> ## Documentation Index
> Fetch the complete documentation index at: https://docs.summerengine.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Technical reference

> Generated reference for Summer: every MCP tool, the public Summer Platform HTTP API and the in-game Summer GDScript API. Built from the source code, never written by hand.

The guides explain how to make and ship a game. This reference lists every tool, endpoint and method, with exact names and inputs. It is generated from Summer's source code, and a docs check fails when a page no longer matches its source.

<CardGroup cols={3}>
  <Card title="MCP tools" icon="wrench" href="/mcp/tools-reference">
    175 tools your agent can call: build, create assets, run and test, publish, grow.
  </Card>

  <Card title="HTTP API" icon="globe" href="/api-reference/http/overview">
    65 operations on api.summer.games: creator management, analytics, store and account.
  </Card>

  <Card title="GDScript API" icon="code" href="/api-reference/gdscript/overview">
    The `Summer` singleton: `Summer.client` in the player's game, `Summer.authority` on your server.
  </Card>
</CardGroup>

## Where each page comes from

| Reference | Source of truth | Version |
| - | - | - |
| MCP tools (local) | `summer-engine` npm package: its MCP server's tool list, `library/tools/*/resource.yaml`, `registry/generated/index.json` | `3.3.0` |
| MCP tools (hosted) | Hosted Summer Engine MCP, `src/lib/mcp/hosted` in publicsummerengine | `8c4351ee30` |
| HTTP API | `api/management/openapi.yaml`, `api/analytics/openapi.yaml`, `api/player/openapi.yaml` in summer-platform | `ff4f240996` |
| GDScript API | `modules/1summer_engine/doc_classes/*.xml`, `modules/summer_sdk_core/doc_classes/*.xml`, `modules/summer_multiplayer/doc_classes/SummerMultiplayerService.xml` in SummerEngine | `2c223081cd` |

Agents can read all of it at [llms.txt](https://docs.summerengine.com/llms.txt) and [llms-full.txt](https://docs.summerengine.com/llms-full.txt).


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