pokemon-showdown/sim
livid washed 1d8968acdf
Randomized formats update (#11782)
* Randomized set updates

* fix some things

* add resttalk primarina gen 7

* Create Pokemon incompability system

* Simplify code

* tghost oinkolognes

* Give sash back to doubles smeargle

* Give sash back to doubles smeargle
2026-03-01 03:20:05 -07:00
..
examples Update to ESLint 9 (#10926) 2025-02-25 20:03:46 -08:00
tools Implement Mega Stones as {key: value} pairs (#11684) 2026-01-08 14:59:22 -07:00
battle-actions.ts Fix Stomping Tantrum incorrectly doubling after canceled two-turn moves (#11760) 2026-02-13 09:57:20 -07:00
battle-queue.ts Fix comments for priority in the sim (#11385) 2025-08-24 13:19:27 -07:00
battle-stream.ts TypeScript: Enable noImplicitOverride 2025-02-26 14:38:32 -08:00
battle.ts Implement Zacian and Zamazenta transformations as species conditions (#11748) 2026-02-17 18:34:52 -07:00
dex-abilities.ts Implement Mega Stones as {key: value} pairs (#11684) 2026-01-08 14:59:22 -07:00
dex-conditions.ts Implement Zacian and Zamazenta transformations as species conditions (#11748) 2026-02-17 18:34:52 -07:00
dex-data.ts Implement Mega Stones as {key: value} pairs (#11684) 2026-01-08 14:59:22 -07:00
dex-formats.ts Add onChooseTeam event for formats (#11476) 2025-10-06 02:20:44 -06:00
dex-items.ts Implement Mega Stones as {key: value} pairs (#11684) 2026-01-08 14:59:22 -07:00
dex-moves.ts Implement Mega Stones as {key: value} pairs (#11684) 2026-01-08 14:59:22 -07:00
dex-species.ts Remove hardcoding of formes inheriting learnsets (#11750) 2026-02-17 18:33:57 -07:00
DEX.md Move packed team docs out of PROTOCOL.md 2021-06-10 15:04:25 -07:00
dex.ts Add forme names as fuzzy matches 2025-05-30 19:54:00 -07:00
field.ts Update to ESLint 9 (#10926) 2025-02-25 20:03:46 -08:00
global-types.ts Randomized formats update (#11782) 2026-03-01 03:20:05 -07:00
index.ts Update to ESLint 9 (#10926) 2025-02-25 20:03:46 -08:00
NONSTANDARD.md Move packed team docs out of PROTOCOL.md 2021-06-10 15:04:25 -07:00
pokemon.ts Gen 1: Fix underflow glitch applied to mimicked duplicate moves (#11746) 2026-02-17 18:36:37 -07:00
prng.ts Correctly support Node 18 2025-02-26 21:42:14 -08:00
README.md Slightly improve documentation 2021-11-13 14:17:47 -05:00
side.ts Add onChooseTeam event for formats (#11476) 2025-10-06 02:20:44 -06:00
SIM-PROTOCOL.md SIM-PROTOCOL: Update for clarity 2025-05-13 13:29:53 -07:00
SIMULATOR.md Slightly improve sim docs for stdio usage 2024-01-17 21:23:20 -08:00
state.ts Remove useless spreads (#11132) 2025-05-24 16:19:48 -07:00
team-validator.ts Remove hardcoding of formes inheriting learnsets (#11750) 2026-02-17 18:33:57 -07:00
TEAMS.md Update packed team Tera Type documentation (#9185) 2022-12-30 13:47:38 -06:00
teams.ts Add October PMotM: Blank Canvas Random Battle (#11463) 2025-10-01 12:41:03 -06:00
tsconfig.json Migrate to esbuild for compilation (#9203) 2022-12-22 15:19:29 -06:00

Node.js package

Pokémon Showdown has a Node.js API. It currently only works in Node, not browsers, although we're working on unifying it to work in browsers.

You can install it with the usual:

npm install pokemon-showdown

And you can use it to do the following things:

Simulating battles

See: sim/SIMULATOR.md

Also available as a command-line API!

Validating, generating, and converting teams

See: sim/TEAMS.md

Also available as a command-line API!

Getting Pokédex information

See: sim/DEX.md

Undocumented APIs

Pokémon Showdown's Node.js package has TypeScript definitions for everything it exports, including a lot of undocumented APIs.

Please be aware that any undocumented API is unstable and should not be relied upon not to change. We do not follow semver for undocumented APIs. If you really want to use an undocumented API, remember to pin the exact PS version in your dependencies. You probably also want to follow the API update channel in the Discord server: https://psim.us/devdiscord