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ContextStream

Shares project decisions, constraints, lessons and indexed source code with coding agents across sessions and tools, so they resume with the same context.

Free plan · From $19/moActively maintained

At a glanceswept Oct 14, 2026

≈ 8visits/mo

Little sign of use · estimate, read Oct 14, 2026

  • ContextStream8
  • #1 Coddy328k
For
Developers working across coding agents like Codex, Claude Code and Cursor who need project context carried between sessions.
Price
Free plan · From $19/mopricing page, read Oct 20, 2026
Activity
Actively maintainedsite updated 3 months ago
Company
since 2024per their About page
Used for
  • Hand off unfinished coding work between AI agents
  • Recall past decisions and lessons before changing code
  • Search indexed source code by meaning or exact text
read off contextstream.io on Oct 20, 2026
Worth knowingcomputed from what we read · each with its source
Pricingpricing page, read Oct 20, 2026

Free plan · From $19/mo

The companyeach fact with its source · read Oct 20, 2026
Your datawhat they publish, each line with its page · read Oct 20, 2026

“We don't use your project data to train AI models.”

security page ↗

These are ContextStream'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 20, 2026
  • MCP serverio.contextstream/mcpverified in the MCP registry
  • Stateanswers, requires sign-inchecked 2026-10-20
  • Address to connectmcp.contextstream.io/mcp?default_context_mode=fast&src=registry

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 Learningby 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 ContextStream?

    Shares project decisions, constraints, lessons and indexed source code with coding agents across sessions and tools, so they resume with the same context. It is listed in the Atlas under Learning.

  • Who is ContextStream for?

    Developers working across coding agents like Codex, Claude Code and Cursor who need project context carried between sessions.

  • How much does ContextStream cost?

    ContextStream has a free plan; paid plans start at $19/mo, per its pricing page on 2026-10-20.

  • Is ContextStream free?

    Yes, ContextStream has a free plan, per its pricing page on 2026-10-20.

  • Do people use ContextStream?

    Little sign of use: ≈ 8 visits/mo · estimate, 2026-10.

  • Is ContextStream still maintained?

    Actively maintained: site updated 3 months ago.

  • Does ContextStream train AI on your data?

    No, per its security page (2026-10-20): “We don't use your project data to train AI models.”

  • Is ContextStream safe?

    We do not audit vendors. What ContextStream publishes, read 2026-10-20: SOC 2, ISO 27001 stated on its security page; on training with your data, “We don't use your project data to train AI models.”.

  • How do I cancel ContextStream?

    In its own words (terms of service, 2026-10-20): “You may cancel anytime; access remains until the end of the paid period.”

  • What are alternatives to ContextStream?

    In Learning, by use: ClaudeWorld, Lodekeep, Homeschool Tools, Wikitólica, Extralingo Language Travel, Junely.

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