarineJS/node-minecraft-protocol#1425 · 1 comment · Opened Aug 28, 2025
Fix test around sound_effect Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

PrismarineJS/node-minecraft-protocol#1421 · Opened Aug 17, 2025
Registry error on 1.21.5 Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

PrismarineJS/node-minecraft-protocol#1417 · 2 reactions · Opened Aug 3, 2025
Proxy with dynamic cross version support enabled doesn't function in 1.20.2+ Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

PrismarineJS/node-minecraft-protocol#1401 · Opened Jun 13, 2025
Feature: Separate debug mode flags for blobs Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

PrismarineJS/node-minecraft-protocol#1396 · 2 comments · Opened May 4, 2025
Feature: Use old protocol data to try and connect to a snapshot server. Open

waiting for info

Difficulty 5/5 Over a week Newbie friendliness 25/100

PrismarineJS/node-minecraft-protocol#1395 · 2 comments · Opened May 4, 2025
TypeError: Cannot read properties of null (reading 'supportFeature') when using the API wrong. Open

possible bug

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

PrismarineJS/node-minecraft-protocol#1394 · 2 comments · Opened May 4, 2025
Failed to decode packet cookie_request Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

PrismarineJS/node-minecraft-protocol#1389 · 28 comments · Opened Apr 3, 2025
server with latest versions results a protocol error Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

PrismarineJS/node-minecraft-protocol#1384 · 1 comment · Opened Mar 24, 2025
item_display metadata not read when head profile is present Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PrismarineJS/node-minecraft-protocol#1380 · 2 comments · Opened Mar 9, 2025
Manage Account separatly Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

PrismarineJS/node-minecraft-protocol#1378 · 2 comments · Opened Mar 6, 2025
Arclight Update Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

PrismarineJS/node-minecraft-protocol#1377 · Opened Mar 4, 2025
Potions are causing inventory to crash. Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PrismarineJS/node-minecraft-protocol#1374 · 1 comment · Opened Feb 16, 2025
proxy example: anticheat flags for actions that wouldn't get you kicked on the first time, before recreating the target client. Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 28/100

PrismarineJS/node-minecraft-protocol#1358 · 1 comment · Opened Dec 14, 2024
[MC 1.20.6 - Protocol 1.49.0] nmp server: Failed to verify username Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PrismarineJS/node-minecraft-protocol#1340 · 13 comments · 1 reaction · Opened Oct 13, 2024
Fix serialization issue in old version for mc server test Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 32/100

PrismarineJS/node-minecraft-protocol#1337 · 7 comments · Opened Oct 12, 2024
Vanilla client cannot connect to example server Open

possible bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

PrismarineJS/node-minecraft-protocol#1314 · 1 comment · Opened Aug 10, 2024
Entity Effect proxy Open

possible bug

Difficulty 5/5 Over a week Newbie friendliness 20/100

PrismarineJS/node-minecraft-protocol#1304 · Opened Jun 9, 2024
mc.createClient doesnt check for SRV dns records Open

possible bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

PrismarineJS/node-minecraft-protocol#1298 · 1 comment · Opened Apr 19, 2024
Ladders arent working Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 28/100

PrismarineJS/node-minecraft-protocol#1297 · 3 comments · Opened Apr 18, 2024
Error: Failed to obtain profile data for X, does the account own minecraft? Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 28/100

PrismarineJS/node-minecraft-protocol#1295 · 1 comment · Opened Mar 28, 2024
"Chunk size is 42 but only 2 was read" error Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 18/100

PrismarineJS/node-minecraft-protocol#1279 · 7 comments · Opened Jan 3, 2024
custom_payload packet won't encode properly. Open

possible bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PrismarineJS/node-minecraft-protocol#1256 · 8 comments · 3 reactions · Opened Aug 26, 2023
Chat commands do not support chat previewing Open

new feature

Difficulty 4/5 3-5 days Newbie friendliness 30/100

PrismarineJS/node-minecraft-protocol#1251 · 2 comments · Opened Aug 5, 2023
Java client throwing DecoderException on client.end Open

possible bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

PrismarineJS/node-minecraft-protocol#1087 · 15 comments · Opened Feb 25, 2023
painting variants Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

PrismarineJS/node-minecraft-protocol#1083 · Opened Feb 21, 2023
Oficial client with microsoft auth is not connect to 1.12.2 vanilla server via ./node_modules/minecraft-protocol/examples/proxy Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PrismarineJS/node-minecraft-protocol#1030 · 3 comments · Opened Aug 4, 2022
Custom Authentication Function Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

PrismarineJS/node-minecraft-protocol#1025 · 9 comments · Opened Jul 27, 2022
set_creative_slot failure Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

PrismarineJS/node-minecraft-protocol#1016 · Opened Jul 15, 2022
Adding custom latency delay Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

PrismarineJS/node-minecraft-protocol#1005 · 3 comments · Opened Jun 7, 2022
node-minecraft-protocol can throw an unhandled exception when the returned disconnect string is invalid. Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

PrismarineJS/node-minecraft-protocol#989 · 1 comment · Opened Apr 16, 2022
Example doesn't work on 1.18.2 Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

PrismarineJS/node-minecraft-protocol#977 · 10 comments · 12 reactions · Opened Mar 30, 2022
Having some issues running a higher level script, errors pointing to minecraft-protocol Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

PrismarineJS/node-minecraft-protocol#959 · Opened Feb 7, 2022
Socks5 Proxy Authentication Error Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

PrismarineJS/node-minecraft-protocol#953 · Opened Jan 26, 2022
Client not following the correct sequence Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

PrismarineJS/node-minecraft-protocol#949 · 6 comments · Opened Jan 5, 2022
Detect server side auto version and pick only supported versions Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

PrismarineJS/node-minecraft-protocol#945 · Opened Dec 24, 2021
Typo in session object returned after authentication Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

PrismarineJS/node-minecraft-protocol#940 · Opened Dec 19, 2021
guess microsoft or mojang auth Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

PrismarineJS/node-minecraft-protocol#926 · 1 comment · Opened Dec 2, 2021
`has_fixed` is missing from the dimension field in the `Join Game` client bound packet Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

PrismarineJS/node-minecraft-protocol#900 · 1 comment · Opened Aug 23, 2021
server_custom_channel example doesn't work Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

PrismarineJS/node-minecraft-protocol#872 · 3 comments · Opened Jul 4, 2021

PrismarineJS/node-minecraft-protocol

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