Alephgrid
Overview
Description from the maker (original English)
Read-only MCP access to Alephgrid workbooks: schema cards, reads, SQL, saved queries, receipts.
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs in the cloud
- Transport: Streamable HTTP
- Category: Databases & datasets
- You need to fill in: Authorization
Install
Pick the AI app you use, then copy the settings.
Passed 2/2 checks · What you ask goes through the maker’s server ({alephgrid_host})
First: which AI do you use?
Pick your app and the steps appear below.
Works with Claude, with some setup first
You need a Alephgrid key (sign up on the maker’s site, may cost money) · The address has {…} parts you must replace with your own first · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1
Sign up and create a Alephgrid key
Open the maker’s site, sign up and create an API key for the next step. It may cost money.
Open Claude’s Connectors page
CustomizeConnectors
Click “+ Add” → “Add custom connector” and fill in these 2 fields
Copy each value into the field with the same name in Claude, then click Continue
Name · NameAlephgridRemote MCP server URL · Addresshttps://{alephgrid_host}/mcpUnder Request headers, add this name and value
Header nameAuthorizationValueBearer <paste your key here>Paste the key only into the app’s field, never into a chat or to anyone
Leave Authentication as Claude detected it, then click Add
Turn it on in a chat
+ConnectorsAlephgrid
Try it
Use Alephgrid and tell me what you can do for me, then show me one thing✓ If Claude says it is using Alephgrid or shows a Alephgrid tool in the answer, you are connected
Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version
ChatGPT cannot connect Alephgrid yet
Alephgrid needs your own key to connect, but OpenAI’s help page only describes OAuth sign-in; there is no key option we could verify
What you can do instead
A · Use an app that can connect Alephgrid
- You need a Alephgrid key (sign up on the maker’s site, may cost money) · The address has {…} parts you must replace with your own first · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1
- You need a Alephgrid key (sign up on the maker’s site, may cost money) · The address has {…} parts you must replace with your own first
- You need a Alephgrid key (sign up on the maker’s site, may cost money) · The address has {…} parts you must replace with your own first
- You need a Alephgrid key (sign up on the maker’s site, may cost money) · The address has {…} parts you must replace with your own first
B · Others in Databases & datasets that work with ChatGPT
Picked from the most used in the same category, only ones that connect by address with no key
- Supabase✓ ChatGPT
- Appwrite MCP✓ ChatGPT
- Pg Aiguide✓ ChatGPT
Works with Claude Code, with some setup first
You need a Alephgrid key (sign up on the maker’s site, may cost money) · The address has {…} parts you must replace with your own first
Sign up and create a Alephgrid key
Open the maker’s site, sign up and create an API key for the next step. It may cost money.
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Paste this command and press Enter
claude mcp add --transport http alephgrid 'https://{alephgrid_host}/mcp' --header 'Authorization: Bearer {agent_token}'Replace “your-value” with your key before pressing Enter
Paste the key only into the app’s field, never into a chat or to anyone
Type /mcp in Claude Code
You should see Alephgrid listed as connected
Try it
Use Alephgrid and tell me what you can do for me, then show me one thing✓ If Claude Code says it is using Alephgrid or shows a Alephgrid tool in the answer, you are connected
Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with Cursor, with some setup first
You need a Alephgrid key (sign up on the maker’s site, may cost money) · The address has {…} parts you must replace with your own first
Sign up and create a Alephgrid key
Open the maker’s site, sign up and create an API key for the next step. It may cost money.
Open Cursor’s MCP settings file
~/.cursor/mcp.json
Paste these settings, fill in the empty values and save
{ "mcpServers": { "alephgrid": { "url": "https://{alephgrid_host}/mcp", "headers": { "Authorization": "Bearer {agent_token}" } } } }Fill in your key
In the Alephgrid settings, Authorization is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Open the AI chat in Cursor in Agent mode
Try it
Use Alephgrid and tell me what you can do for me, then show me one thing✓ If Cursor says it is using Alephgrid or shows a Alephgrid tool in the answer, you are connected
Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with VS Code, with some setup first
You need a Alephgrid key (sign up on the maker’s site, may cost money) · The address has {…} parts you must replace with your own first
Sign up and create a Alephgrid key
Open the maker’s site, sign up and create an API key for the next step. It may cost money.
Open VS Code’s MCP settings file
MCP: Open User Configuration
Paste these settings, fill in the empty values and save
{ "servers": { "alephgrid": { "type": "http", "url": "https://{alephgrid_host}/mcp", "headers": { "Authorization": "Bearer {agent_token}" } } } }Fill in your key
In the Alephgrid settings, Authorization is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Open the AI chat in VS Code in Agent mode
Try it
Use Alephgrid and tell me what you can do for me, then show me one thing✓ If VS Code says it is using Alephgrid or shows a Alephgrid tool in the answer, you are connected
Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.
Address for apps that connect over the web
https://{alephgrid_host}/mcpJSON settings are under “For developers” below
For developers: Terminal commands and JSON settings
Over the web
Claude Code
claude mcp add --transport http alephgrid 'https://{alephgrid_host}/mcp' --header 'Authorization: Bearer {agent_token}'Cursor (~/.cursor/mcp.json)
{
"mcpServers": {
"alephgrid": {
"url": "https://{alephgrid_host}/mcp",
"headers": {
"Authorization": "Bearer {agent_token}"
}
}
}
}VS Code (mcp.json)
{
"servers": {
"alephgrid": {
"type": "http",
"url": "https://{alephgrid_host}/mcp",
"headers": {
"Authorization": "Bearer {agent_token}"
}
}
}
}Values you fill in
Authorizationsecret required HTTP header
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
At a glance
- Verified domain
- ✓ alephgrid.dev
- Connection
- Runs in the cloud
- Transport
- streamable-http
- Latest versioni
- 0.1.0
- Categoryi
- Databases & datasets
- Published to registryi
- Nov 2, 2026
- Code last changedi
- Nov 9, 2026
- Maker
- alephgrid
- Website
- alephgrid.dev
- Registry status
- Active
Which apps can use it
Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.
Connect over the internet in
ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast
Related guides
What it can do
The address needs your own values, so we cannot read the tool list for you.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 11, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified against the domain alephgrid.dev (the registry checks domain ownership)
- ✓ Pass
Still maintained
Code last changed 2 days ago
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- – Not applicable
Endpoint responds
The address needs your own account values, so we cannot check it for you
- – Not applicable
Sign-in with OAuth
The address needs your own account values, so we cannot check it for you
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Discussion
Ask, share a tip or report that it does not work. Sorted by what people marked helpful.
No posts yet. Be the first to ask or share.
Posts here are written by users, not the PopNx team.
User reviews
No reviews yet
Compared with others in Databases & datasetsi
- More stars than 79% of the other 1161 servers in this category
- Published to the registry more recently than 80% of the other 1161 servers in this category
- Basic checks equal to or better than 100% of the other 1161 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Alephgrid safe?
It passed 2 of 2 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
You need to fill in: Authorization
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed 2 days ago, and the latest version (0.1.0) reached the registry 9 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT Business and above.
What can I use instead?
In the same category: Dbx, MCP Toolbox for Databases, MCP Toolbox for Databases
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Toolbox for Databases
MCP Toolbox for Databases enables your agent to connect to your database.
MCP Toolbox for Databases
MCP Toolbox for Databases enables your agent to connect to your database.
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
An open-source spreadsheet for data that doesn't fit in a spreadsheet.
Hundreds of millions of rows, real spreadsheet formulas, SQL when you want it.
Runs on your laptop or your own server. Your data never leaves it.
Open a CSV or Parquet file with hundreds of millions of rows, then scroll, sort, filter, edit and add calculated columns in your browser. Next to those big tables, build ordinary sheets with formatting, charts and Excel formulas such as XLOOKUP and SUMIFS, and point those formulas straight at the big tables. Everything runs on a DuckDB file on your machine. There are no seats, tiers or paywalls: export, sign-in, teams and every other feature are free.
alephgrid flights.parquet # opens http://127.0.0.1:7878 with the file loadedalephgrid --demo-rows 100000000 # or try it on 100M generated rows
| Your own functions in a side panel: code, tests, docs and versions | SQL when you want it, docked under the grid (dark theme) |
| The hub: every workbook, its size and whether its compute is running |
Status: pre-release. The first release (v0.1.0) is being prepared. Build from source or
with Docker today; published binaries and images come with the release. See
Why Alephgrid
- Big tables stay fast. Opening a workbook reads nothing into memory. The grid asks only for the rows on screen, so scrolling to row 900,000,000 is a range read. Sorts build a permutation, not a copy; calculated columns are computed only for the rows you look at.
- A real spreadsheet next to them. Sheets use Excel syntax and an Excel-compatible engine (IronCalc), with formatting, merged cells, frozen panes, charts, colour rules, comments and XLSX import and export.
- Spreadsheet formulas over big tables.
=XLOOKUP(A2, customers[id], customers[region])and=SUMIFS(orders[amount], orders[region], A2)in a sheet cell run as one query over the whole table, not one lookup per row. See table formulas. - No SQL required, SQL available. Filters, pivots, joins and charts work without writing SQL; the SQL workspace stays closed until you open it, and a server can turn it off.
- Yours to run. One binary with the UI embedded, data in a plain directory, Apache-2.0. Teams get spaces, roles, single sign-on, audit, quotas and backups in the same binary.
- Agents through MCP. Give an AI agent read access to a workbook's tables, sheets and saved queries over the Model Context Protocol, with a receipt for every result.
Features
| Import | CSV/TSV (auto-detected), Parquet, JSON/JSONL, gzip as tables; XLSX as editable sheets. Drag and drop or CLI. Streamed, reviewed in a side pane with column types and samples |
| Tables | Virtual canvas grid for any number of rows; typed edits, insert and delete rows; add, rename and delete columns; calculated columns (=[fare_usd] / [distance_mi]); multi-column sort and filters over the whole table; header value filters with counts; saved views |
| Sheets | Excel formulas, cross-sheet references, named ranges, dynamic arrays, LET / LAMBDA; formula autocomplete and argument help; undo/redo |
| Editing | Keyboard first: arrows, Shift and Mod selection, F2, Mod+A (the filled block, then the sheet), copy, cut, paste with formulas translated, paste special (values, formulas, formats, transpose), fill down and right, and a fill handle that continues series (1, 2 → 3, 4; Week 1 → Week 2) or repeats patterns. See keyboard |
| Formatting and layout | Bold, italic, underline, strikethrough, sizes, colours, borders, alignment, wrap, number formats, merged cells; frozen rows and columns, sizes, hide and unhide, zoom 50–200%; kept through XLSX |
| Sheet data | Find and replace (one sheet or all), sort and filter a range, colour rules and scales, allowed-value lists, charts (column, bar, line, area, scatter, pie) previewed before they are saved, comments with replies |
| Analysis | Live sum, average and count of the selection; the Analyze pane for summaries, pivots, joins, charts and column profiles without SQL; deduplicate, split, trim and convert types with previews |
| SQL | Schema browser, autocomplete, $parameters, cancellable previews, saved and live queries with versions, tables from queries, complete exports; reads the workbook's own tables only |
| Functions | Define reusable functions as sheet formulas, SQL expressions or sandboxed Python; test them, publish versions, pin and roll back. See functions |
| Export | CSV, Parquet or JSON lines for any table or filtered view; XLSX for sheets, with a report of anything XLSX cannot hold |
| Collaboration | Several people on one workbook see each other's edits live; history and revision restore |
| Teams | Organizations, spaces, owner/editor/viewer roles (also from identity-provider groups), invitations, service tokens, password or OpenID Connect sign-in, quotas, audit log, backups and an administration screen. See teams |
| Compute | Each open workbook gets its own share of memory and threads, sleeps when idle and wakes when opened; larger sizes (--profile) for heavy workbooks. See compute |
| Agents (MCP) | Read-only agent connections per space or workbook over Streamable HTTP (/mcp) or stdio (alephgrid mcp): schema cards, catalog search, reads, read-only SQL, saved queries and analyses, content-hashed receipts, activity per connection |
The full inventory, including what is partial or not planned, is in docs/SPREADSHEET_FEATURES.md.
Quick start
Install a release
From v0.1.0 (being prepared; see releasing):
npx alephgrid flights.parquet # npm, or: pnpm dlx / yarn dlx / bunx alephgriddocker run -p 7878:7878 -v alephgrid-data:/data ghcr.io/alephgrid/alephgrid
or download alephgrid-VERSION-TARGET.tar.gz for Linux (x86_64, arm64) or macOS (Apple silicon, Intel) from GitHub Releases and check it against SHA256SUMS. On Windows, use Docker or WSL.
From source
Requires Rust 1.88+ and Node 20+.
git clone https://github.com/alephgrid/alephgrid && cd alephgrid(cd web && npm install && npm run build) # build the UI (embedded into the binary) cargo build --release ./target/release/alephgrid --demo-rows 10000000
The first build compiles DuckDB from source, which takes several minutes.
Docker (for a team)
docker compose up -ddocker compose logs alephgrid | grep "setup code" # the one-time code that creates the admin open http://localhost:7878/setup
With --auth accounts, people sign in with a password or single sign-on (OpenID Connect), and spaces grant them roles; see docs/TEAMS.md. Without it (the default on your own machine), there is no sign-in and the server only listens on 127.0.0.1. Running it for others, backups, upgrades and restores are covered in docs/OPERATIONS.md.
Options
| Flag | Env | Default | |
|---|---|---|---|
--data-dir | ALEPHGRID_DATA_DIR | ./alephgrid-data | |
--host / --port | ALEPHGRID_HOST / ALEPHGRID_PORT | 127.0.0.1 / 7878 | |
| `--auth local\ | accounts` | ALEPHGRID_AUTH | local: no sign-in, loopback only |
--public-url | ALEPHGRID_PUBLIC_URL | how people reach the server (needed for SSO; https makes cookies Secure) | |
--oidc-issuer, --oidc-client-id | ALEPHGRID_OIDC_* (secret: ALEPHGRID_OIDC_CLIENT_SECRET) | no single sign-on | |
--session-hours | ALEPHGRID_SESSION_HOURS | 12 | |
--space-storage, --space-workbooks, --space-jobs, --space-open-workbooks | ALEPHGRID_SPACE_* | no limits (admins can set them per space) | |
--memory-limit | ALEPHGRID_MEMORY_LIMIT | DuckDB default (80% of RAM, spills to disk) | |
--threads | ALEPHGRID_THREADS | all cores | |
--disk-reserve | ALEPHGRID_DISK_RESERVE | 32MiB kept back so the server can still restart when the disk fills (operations) | |
--idle-timeout | seconds without activity before a workbook's compute sleeps | ||
--profile name=MEM:THREADS[:dedicated] | extra compute sizes admins can grant to spaces | ||
--disable-sql | ALEPHGRID_DISABLE_SQL | SQL allowed; when set, every operation that runs user-written SQL is refused | |
--demo-rows N | generate a demo workbook | ||
alephgrid mcp --url URL --token agc_… | ALEPHGRID_URL, ALEPHGRID_AGENT_TOKEN | connect an MCP client over stdio to a running server (docs/MCP.md) |
alephgrid --help lists every option.
Formulas
In sheets, formulas use Excel syntax: =SUM(B2:B9), =XLOOKUP(...), =Budget!B4*2. A sheet formula can read a whole table by name:
=SUMIFS(orders[amount], orders[region], $A2, orders[month], $B$1)=XLOOKUP(A2, customers[id], customers[region], "none")
Fill or drag it like any formula; each copy reads its own row. The formula catalog lists supported functions with tested examples, and known gaps are documented with reproducible inputs.
In tables, calculated columns refer to columns by name, and the leading = is optional:
=[fare_usd] / [distance_mi]=CASE WHEN [dep_delay_min] > 15 THEN 'late' ELSE 'on time' END =[origin] || '→' || [dest]
Typical flow: summarise 100M rows with Analyze or SQL, choose *Open in sheet*, then model on top of the result.
How it is built
- DuckDB underneath. Every workbook is one DuckDB file: columnar, compressed and parallel across cores. Imports use DuckDB's own CSV, Parquet and JSON readers.
- IronCalc for sheets, stored in the same workbook file.
- Rust server (axum, HTTP and WebSocket) with the UI embedded; TypeScript client with a canvas grid, no framework. Wire types are generated from Rust, and a test fails when they drift.
See docs/ARCHITECTURE.md.
Measured (20M-row table, 9 columns, debug build, 8-core / 8 GB laptop)
| Operation | Time |
|---|---|
| Reopen the workbook after a restart |