# Share your data with every agent, every app and your whole team. Safely. One storage that ChatGPT, Claude, Grok, Cursor and your apps all read and write. - One storage across everything: ChatGPT, Claude, Grok, Cursor, your apps and your team. - Let your agents query it with SQL. - Undo a change, even a dropped table. Recently deleted keeps it for 30 days. [Sign up](https://app.adoor.halmoslabs.com/signup) ## Shared like a doc. - **One list:** Share one list with one person. - **Whole space:** Or a whole space with your team. - **Down to a field:** Limit anyone to a table, some fields or matching entries. - **Revoke in one step:** Each person, app and assistant has their own access, and you can take it back. ## Let your agents query it with SQL. Underneath is real Postgres, managed for you. Ask in plain words, or send SQL through the API or MCP. Export any list to CSV or JSON anytime. ## Each gets only the access you give. ChatGPT, Claude, Grok and Cursor connect through MCP sign-in, with no API keys. You approve each one, choose what it can reach and revoke it in one step. An assistant never gets more than the person who connected it. ## Undone like Cmd‑Z. Every insert, update and delete records who made it and what it replaced. Undo a change, even a bulk edit, a type change or a dropped table. Dropped tables and fields stay in Recently deleted for 30 days. Undo stops if someone edited the same rows later. History is capped by size, so changes older than 30 days are trimmed first. [How undo, history and revoke work](https://adoor.halmoslabs.com/undo/) ## Questions people ask ### Can ChatGPT and Claude work together? Yes, through the same data. Connect both to one ADoor space over MCP, and a list ChatGPT starts is there when you open Claude, each with its own access. [How to connect ChatGPT and Claude](https://adoor.halmoslabs.com/use/connect-chatgpt-and-claude/) ### Won’t agents wipe my data? Every change is recorded with who made it and what it replaced, and you can undo it, including a type change and a large write. Undo stops if someone edited the same rows later. History is capped by size, so the oldest changes go first. Even a dropped table can be restored from Recently deleted for 30 days. Nightly encrypted backups are kept for 30 days, out of reach of agent tokens. [How undo works](https://adoor.halmoslabs.com/undo/) ### Who can see my data, and how do I delete or export it? You, and the people, apps and assistants you connect, each within the access you approved. We don’t train on your data. There’s no admin console; staff access is audited and time-limited. What an assistant reads also goes to the company that runs it. Export any list to CSV or JSON at any time, and email support@halmoslabs.com to delete your account. ### Isn’t this just Supabase MCP? No. Supabase MCP is a developer tool with your developer permissions, and Supabase advises against giving it to end users. ADoor is your own data account, shared by your assistants and apps, each with access you can limit and revoke. [ADoor vs Supabase MCP](https://adoor.halmoslabs.com/compare/supabase-mcp/) ### Isn’t this another memory startup? No. ADoor doesn’t pull memories out of your chats. Your assistants read and write tables when you ask, and you can see, query and export every row. [When a Markdown file is enough](https://adoor.halmoslabs.com/compare/markdown-file/) ### Isn’t MCP dead? Can’t I just use a CLI? A CLI is great where there’s a terminal, but ChatGPT and Claude on the web or your phone can’t run one. They can connect to a remote MCP server with a sign-in. ADoor has both: MCP for assistants, and an HTTP API with keys for scripts. ### How much does ADoor cost? A free workspace holds 1 space with 3 tables and 100 rows, and 5 MB of storage, with no card needed. Pro is $10 a month per workspace, in USD before tax, with 1 GB of storage, no row, table or space caps and no per-GB charges. ### What happens to my data if an app shuts down? If the app kept it in your ADoor space, nothing. The tables stay in your account, and any assistant you connect can still read them. [What happens when an app goes away](https://adoor.halmoslabs.com/apps-come-and-go/) ### Is ADoor an MCP server? Yes. ADoor runs a hosted MCP server at https://app.adoor.halmoslabs.com/mcp. ChatGPT, Claude, Grok and Cursor connect to it with an OAuth sign-in, so you never paste a key into a chat. You approve each assistant, and you can revoke it in one step. ### Is ADoor a database? Underneath, yes. Your lists and tables live in real Postgres that ADoor runs for you. You can ask an assistant in plain words, or send SQL through the API or MCP, and you never set up or tune a server. ### Who makes ADoor? ADoor is made by Halmos Labs, Inc., a United States company. You can reach us at support@halmoslabs.com. ## Start free. Then $10 a month. A free workspace holds 1 space with 3 tables and 100 rows, and 5 MB of storage. No card needed. Pro is $10 a month per workspace, in USD before tax, with 1 GB of storage, no row, table or space caps and no per-GB charges. Docs: https://adoor.halmoslabs.com/docs/index.md. Comparisons: https://adoor.halmoslabs.com/compare/index.md. Use cases: https://adoor.halmoslabs.com/use/index.md.