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SkyOS

Stores short dated notes per project so Claude, ChatGPT and Codex can resume them in a new chat.

FreeActively maintained

KnowledgeFree tier
skyos.ink ↗
Open skyos.inkAlternativesSet it up for my teamIs SkyOS yours? Claim the card →
At a glanceswept Oct 18, 2026

≈ 1visits/mo

Little sign of use · estimate, read Oct 18, 2026

For
people running ongoing projects in Claude, ChatGPT or Codex who keep re-explaining context
Price
Freepricing page, read Oct 21, 2026
Activity
Actively maintainedsite updated 6 days ago
Runs as
API
Used for
  • resume an ongoing project in a new chat by name
  • keep separate notes for each project so they don't mix
  • carry decisions across Claude, ChatGPT and Codex
read off skyos.ink on Oct 21, 2026
Worth knowingcomputed from what we read · each with its source
Pricingpricing page, read Oct 21, 2026

Free

pricing page

Your datawhat they publish, each line with its page · read Oct 21, 2026

“We don't sell your data, show you ads, or use what you store to train AI models.”

privacy policy ↗

These are SkyOS's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 21, 2026
  • MCP serverink.skyos/memoryverified in the MCP registry
  • Stateanswers, requires sign-inchecked 2026-10-21
  • Address to connectapi.skyos.ink/mcp/claude
  • MCP docsskyos.ink/memory-mcp-serverthe vendor's page ↗

MCP server details →

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.

Alternatives in Knowledgeby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Three tools from the Atlas for the job you describe, each with what fits and what does not.

From people who use itnot part of the reading

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Questions this page answers
  • What is SkyOS?

    Stores short dated notes per project so Claude, ChatGPT and Codex can resume them in a new chat. It is listed in the Atlas under Knowledge.

  • Who is SkyOS for?

    people running ongoing projects in Claude, ChatGPT or Codex who keep re-explaining context

  • How much does SkyOS cost?

    SkyOS is free, per its pricing page on 2026-10-21.

  • Is SkyOS free?

    Yes: SkyOS is free, per its pricing page on 2026-10-21.

  • Do people use SkyOS?

    Little sign of use: ≈ 1 visits/mo · estimate, 2026-10.

  • Is SkyOS still maintained?

    Actively maintained: site updated 6 days ago.

  • Does SkyOS train AI on your data?

    No, per its privacy policy (2026-10-21): “We don't sell your data, show you ads, or use what you store to train AI models.”

  • Is SkyOS safe?

    We do not audit vendors. What SkyOS publishes, read 2026-10-21: on training with your data, “We don't sell your data, show you ads, or use what you store to train AI models.”.

  • What are alternatives to SkyOS?

    In Knowledge, by use: Mem, Capacities, thredly, Hjarni, MyCrystal, beckett.

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