Overview
Pass either a chemical symbol or full element name to query the element directory. Each lookup returns classification details, physical state, discoverer history, and X/Y grid coordinates for table rendering. Paid plans include thermodynamic values like melting and boiling points, density, electron affinity, electronegativity, and electron shell configurations.
Live Test Periodic Table Skill Skill →
The tool
Once your client is connected to the VerveKit server, this appears in its tool list as PeriodicTableSkill. It is read-only and open-world — it fetches and never mutates anything on your side — so most clients call it without asking you to confirm.
{
"name": "PeriodicTableSkill",
"arguments": {
"name": "hydrogen"
}
}You do not name the tool yourself; the model picks it. Asking about hydrogen in the terms this skill covers is enough for it to reach for PeriodicTableSkill on its own — naming it explicitly also works, and is the way to force the call.
Connecting
One server URL covers every skill in the catalog, including this one. Authorization is OAuth: the client opens a browser once, and there is no key to paste into a config file.
{
"mcpServers": {
"vervekit": {
"url": "https://api.vervekit.com/v1/mcp"
}
}
}https://api.vervekit.com/v1/mcpPer-client setup — Claude, Cursor, VS Code, ChatGPT — is on the MCP setup page.
Arguments
These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made. Premium arguments are accepted on every plan but only take effect on plans that include them.
| Argument | Type | Description |
|---|---|---|
nameRequired | string | The name of the chemical element to get information about |
What the model gets back
The result carries a structuredContent object matching the tool's declared outputSchema, so a client reads fields without parsing prose. status is "ok" and error is null on success; a null field means the value was not available for that input, not that the call failed.
{
"status": "ok",
"error": null,
"data": {
"count": 1,
"elements": [
{
"name": "Hydrogen",
"appearance": "colorless gas",
"atomic_mass": 1.008,
"boil": 20.271,
"category": "diatomic nonmetal",
"density": 0.08988,
"discovered_by": "Henry Cavendish",
"melt": 13.99,
"molar_heat": 28.836,
"named_by": "Antoine Lavoisier",
"number": 1,
"period": 1,
"group": 1,
"phase": "Gas",
"source": "https://en.wikipedia.org/wiki/Hydrogen",
"summary": "Hydrogen is a chemical element with chemical symbol H and atomic number 1. With an atomic weight of 1.00794 u, hydrogen is the lightest element on the periodic table. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass.",
"symbol": "H",
"xpos": 1,
"ypos": 1,
"wxpos": 1,
"wypos": 1,
"shells": [
1
],
"electron_configuration": "1s1",
"electron_configuration_semantic": "1s1",
"electron_affinity": 72.769,
"electronegativity_pauling": 2.2,
"ionization_energies": [
1312
],
"cpk-hex": "ffffff",
"block": "s"
}
]
}
}
Response fields
Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.
| Field | Type | Example | Description |
|---|---|---|---|
count | number | 1 | Number of elements returned in elements |
elements | array[1] | ||
elements.0.name | string | Hydrogen | Chemical element name |
elements.0.appearance | string | colorless gas | Physical appearance of the element |
elements.0.atomic_massPremium | number | 1.008 | Atomic mass of the element |
elements.0.boilPremium | number | 20.271 | Boiling point temperature in Kelvin |
elements.0.category | string | diatomic nonmetal | Classification category of element |
elements.0.densityPremium | number | 0.08988 | Element density at standard conditions |
elements.0.discovered_by | string | Henry Cavendish | Name of element discoverer |
elements.0.meltPremium | number | 13.99 | Melting point temperature in Kelvin |
elements.0.molar_heatPremium | number | 28.836 | Molar heat capacity value |
elements.0.named_by | string | Antoine Lavoisier | Person who named the element |
elements.0.number | number | 1 | Atomic number of the element |
elements.0.period | number | 1 | Period position in periodic table |
elements.0.group | number | 1 | Group position in periodic table |
elements.0.phase | string | Gas | Physical state of element at standard conditions |
elements.0.source | string | https://en.wikipedia.org/wiki/Hydrogen | URL reference source for element info |
elements.0.summaryPremium | string | Hydrogen is a chemical element with chemical symbol H and atomic number 1. With an atomic weight of 1.00794 u, hydrogen is the lightest element on the periodic table. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. | Detailed summary about the element |
elements.0.symbol | string | H | Chemical symbol for the element |
elements.0.xpos | number | 1 | X position coordinate in periodic table |
elements.0.ypos | number | 1 | Y position coordinate in periodic table |
elements.0.wxpos | number | 1 | Width X position in periodic table layout |
elements.0.wypos | number | 1 | Width Y position in periodic table layout |
elements.0.shellsPremium | array | [1] | Array of electron shell configurations |
elements.0.electron_configurationPremium | string | 1s1 | Full electron configuration notation |
elements.0.electron_configuration_semanticPremium | string | 1s1 | Semantic electron configuration notation |
elements.0.electron_affinityPremium | number | 72.769 | Electron affinity in kJ/mol |
elements.0.electronegativity_paulingPremium | number | 2.2 | Electronegativity on Pauling scale |
elements.0.ionization_energiesPremium | array | [1312] | Array of ionization energy values |
elements.0.cpk-hex | string | ffffff | CPK color hex code for element |
elements.0.block | string | s | Block designation in periodic table |
Failure modes
Errors come back as tool errors carrying a sentence the model can act on, not a bare status code. Error handling covers the full list.
| Status | What it means |
|---|---|
400 / 422 | The arguments did not validate. The message names the offending one. |
401 | The OAuth session is invalid or expired — reconnect the server. |
403 | Blocked by a key restriction or an IP allow-list. Never a bad identity. |
404 | This skill is not part of VerveKit. Check the catalog. |
429 | Out of credits, or a brief rate limit. The message tells them apart. |
A call costs 2 credits each time the tool actually runs; a model that reasons about the tool without calling it costs nothing.
Use cases
- Interactive Table UI
- When building web-based periodic tables, developers plot tiles using provided grid coordinates and apply CPK hex values for element color schemes.
- Chemistry Learning Apps
- Educational platforms display atomic numbers, physical phases, and discoverer records to students reviewing fundamental chemical properties in study flashcards.
- Laboratory Sample Inventory
- Chemical inventory systems cross-reference raw element symbols against standardized names, blocks, and groups during reagent intake and cataloging.
- Molecular Model Visualization
- Render 3D molecular structures in browser viewports by mapping chemical symbols directly to standardized CPK coloring codes and classification categories.
Other ways to use Periodic Table Skill
Set up Periodic Table Skill on VerveKit, or reach the same source a different way. Your VerveKit account and credits work on all of them — one key, one balance.
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