GM / 01
Game Master turns
Narration, rulings, world reactions, and structured state proposals grounded in the current scene.
- Scene-aware context
- Structured responses
- Rules-engine handoff
Built for the next generation of games
The API layer for AI-powered play.
Game-aware AI operations for platforms, studios, and engines. One integration for narrative, characters, content, and media—with metered usage built in.
- Game-native operations
- Provider-flexible
- Usage-metered
REQUEST
POST /v1/game/turns
{
"scene": "ruined_observatory"
,
"actor": "keeper_ves"
,
"intent": "negotiate"
} state understood
200342 ms
Keeper Ves lowers the astrolabe, but does not step aside.
The platform
Generic models speak.
GameMaster understands play.
Language models are powerful, but games need more than a chat box. GameMaster API turns model capability into predictable, game-shaped operations your engine can call and your team can measure.
Send the relevant state and intent. Receive structured output your rules engine can validate, apply, reject, or revise.
01Integrate once
A stable application layer over evolving model and media providers.
02Keep authority
Your engine owns the rules. AI proposes game-aware outcomes.
03Measure usage
Track cost by project, operation, and provider from one account.
Operation families
One surface for the AI behind your game.
Planned capabilities are grouped around what games need to do—not which underlying model happens to do it.
NPC / 02
Actor decisions
Character intent, dialogue, reactions, and memory shaped by identity and game state.
- Character constraints
- Contextual intent
- Memory-aware
GEN / 03
Content generation
Game-ready concepts and assets for encounters, locations, items, quests, and more.
- Schema-driven
- Batch capable
- Engine portable
MEDIA / 04
Images & voice
Unified media operations for character art, scene imagery, narration, and performance.
- Provider routing
- Asset lifecycle
- Consistent metering
Designed as infrastructure
Your game stays
in command.
GameMaster API is an independent service between your game platform and the fast-moving AI provider landscape. It handles orchestration, normalization, usage, and delivery. Your application keeps control of identity, state, rules, and player experience.
YOUR SYSTEMGame platformState · Rules · Players
structured request
ORCHESTRATIONGameMaster APIContext · Routing · Metering
provider operation
Language models
Image models
Voice models
Simple by design
A key your players
can keep in play.
Fund a balance, issue scoped API keys, and extend AI-powered play without changing the game subscription beneath it.
+ Prepaid usage balance+ Project-level limits+ Transparent operation history
Developer preview
Build worlds.
We’ll handle the intelligence layer.
Tell us what you’re building and where AI fits into the experience. Preview access is reviewed individually while the platform is in development.
Send your project detailsWe’ll reply by email with availability and next steps.