# Step 1

> Step 1 by Steplan is an AI + human live chat for cross-border e-commerce (DTC) stores. One script tag adds a chat widget to any site; the AI answers visitors from the merchant's own knowledge base in the visitor's language, and hands the conversation to a human when the visitor asks for a quote or a person, or when the AI isn't confident. Step 1 是面向外贸独立站的 AI + 真人实时客服：一行代码装好，AI 按你的知识库接待海外访客，要报价、要找人时转给你的团队。

Key facts:

- Install: `<script src="https://s1.steplan.io/step1.js?key=pk_live_…" async></script>` before `</body>`. Works with plain HTML, Shopify, WordPress, React / Next.js, Vue / Nuxt and mobile WebViews.
- No access to the site's source code? Paste the line in the site builder's admin (theme editor or "custom code" setting), add it as a Custom HTML tag in Google Tag Manager, or skip installing and share the hosted contact page link (`https://s1.steplan.io/contact/?key=pk_live_…`).
- Widget: ~17 KB gzip, async, Shadow-DOM isolated. Interface in 18 languages, following the visitor's browser.
- AI: DeepSeek (default), OpenAI, or any OpenAI-compatible endpoint, with the merchant's own API key (stored AES-256-GCM encrypted). Without a model it still answers by keyword retrieval from the knowledge base.
- Knowledge base per site: up to 50 FAQs, 20 imported web pages, 20 files or text documents (PDF, DOCX, TXT, MD, CSV, JSON, HTML, up to 10 MB each).
- Handoff: custom trigger phrases, AI-detected need for a human, or low knowledge relevance. The AI stays silent while a human owns the conversation and resumes after 30 minutes of inactivity.
- One account manages up to 20 stores in one inbox. Roles: Owner, Admin, Agent.
- Alerts and integrations: browser notifications, email alerts on handoff, signed webhooks (conversation.created, message.created, conversation.handoff).
- Pricing: free to sign up.

核心卖点（中文）：

- AI 只用你的资料回答，不编答案：回答只来自你上传的 FAQ、产品页和 PDF。资料里没有的，转给真人，不拿不相关的内容凑。
- 拿不准就转真人，报价由你决定：访客要报价、要找人，或者 AI 没有把握时，立即转人工并邮件提醒你。
- 18 种语言接待海外访客：界面自动跟随访客的浏览器语言，AI 用访客的语言回复；你在中文后台管理。
- 一行代码接入任意独立站：Shopify、WordPress、任意 HTML 网站或 Google 跟踪代码管理器都能装；不改网站，也能分享聊天链接。
- 一个账号管理 20 个独立站：所有站点共用一个收件箱，哪个站有访客在等，一眼看清。
- 用自己的 AI 模型，成本看得见：接入 DeepSeek、OpenAI 或兼容接口，每条回复的 token 用量都有记录；不接模型也能按知识库作答。

## Docs

- [产品说明（图文版）](https://s1.steplan.io/landing/docs/): Full illustrated product guide with screenshots of the widget and the console
- [产品说明（Markdown）](https://s1.steplan.io/landing/docs/product.md): Same guide as plain Markdown, easiest for AI assistants to read
- [llms-full.txt](https://s1.steplan.io/llms-full.txt): The complete guide as one plain-text file
- [帮助中心](https://s1.steplan.io/help/): Setup and troubleshooting

## Product

- [官网 Landing page](https://s1.steplan.io/): Overview
- [演示网站 Demo store](https://s1.steplan.io/demo): A sample store with Step 1 installed
- [免费注册 Sign up](https://s1.steplan.io/login?mode=signup): Create a workspace

## Optional

- Contact: support@steplan.io