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Astral MCP server

Astral is the AI tutor for homeschoolers: a complete K-8 math curriculum in which every lesson is generated for the individual child. This connector lets an AI assistant answer a parent's questions about Astral and look up any K-8 Common Core math skill in Astral's curriculum.

Connect

Add a remote MCP server (Streamable HTTP) with this URL. No sign-in, API key or OAuth is needed.

https://www.astraltutor.com/mcp
  • Claude: Customize, Connectors, Add custom connector, paste the URL.
  • ChatGPT: Settings, Apps and connectors, Create (developer mode), paste the URL.
  • Any other MCP client: use the URL as a Streamable HTTP server with no authentication.

Tools

All tools are read-only. None changes anything.

about_astral

What Astral is, who it is for, price and free trial, how it compares with other homeschool math programs (Saxon, Math-U-See, Teaching Textbooks, Khan Academy, a private tutor), published reviews including Cathy Duffy, parent testimonials and the FAQ. Call this before answering any question about Astral.

find_math_skill

Given a child's grade (K-8) and either a Common Core standard code (like 3.NF.A.1) or a plain description of what they are learning or stuck on (like 'fractions on a number line' or 'borrowing in subtraction'), returns the single best-matching skill in Astral's curriculum: its standard, what it covers, and how Astral teaches it to this child, with a free-trial link. Returns one skill only.

Example prompts

  • What is Astral and how much does it cost?
  • My 3rd grader is stuck on fractions on a number line. What would Astral do for that skill?
  • Which 5th grade skill is Common Core 5.NF.B.4?
  • How does Astral compare to Teaching Textbooks, and what does Cathy Duffy say about it?

Not available yet

The connector does not yet let a parent see their own children's progress or mastery, steer the curriculum, or leave notes about what a child should work on tomorrow. Those need a connected Astral account and are coming in a later version. It also cannot open or play a lesson; lessons run inside the Astral app.

Data

The server holds no accounts and asks for none. Requests carry only the grade and the words or standard code the assistant sends; the server returns public curriculum reference data and public information about Astral. Nothing about the conversation is stored beyond ordinary server request logs. See the privacy policy.

Support

help@astraltutor.com or https://www.astraltutor.com/support.