ADoor vs Firebase
Firebase gives app developers Cloud Firestore, Authentication, Hosting, Cloud Functions and messaging, secured with Security Rules. ADoor is a data account for a team's records, set up from a chat with an assistant like ChatGPT, where every person, app and assistant gets its own access.
Where ADoor stands out
Permissions without writing rules
Firestore access is set in Security Rules that you write and deploy. In ADoor you choose what each connection can reach, down to a list, specific fields, or just the entries that match a value you choose, and each assistant, script and job gets its own access, capped at the person who connected it.
Hosted MCP with a sign-in
Assistants reach ADoor at one web address and sign in with OAuth, so there's nothing to install. The Firebase MCP server runs locally with Node.js, using your Firebase CLI credentials.
SQL and history
ADoor runs standard Postgres SQL and keeps a history of changes, with who made each one and the before and after. Firestore stores documents in collections.
The products
Firebase
Firebase is Google's platform for building web and mobile apps.
- Data
- Cloud Firestore documents, Realtime Database and Firebase SQL Connect
- Access
- Security Rules for Firestore, Storage and Realtime Database
- Assistants
- A local MCP server for Claude Code, Cursor, VS Code Copilot and others
- Plans
- Spark is free, with 1 GiB of Firestore storage and 50,000 reads a day. Blaze is pay as you go.
- Backups
- Backups and backup schedules
- Queries
- Firestore queries and aggregations
- Also includes
- Yes
- File storage
- Cloud Storage for Firebase
ADoor
ADoor is your data account. You keep lists and tables in a workspace you own, personal or team: a reading list, an incident log, a list of customers. Describe what you want to keep track of and it's set up for you, with real Postgres underneath. Every person, app, assistant, device and job gets its own access.
- Assistants
- ChatGPT, Claude, Grok and Cursor connect through MCP with a sign-in.
- Apps and scripts
- An HTTP API with keys, running the same actions assistants use
- Access
- Per space, list or field, or just the entries where a field equals a value you choose. Reading, adding, editing and deleting entries, and changing a list's fields, are separate permissions. An assistant never gets more than the person who connected it.
- Approvals
- Agents ask for more access and you approve or deny. A new device signs in only after you approve it and choose its access.
- CI jobs
- GitHub Actions signs in with short-lived access, 15 minutes by default and up to 30 days, with no stored secret.
- Revoking
- Takes effect on the next request. What was already saved stays.
- History
- A history of changes, with who made each one and the before and after
- Underneath
- Standard Postgres
- Plans
- Free for 3 tables and 100 rows. Pro is $10 a month per workspace, with 1 GB of storage.
Pricing
| Topic | ADoor | Firebase |
|---|---|---|
| Free plan | 3 tables and 100 rows, with a few MB of storage | Spark: 1 GiB stored and 50,000 reads a day in Firestore |
| Paid plans | Pro: $10 a month per workspace, 1 GB of storage, no per-GB charges | Blaze, pay as you go |
Latency
| Topic | ADoor | Firebase |
|---|---|---|
| Published figure | Not published | Not published |
Connectors and API
| Topic | ADoor | Firebase |
|---|---|---|
| MCP server | Hosted, with OAuth sign-in. ChatGPT, Claude, Grok and Cursor. | Local server run with npx firebase-tools, using your Firebase CLI sign-in |
| HTTP API | HTTP API with keys: read, add, edit, delete, and change lists and fields | Firestore REST API |
| SQL access | Standard Postgres SQL through MCP and the API, within your access | Firebase SQL Connect, on managed PostgreSQL |
| Access per agent | Its own access per assistant, app, device and job, down to specific fields, or just the entries that match a value you choose | Your CLI credentials, with tool groups you choose |
| OAuth or tokens | OAuth for assistants, keys for apps, short-lived sign-in for GitHub Actions | CLI sign-in or Application Default Credentials |
| SDKs | Coming soon | Yes, including JavaScript |
| Webhooks | No | Cloud Functions triggers on Firestore changes |
| Import and export | Export to CSV or JSON. Import by attaching CSV or JSON in an assistant. | Managed export and import |
ADoor has no sync connectors and no file storage.
Which one should you use?
Use Firebase when
you're building a web or mobile app and want its backend from one provider.
- App users and sign-in. Firebase Authentication handles your users.
- Hosting, functions and messaging. Deploy the app and send push notifications.
- More of Google Cloud. The Blaze plan opens more services and higher usage.
Use ADoor when
you need shared data your company and its agents work from, with access per person and agent, and no Security Rules to write and deploy.
Technical
- A production backend writes order events with an add-only key. There are no rules files to deploy.
- Each agent gets its own access, so a support agent can read orders and a billing agent can edit refunds, and neither can do both.
Personal
- Your wine cellar, with vintages, where each bottle sits and when to drink it. Only you see it until you invite someone.
- Plant care for the whole flat. Your flatmate adds waterings from her phone and sees only that list.
Team
- An incident log across engineering and support, with a history of changes, showing who made each one and the before and after.
- A new laptop signs in only after you approve it and choose what it can reach.
Business
- A client list for your freelance work where only you see the Rate field, set from the app with no rules to test.
- A vendor gets add-only access to one list. Revoke it, and what it added stays.
Questions people ask
Can I build my app's backend on ADoor?
Login with ADoor is coming soon, for signing in your app's users. ADoor has no hosting. Use the ADoor API from your own servers and tools.
Does ADoor sync with Firestore?
No. ADoor doesn't sync with other services.
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Checked October 20, 2026. Sources: Firebase MCP server, Firestore Security Rules, Firebase pricing, Firestore REST API, Firestore triggers.