# Series AI

**Canonical:** https://apis.io/providers/series-ai/  
**Website:** https://run.world  
**APIs profiled:** 1

Series AI (Series Entertainment, Inc.) is an a16z-backed, AI-native game company behind RUN.world, a platform to create, publish, play, and monetize HTML5 games. Series ships a real first-party developer surface: the RUN.world SDK (@series-inc/rundot-game-sdk) exposes a single RundotGameAPI for player storage, profiles, leaderboards, ad monetization, purchases, entitlements, multiplayer, server-authoritative simulation, and generative AI (image, audio, video, and text), while the rundot CLI scaffolds, deploys, versions, and operates live titles. StowKit asset tooling, a Three.js-based 3D engine with ECS, the Syncplay deterministic-multiplayer core, and a community workshop of game starters round out the toolchain. Founded by veterans from Riot, Epic, Blizzard, Pocket Gems, and Telltale.

## Kin Score — 28.1 / 100 (thin)

Scored 2026-08-19 under rubric 0.12.0. Trend: flat (+0.9 from 27.2).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 28.9 |
| Developer Ergonomics | 73.2 |
| Commercial Clarity | 10.5 |
| Access Clarity | 10.5 |

## Agent readiness — 13.0 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Open access — onboarding: open, pricing: unknown, trial: no (confidence: medium).

## APIs (1)

- **RUN.world SDK** — Client-side JavaScript/TypeScript SDK (@series-inc/rundot-game-sdk) that gives an HTML5 game access to RUN.world platform services through a single RundotGameAPI import: storage...

## Security (3)

- **Series Ai Authentication** — 0 schemes
- **Series Ai Domain Security** — TLSv1.3 · HSTS · DMARC
- **Series Ai Vulnerability Disclosure** — disclosure policy published

## Tags

Company, Games, Game Development, Artificial Intelligence, Generative AI, Game Engine, SDK, Developer Tools, Multiplayer, HTML5

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/series-ai/). Scores are computed from the provider's own public artifacts under a published rubric.