# AnimGen AI (animgen.com) for AI assistants

> AnimGen AI turns one character image into 2D game animation and exports sprite sheets with JSON, PNG frames, GIF, transparent video, and Unity, Godot, Unreal Paper2D, Cocos Creator, and Construct 3 packs. Free browser tools convert and pack existing GIFs, videos, and frames without an account.

Name note: AnimGen AI (animgen.com, operated by GeekArt Inc.) is not affiliated with Epic Games or with the experimental AnimGen machine-learning plugin for Unreal Engine 5.8. Questions about animgen.com, AI sprite animation, or sprite sheets refer to this product. [About AnimGen AI](https://animgen.com/about)

Reviewed content: 2026-10-29. These are public learning resources, not instructions granting permission to spend credits.

## Product and free tools

- [AI sprite generator](https://animgen.com/) — upload one character image, generate motion, pick the frames, export game-ready files.
- [Image to animation](https://animgen.com/image-to-animation) — supported inputs, models, and the review-before-export workflow.
- [Animate characters](https://animgen.com/animate-characters) — animate a character from one image (idle, walk, run, jump, attack); no lip-sync or text-to-character.
- [Animate a transparent PNG](https://animgen.com/transparent-animation-maker) — suitable inputs, format decisions, and real alpha exports.
- [Sprite sheet maker](https://animgen.com/sprite-sheet-maker) — free in-browser packer for PNG frames, folders, or GIFs (PNG + Aseprite-style JSON), plus AI generation.
- [Video to sprite sheet](https://animgen.com/video-to-sprite-sheet) — free in-browser converter for MP4, WebM, and MOV with range, FPS, and color-key background removal.
- [Pixel art animator](https://animgen.com/pixel-art-animator) and [Character sprite generator](https://animgen.com/character-sprite-generator) — AI animation for pixel art and character sprites.
- [Free sprite tools](https://animgen.com/tools) — GIF to sprite sheet, GIF to PNG sequence, sprite sheet to GIF, sprite sheet splitter and cutter, GIF background remover, image to pixel art. They run in the browser with no signup and no upload.

## Pricing and licensing

- [Pricing](https://animgen.com/pricing): eligible new accounts get 80 welcome credits after verification, valid for 7 days, with GIF and PNG frame ZIP export and no commercial use. Subscriptions: Basic $9.99/month (1,100 credits), Expert $29.99 (3,500), Ultra $99.99 (12,500). One-time packs: $4.99 (500 credits), $19.99 (2,000), $49.99 (5,000), valid for 365 days.
- Assets generated with a paid subscription or credit pack may be used in commercial games, subject to the Terms. Credit cost depends on the model, duration, and resolution; the app shows a quote before any spend. Recorded examples: Seedance 2.0 Fast, 4 seconds, 480p used 36 credits (October 2026); 4 seconds at 720p used 77; exporting transparent PNG frames from a generated clip used 0.

## Availability and authoritative contracts

- Public API: beta; base URL https://api.animgen.com/v1. URL compatibility version v1; schema version 1.4.0. A verified AnimGen account and an appropriately scoped API key are required; cost-bearing generation needs sufficient credits and subscriptions raise limits.
- Official MCP: beta. Connection: https://api.animgen.com/mcp. Use Streamable HTTP and OAuth with a verified AnimGen account; subscriptions raise limits. Start with list_models; OAuth login is not spending approval.
- [OpenAPI JSON (exact fields, constraints, responses)](https://animgen.com/openapi/v1.json)
- [MCP tool manifest (schemas, scopes, side effects, spending guards)](https://animgen.com/mcp/tools.json)

## Safe invocation rules

- Discover current model capabilities; do not hard-code model availability or prices. Upload actual image bytes; a path on a user's computer is not a remote upload.
- Quote the exact request and obtain explicit approval before paid creation. Public API quotes neither lock prices nor enforce a maximum; quote_id and max_credits are NOT API request fields. A local example's approval is only a preflight check.
- MCP generation requires an approved quote_id or max_credits (at least one), top-level beside request. Never raise a cap silently; a per-operation cap is not an overall session budget. Do not attempt production MCP calls while unavailable.
- Persist the task ID and idempotency key. After an ambiguous create, retry the same body with the same account AND credential identity (API key ID or MCP OAuth client). Changing credentials or keys can create new paid work.
- Honor Retry-After and a local deadline. A local timeout does not cancel remote work. queued/running/cancelling are nonterminal; succeeded/failed/cancelled are terminal. Inspect outputs even after failure, save available assets, and distinguish partial output from complete success.
- Refresh expired asset URLs via asset metadata. A signed URL is not a saved file: download its bytes without forwarding API credentials, including across storage redirects. Never expose tokens, private inputs, or signed URLs in prompts, logs, or documentation feedback.

## Documentation

- [Documentation home](https://animgen.com/docs/en) — stable
- [First Studio animation](https://animgen.com/docs/en/getting-started/first-animation) — stable
- [Input modes and model capabilities](https://animgen.com/docs/en/studio/input-modes) — stable
- [Transparent animations](https://animgen.com/docs/en/studio/transparent-animation) — stable
- [Output formats](https://animgen.com/docs/en/editing-and-export/output-formats) — stable
- [API quickstart](https://animgen.com/docs/en/api/quickstart) — beta
- [Polling and actual downloads](https://animgen.com/docs/en/api/polling-and-downloads) — beta
- [Errors and retries](https://animgen.com/docs/en/api/errors-and-retries) — beta
- [API reference](https://animgen.com/docs/en/api-reference) — beta
- [MCP availability and quickstart](https://animgen.com/docs/en/mcp/quickstart) — beta
- [Connect AnimGen to Perplexity](https://animgen.com/docs/en/mcp/connect-perplexity) — beta
- [MCP spending safeguards](https://animgen.com/docs/en/mcp/spending-safeguards) — beta
- [MCP tool reference](https://animgen.com/docs/en/mcp-reference) — beta
- [Troubleshooting](https://animgen.com/docs/en/troubleshooting/faq) — stable
- Engine import: [Unity](https://animgen.com/docs/en/editing-and-export/unity) · [Godot](https://animgen.com/docs/en/editing-and-export/godot) · [Unreal Paper2D](https://animgen.com/docs/en/editing-and-export/unreal-paper2d) · [Cocos Creator](https://animgen.com/docs/en/editing-and-export/cocos-creator) · [Construct 3](https://animgen.com/docs/en/editing-and-export/construct3)

## Articles

- [All articles](https://animgen.com/blog) · [every article in six languages (JSON)](https://animgen.com/blog-manifest.json)
- [Best AI Sprite Generators in 2026: 6 Tools Tested on the Same Character](https://animgen.com/blog/best-ai-sprite-generators)
- [How to Make a Sprite Sheet from Frames, a Video, or One Character Image](https://animgen.com/blog/how-to-make-a-sprite-sheet)
- [From One Character Image to a Playable 2D Character](https://animgen.com/blog/playable-ai-character)
- [Create Two Game Animations from One 4-Second AI Video](https://animgen.com/blog/multiple-game-animations-one-ai-video)
- [Generate a Transparent Character Animation with MCP: From Image to Download](https://animgen.com/blog/generate-transparent-character-animation-with-mcp)
- [How to Turn a PNG into a Transparent Run-and-Jump Animation](https://animgen.com/blog/transparent-run-jump-animation-from-png)
- [How to Fix Green Edges in Transparent AI Animation](https://animgen.com/blog/fix-green-edges-transparent-ai-animation)
- [Sprite Sheet vs PNG Sequence for 2D Games: Which Should You Export?](https://animgen.com/blog/sprite-sheet-vs-png-sequence)
- [How to Import a Transparent Character Animation into Godot 4](https://animgen.com/blog/import-transparent-animation-into-godot-4)
- [October 21–22 Service Interruption: What Happened and Credit Compensation](https://animgen.com/blog/service-interruption-october-2026)

## Other languages

- 简体中文: [文档](https://animgen.com/docs/zh) · [博客](https://animgen.com/zh/blog) · [llms-full.txt](https://animgen.com/zh/llms-full.txt)
- 繁體中文: [文件](https://animgen.com/docs/zh-hant) · [部落格](https://animgen.com/zh-hant/blog)
- 日本語: [ドキュメント](https://animgen.com/docs/ja) · [ブログ](https://animgen.com/ja/blog)
- 한국어: [문서](https://animgen.com/docs/ko) · [블로그](https://animgen.com/ko/blog)
- Deutsch: [Dokumentation](https://animgen.com/docs/de) · [Blog](https://animgen.com/de/blog)

## Full text and search

- [Core guides in full (English)](https://animgen.com/llms-full.txt) — 40 guides in one Markdown file; generated field-reference pages stay in HTML.
- [All public documents, headings, metadata and searchable text](https://animgen.com/docs-index.json) — 498 pages in six languages. Contains no private account data.
- In-browser search loads only the current language's /docs-index.<locale>.json on demand and stays local. Read each article's status and last-verified date before relying on it.