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Chemical Element Lookup
x402
Chemical Element Lookup is a paid API for AI agents from x402.outpimp.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns the name, atomic mass, and category of a periodic table element given its symbol or atomic number.
Price / call$0.01
Success—
StatusUnknown
How this service works
Periodic table element lookup by symbol or atomic number, returning name, atomic mass, and category. Covers the most commonly referenced elements.
Output
Returns the element's full name (e.g. 'Gold'), atomic mass (e.g. 196.967), and category (e.g. 'transition metal') for the queried symbol or atomic number.
Example use cases
Element identification by symbol
“I need to know the full name, atomic mass, and chemical category for the element with symbol Fe — can you look that up for me?”
Atomic number to element name
“What element has atomic number 92, and what category does it belong to?”
Science homework element properties
“Can you pull up the periodic table data for Carbon — its atomic mass and whether it's a metal, nonmetal, or something else?”
Technical details
Endpoint
POSThttps://x402.outpimp.com/chemicalElementLookupWhen to prefer
Choose this endpoint when an agent needs quick, structured periodic table data — element name, atomic mass, and category — for a known symbol or atomic number, without needing full elemental property sheets or isotope data.
Side effects
- Unknown or unsupported element symbol returns an error or empty result
- Providing neither symbol nor atomicNumber causes a validation error
- Very rare or recently named elements may not be covered
- Malformed symbol input (e.g. numeric string when symbol expected) returns an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| symbol | string | Element symbol, e.g. "Au" (case-insensitive). Provide this or atomicNumber. |
| atomicNumber | number | Atomic number, e.g. 79. Provide this or symbol. |
Tags
x402
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