Brand Idea

Aggregate capabilities.Deliver stable value.

Youidian brings payments, hosted login, entitlements, and operational review into one integration point, then exposes them through SDK and HTTP APIs.

View SDK Docs

Youidian

Developer Platform

Connect multiple capabilities with one code path

Capability aggregation

Combine payments, login, SMS, users, and entitlements into common service blocks.

Unified console

One app model carries configuration, hosted flows, and operational state.

External output

Expose stable, reliable, extensible capabilities through SDK, HTTP APIs, and Webhooks.

Let Youidian handle the integration loop

Configure payments, login, products, entitlements, and operational review around one app instead of maintaining separate infrastructure.

Payments and Hosted Checkout

Support Stripe, Alipay, WeChat Pay, PayPal, and more through hosted checkout or direct APIs.

Hosted Login and Identity Return

Add Google, Apple, WeChat, and phone login while returning verified identity results to your app.

SDK and HTTP Integration

Use the same app credentials with frontend/backend SDKs or direct HTTP APIs as your integration grows.

Signed Callbacks and Verification

Orders, login results, and Webhooks keep signatures, tokens, and state checks for reliable review.

App-Centric Model

Configure providers, products, entitlements, and hosted themes independently for each app.

Developer-Friendly Tools

Integration docs, simulation, hosted pages, and launch checks help small teams finish the main path faster.

SDK quick start

youidian-sdk

import { createClient } from "youidian-sdk"

const uyd = createClient({
  appId: "your_app_id",
  secret: "your_secret_key",
})

await uyd.pay.create(order)
await uyd.login.start(session)
await uyd.entitlements.verify(user)

SDK quick start

Connect multiple capabilities with one code path

Create orders, start login, verify entitlements, and return results around one app.

Payment

User

Entitlement

独立サイトに接続しますか？

Create an app, configure payment and login providers, then integrate through SDK or HTTP APIs.

開発者コンソールを開く

import { createClient } from "youidian-sdk" const uyd = createClient({ appId: "your_app_id", secret: "your_secret_key", }) await uyd.pay.create(order) await uyd.login.start(session) await uyd.entitlements.verify(user)