Heystack
Actively maintained
≈ 2.6kvisits/mo
Little sign of use · estimate, read Oct 27, 2026
- For
- people and AI agents co-writing shared markdown documents and spreadsheets
- Activity
- Actively maintainedrelease 2 days ago · site updated 6 months ago
- Used for
- publish how-to guides as shared markdown documents
- track lists and reference data in markdown spreadsheets
- let AI agents read and edit shared documents
- Used more than 80% of the 294 tools on its shelfINITE Atlas →
- On the web since 2021, older than 77% of its shelfINITE Atlas
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantsheystacks.com ↗
- MCP servercom.heystacks/heystackverified in the MCP registry
- Stateanswers, 17 toolschecked 2026-10-27
- Address to connectheystacks.com/mcp
- OpenAPI spec14 pathsthe spec ↗
- MCP docsheystacks.com/doc/8254a2ce-3dfb-4202-ad3f-55036986ee17/test-smoke-mcp-spreadsheet-2026-10-130957the vendor's page ↗
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
- #1
WunelMCP · sign-in
Shared team pages where people and AI assistants co-edit, with per-author tracked changes and Word file import and export.
Little sign of useActiveFrom ≈ $11/user/mo - #2
OasisMCP · sign-in
Provides shared rooms where teams and AI agents collaborate on documents, spreadsheets, and code with persistent context across tasks.
20ActiveFrom $19/mo
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
No notes yet. What do you use Heystack for?
Sign in to leave a noteWhat is Heystack?
Lets people and automated agents collaboratively write and revise shared spreadsheets and documents in one place. It is listed in the Atlas under Data.
Who is Heystack for?
people and AI agents co-writing shared markdown documents and spreadsheets
Do people use Heystack?
Little sign of use: ≈ 2.6k visits/mo · estimate, 2026-10.
Is Heystack still maintained?
Actively maintained: release 2 days ago · site updated 6 months ago.
What are alternatives to Heystack?
In Data, by use: Wunel, Oasis.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
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