io.github.changzhiaiPublished by GitHub account changzhiaiv1.0.6Updated Oct 31, 2026
Interactive periodic table with all 118 elements. Properties, comparisons, and more.
Periodic Table 2026's hosted MCP server (theperiodictable.org); no sign-in required; Streamable HTTP; 4 tools.
No AI overview yet: these facts come from the registry entry and the server itself.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.github.changzhiai%2Fperiodic-table/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"periodic-table-2026": {
"type": "http",
"url": "https://theperiodictable.org/mcp"
}
}
}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.
localeelementrequiredSearch 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.
limitqueryrequiredlocaleList 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.
maxminsortblockgrouplimitphaselocaleperiodcategorypropertyCompare elements
Side-by-side numeric properties of 2-10 elements, with units.
localeelementsrequiredproperties83% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.