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Periodic Table 2026

MCP server · hosted · v1.0.6 · io.github.changzhiai/periodic-table
Online · tested 2h agoNEW · 4h agoNew version 4h agoSeen in the registry 3h ago

Interactive periodic table with all 118 elements. Properties, comparisons, and more.

Website ↗How to connect ↓

What it does

Periodic Table 2026 is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

No capability identified yet from its description.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.

At a glance

Hosted (remote)YES
Local installNO
Version1.0.6
PriceNot in the registry
First seen30 Oct 2026
Last checked3h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 2h ago (live check)

Hosted endpoint

  • https://theperiodictable.org/mcp streamable-http

In Claude Code: claude mcp add --transport http periodic-table-2026 https://theperiodictable.org/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "periodic-table-2026": {
      "url": "https://theperiodictable.org/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 2h ago

ONLINE Periodic Table 2026 answered an MCP connection on 31 Oct 2026 and introduced itself as periodic-table 1.0.0 (MCP protocol 2025-06-18).

4 tools offered to AI assistants

  • get_element · Everything the Interactive Periodic Table knows about one element: classification, physical and chemical properties with units, electron configuration, discovery, a short summary and a longer introduction (uses, production, history, safety)
  • search_elements · Find elements by symbol, atomic number, or full or partial name in any supported language. Use it when a name is misspelled, partial or in another language.
  • list_elements · List elements, optionally filtered by category, block, period, group, state at 25 °C or a numeric property range, and sorted by a property. Without filters it lists all 118 elements in atomic-number order. Elements with no value for the ran
  • compare_elements · Side-by-side numeric properties of 2-10 elements, with units.

What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.

Facts & evidence

Each fact shows where it was seen and when.
FactValueEvidenceSourceLast confirmed
Websitehttps://theperiodictable.orgDECLAREDSRC-001 Official MCP Registry3h ago
Version1.0.6DECLAREDSRC-001 Official MCP Registry3h ago
Hosted endpointhttps://theperiodictable.org/mcpDECLAREDSRC-001 Official MCP Registry3h ago
Local install (package)noDECLAREDSRC-001 Official MCP Registry3h ago
Remote access (hosted)yesDECLAREDSRC-001 Official MCP Registry3h ago
Registry statusactiveDECLAREDSRC-001 Official MCP Registry3h ago
MCP serveryesDECLAREDSRC-001 Official MCP Registry3h ago

Change history

  • VERSION30 Oct 2026
    1.0.5 → 1.0.6
  • NEW30 Oct 2026
    first seen in the index

Is this page accurate?

Flag it and our robot re-checks the official source. Reports never change a score.

Do you run Periodic Table 2026? Know when it stops answering

For publishers · optional

Its hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.

Monitor Periodic Table 2026Launch offer $39.99 once, for life instead of $9.99/month · All plans

Monitoring never changes a score or a rank.

Are you the publisher of Periodic Table 2026?

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Questions about Periodic Table 2026

How do I connect Periodic Table 2026?

Use the hosted endpoint https://theperiodictable.org/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does Periodic Table 2026 offer?

When Electra Index connected on 31 Oct 2026, it listed 4 tools: get_element, search_elements, list_elements, compare_elements. The full list is in "Live check" above.

Is Periodic Table 2026 online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 2h ago.