Access Notion, Feishu, Google Sheets and more through a unified REST API. Build faster with a single integration point for all your data platforms.
$ curl -X GET https://api.opendb.dev/v1/databases/db_123/items
-H "Authorization: Bearer app_id:app_secret"
-H "X-Data-Source: notion_workspace"Everything you need to unify your data access across platforms.
One REST API for Notion, Feishu, Google Sheets and more. Integrate once, access all your data sources through a single endpoint.
Data stays synchronized across all connected platforms. Read and write through one consistent interface with automatic conflict resolution.
Send alerts via Email, Bark, DingTalk, Feishu, Slack, Telegram, Discord, Webhook and more. Flexible routing and template support.
Clean RESTful API design with comprehensive documentation, SDKs, and code examples. Start building in minutes, not days.
Get started in three simple steps.
Link your Notion, Feishu, or Google account through OAuth or manual token setup. All credentials are encrypted and stored securely.
Create an app and select your data sources to generate API credentials. Set up rate limits, notifications, and access controls.
Use the unified REST API to read, write, and manage your data across all platforms. One endpoint, all your data.
Connect to the tools you already use.
Databases, Pages, Blocks
Bitable, Docs, Pages
Spreadsheets, Data
Open Database is built for anyone who needs unified data access.
Integrate multiple data platforms into your application with a single API. Focus on building features, not managing integrations.
Centralize data access across teams and tools. Enterprise-grade security with encrypted credentials and granular access control.
Aggregate data from Notion, Feishu, and Google Sheets into your analysis pipeline. Consistent schemas across all sources.
Ship faster with pre-built integrations. No need to build and maintain separate connectors for each data platform.
Enterprise-grade features for reliable, scalable data access.
App-based authentication with API keys, rate limiting, and AES-256 encrypted token storage for all your credentials.
Connect data sources in minutes via OAuth or manual token. Zero-config for supported platforms with guided setup.
Everything you need to know about Open Database.
Open Database is a unified data API platform that lets you access Notion, Feishu, Google Sheets, and more through a single REST API. Instead of integrating each platform separately, you connect once and access all your data through a consistent interface.
Sign up for a free account, connect your first data source (Notion, Feishu, or Google Sheets), create an app to generate API credentials, and start making API calls. The whole process takes less than 5 minutes.
Yes. All credentials and tokens are encrypted with AES-256-GCM before storage. API access requires App ID and Secret authentication. Rate limiting protects against abuse. We never store or cache your actual data.
Currently we support Notion (databases, pages, blocks), Feishu/Lark (Bitable, docs), Google Sheets, and GitHub-based file storage. More integrations are being added regularly.
Yes, Open Database offers a free tier that includes basic API access with rate limits. You can start building immediately without any payment.
Each app has configurable rate limits at minute, day, and month granularity. You can set limits per app to control costs and usage. Rate limit headers are included in every API response.
Start building with Open Database today. Reliable, scalable, and ready for production.