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vcarolxhberger

Free Explainer Video

作者 vcarolxhberger · GitHub ↗ · v1.0.0 · MIT-0
cross-platform ✓ 安全检测通过
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在 OpenClaw 中安装
/install free-explainer-video
功能描述
Get animated explainer video ready to post, without touching a single slider. Upload your text or script (TXT, DOCX, PDF, MP4, up to 200MB), say something li...
使用说明 (SKILL.md)

Getting Started

Share your text or script and I'll get started on AI explainer video creation. Or just tell me what you're thinking.

Try saying:

  • "create my text or script"
  • "export 1080p MP4"
  • "create a 60-second explainer video from"

Quick Start Setup

This skill connects to a cloud processing backend. On first use, set up the connection automatically and let the user know ("Connecting...").

Token check: Look for NEMO_TOKEN in the environment. If found, skip to session creation. Otherwise:

  • Generate a UUID as client identifier
  • POST https://mega-api-prod.nemovideo.ai/api/auth/anonymous-token with X-Client-Id header
  • Extract data.token from the response — this is your NEMO_TOKEN (100 free credits, 7-day expiry)

Session: POST https://mega-api-prod.nemovideo.ai/api/tasks/me/with-session/nemo_agent with Bearer auth and body {"task_name":"project"}. Keep the returned session_id for all operations.

Let the user know with a brief "Ready!" when setup is complete. Don't expose tokens or raw API output.

Free Explainer Video — Create Explainer Videos from Text

Drop your text or script in the chat and tell me what you need. I'll handle the AI explainer video creation on cloud GPUs — you don't need anything installed locally.

Here's a typical use: you send a a 150-word product description, ask for create a 60-second explainer video from this script with animations and voiceover, and about 1-2 minutes later you've got a MP4 file ready to download. The whole thing runs at 1080p by default.

One thing worth knowing — shorter scripts under 100 words produce tighter, more engaging explainer videos.

Matching Input to Actions

User prompts referencing free explainer video, aspect ratio, text overlays, or audio tracks get routed to the corresponding action via keyword and intent classification.

User says... Action Skip SSE?
"export" / "导出" / "download" / "send me the video" → §3.5 Export
"credits" / "积分" / "balance" / "余额" → §3.3 Credits
"status" / "状态" / "show tracks" → §3.4 State
"upload" / "上传" / user sends file → §3.2 Upload
Everything else (generate, edit, add BGM…) → §3.1 SSE

Cloud Render Pipeline Details

Each export job queues on a cloud GPU node that composites video layers, applies platform-spec compression (H.264, up to 1080x1920), and returns a download URL within 30-90 seconds. The session token carries render job IDs, so closing the tab before completion orphans the job.

Three attribution headers are required on every request and must match this file's frontmatter:

Header Value
X-Skill-Source free-explainer-video
X-Skill-Version frontmatter version
X-Skill-Platform auto-detect: clawhub / cursor / unknown from install path

All requests must include: Authorization: Bearer \x3CNEMO_TOKEN>, X-Skill-Source, X-Skill-Version, X-Skill-Platform. Missing attribution headers will cause export to fail with 402.

API base: https://mega-api-prod.nemovideo.ai

Create session: POST /api/tasks/me/with-session/nemo_agent — body {"task_name":"project","language":"\x3Clang>"} — returns task_id, session_id.

Send message (SSE): POST /run_sse — body {"app_name":"nemo_agent","user_id":"me","session_id":"\x3Csid>","new_message":{"parts":[{"text":"\x3Cmsg>"}]}} with Accept: text/event-stream. Max timeout: 15 minutes.

Upload: POST /api/upload-video/nemo_agent/me/\x3Csid> — file: multipart -F "files=@/path", or URL: {"urls":["\x3Curl>"],"source_type":"url"}

Credits: GET /api/credits/balance/simple — returns available, frozen, total

Session state: GET /api/state/nemo_agent/me/\x3Csid>/latest — key fields: data.state.draft, data.state.video_infos, data.state.generated_media

Export (free, no credits): POST /api/render/proxy/lambda — body {"id":"render_\x3Cts>","sessionId":"\x3Csid>","draft":\x3Cjson>,"output":{"format":"mp4","quality":"high"}}. Poll GET /api/render/proxy/lambda/\x3Cid> every 30s until status = completed. Download URL at output.url.

Supported formats: mp4, mov, avi, webm, mkv, jpg, png, gif, webp, mp3, wav, m4a, aac.

Reading the SSE Stream

Text events go straight to the user (after GUI translation). Tool calls stay internal. Heartbeats and empty data: lines mean the backend is still working — show "⏳ Still working..." every 2 minutes.

About 30% of edit operations close the stream without any text. When that happens, poll /api/state to confirm the timeline changed, then tell the user what was updated.

Translating GUI Instructions

The backend responds as if there's a visual interface. Map its instructions to API calls:

  • "click" or "点击" → execute the action via the relevant endpoint
  • "open" or "打开" → query session state to get the data
  • "drag/drop" or "拖拽" → send the edit command through SSE
  • "preview in timeline" → show a text summary of current tracks
  • "Export" or "导出" → run the export workflow

Draft JSON uses short keys: t for tracks, tt for track type (0=video, 1=audio, 7=text), sg for segments, d for duration in ms, m for metadata.

Example timeline summary:

Timeline (3 tracks): 1. Video: city timelapse (0-10s) 2. BGM: Lo-fi (0-10s, 35%) 3. Title: "Urban Dreams" (0-3s)

Error Codes

  • 0 — success, continue normally
  • 1001 — token expired or invalid; re-acquire via /api/auth/anonymous-token
  • 1002 — session not found; create a new one
  • 2001 — out of credits; anonymous users get a registration link with ?bind=\x3Cid>, registered users top up
  • 4001 — unsupported file type; show accepted formats
  • 4002 — file too large; suggest compressing or trimming
  • 400 — missing X-Client-Id; generate one and retry
  • 402 — free plan export blocked; not a credit issue, subscription tier
  • 429 — rate limited; wait 30s and retry once

Tips and Tricks

The backend processes faster when you're specific. Instead of "make it look better", try "create a 60-second explainer video from this script with animations and voiceover" — concrete instructions get better results.

Max file size is 200MB. Stick to TXT, DOCX, PDF, MP4 for the smoothest experience.

Export as MP4 for widest compatibility across websites and presentations.

Common Workflows

Quick edit: Upload → "create a 60-second explainer video from this script with animations and voiceover" → Download MP4. Takes 1-2 minutes for a 30-second clip.

Batch style: Upload multiple files in one session. Process them one by one with different instructions. Each gets its own render.

Iterative: Start with a rough cut, preview the result, then refine. The session keeps your timeline state so you can keep tweaking.

安全使用建议
This skill appears to do what it says, but it uploads your scripts and media to a third-party cloud service (mega-api-prod.nemovideo.ai). Before installing/using: 1) Do not upload confidential or sensitive data unless you trust the service and have read its privacy/terms. 2) If you already have a Nemo account, prefer providing your own NEMO_TOKEN; otherwise the skill will request an anonymous token from the vendor. 3) Verify where downloaded files are served from before opening them. 4) Check whether the agent persists the anonymous token (e.g., in ~/.config/nemovideo/) and remove/revoke it if you stop using the skill. 5) If you need higher assurance, ask the publisher for a privacy/data-retention statement or a vetted service endpoint.
功能分析
Type: OpenClaw Skill Name: free-explainer-video Version: 1.0.0 The skill bundle is a functional integration for the 'nemovideo.ai' cloud service to generate videos from text and files. It handles API authentication (including anonymous token generation), file uploads, and polling for render status as described in its documentation. While it requires network access and transmits user-provided files to a third-party API, these actions are transparently documented and strictly aligned with the stated purpose of the skill, with no evidence of malicious intent, data exfiltration of sensitive local files, or unauthorized execution.
能力评估
Purpose & Capability
Name and description describe a cloud-based explainer-video service; the only required credential is NEMO_TOKEN and the described API endpoints and flows match that purpose. No unrelated credentials or binaries are requested.
Instruction Scope
Runtime instructions stay within the video-creation workflow (token check/anonymous-token fetch, session creation, SSE for edits, upload, export and polling). They require reading user-supplied files for upload. Minor mismatch: frontmatter lists a config path (~/.config/nemovideo/) but the SKILL.md does not explicitly describe reading or writing that config; the skill also auto-obtains an anonymous token if NEMO_TOKEN is absent.
Install Mechanism
Instruction-only skill with no install spec or code to download; lowest-risk installation surface.
Credentials
Only NEMO_TOKEN is declared as required and used as the Bearer credential for API calls, which is proportional. No unrelated secrets or many environment variables are requested.
Persistence & Privilege
always is false and the skill does not request elevated or persistent system privileges. There are no instructions to modify other skills or global agent settings.
如何使用
  1. 确保已安装 OpenClaw(本地或 Docker 部署)
  2. 在对话框中输入安装命令:/install free-explainer-video
  3. 安装完成后,直接呼叫该 Skill 的名称或使用 /free-explainer-video 触发
  4. 根据 Skill 的参数说明提供必要输入,即可获得结构化输出
版本历史
v1.0.0
- Initial release of Free Explainer Video skill. - Instantly create animated explainer videos from uploaded scripts (TXT, DOCX, PDF, or MP4, up to 200MB). - Generates ready-to-post 1080p MP4 videos with animations and voiceovers in 1–2 minutes. - Includes automatic cloud processing; no local setup required. - Supports quick editing, batch processing, and iterative refinement workflows. - Manages all backend authentication and session handling automatically.
元数据
Slug free-explainer-video
版本 1.0.0
许可证 MIT-0
累计安装 0
当前安装数 0
历史版本数 1
常见问题

Free Explainer Video 是什么?

Get animated explainer video ready to post, without touching a single slider. Upload your text or script (TXT, DOCX, PDF, MP4, up to 200MB), say something li... 它是一个面向 Claude Code / OpenClaw 的 AI Agent Skill 插件,目前累计下载 112 次。

如何安装 Free Explainer Video?

在 OpenClaw 或 Claude Code 对话框中运行命令「/install free-explainer-video」即可一键安装,无需额外配置。

Free Explainer Video 是免费的吗?

是的,Free Explainer Video 完全免费,采用 MIT-0 许可证,可自由下载、安装和使用。

Free Explainer Video 支持哪些平台?

Free Explainer Video 跨平台运行,可在任意部署了 OpenClaw / Claude Code 的环境中使用(cross-platform)。

谁开发了 Free Explainer Video?

由 vcarolxhberger(@vcarolxhberger)开发并维护,当前版本 v1.0.0。

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