Periodic Table 2026

io.github.changzhiai/periodic-tableVersion 1.0.6

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

Status

Responds548 msNov 14, 2026, 14:47 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:47 UTC
Latency: 548 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://theperiodictable.org/mcpResponds548 msNov 14, 2026, 14:47 UTC

No sign-in

Claude Code

claude mcp add --transport http periodic-table https://theperiodictable.org/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: periodic-table
Remote MCP server URL: https://theperiodictable.org/mcp

Cursor

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

VS Code

code --add-mcp '{"name":"periodic-table","type":"http","url":"https://theperiodictable.org/mcp"}'

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Tools

4 tools

Tools of Periodic Table 2026
	Description		Read-only	Idempotent	Open world
`compare_elements`Side-by-side numeric properties of 2-10 elements, with units.	Side-by-side numeric properties of 2-10 elements, with units.	Not declared	Yes	Not declared	No
`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), plus the link to its page.	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), plus the link to its page.	Not declared	Yes	Not declared	No
`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 range or sort property are left out.	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 range or sort property are left out.	Not declared	Yes	Not declared	No
`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.	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.	Not declared	Yes	Not declared	No

Details

Registry status: Active
Published: Oct 30, 2026
Updated: Oct 30, 2026
Website: https://theperiodictable.org/⁠ (opens in a new tab)
Repository: Not given
Categories: Uncategorized
GDPR: Not declared

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