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Lilambd Constants Search
x402
Lilambd Constants Search is a paid API for AI agents from api.lilambd.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-11-02).
Searches and retrieves a paginated list of named constants (physical, mathematical, or otherwise) from the Lilambd crossing dataset
Price / call$0.005
Success—
StatusUnknown
How this service works
A crossing for play, feeling, language, science and computation — creating states that do not have names yet.
Output
Returns a JSON object containing a 'data' array of matching constant records, a 'count' integer indicating how many records were returned, and an 'attribution' string crediting the source license. The data array may be empty if no matches are found.
Example use cases
Lookup physical constant by name
“Can you search the Lilambd constants dataset for 'boltzmann' and show me the first 5 results, including their values and attribution?”
Paginate through full constants list
“I want to browse all the constants in the Lilambd dataset — fetch 50 starting from row 100 so I can see what's in the middle of the collection.”
Find math constants for scientific computation
“Search Lilambd's constants for anything related to 'pi' and give me up to 20 results — I need the exact values and their source attribution for a scientific computing project.”
Technical details
Endpoint
GEThttps://api.lilambd.com/units/constants?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to look up named constants — physical, mathematical, or otherwise — from the Lilambd crossing dataset, especially when you want searchable, paginated, attributed reference data. Prefer this over general web search when you want structured, machine-readable constant values with source attribution in a single API call.
Side effects
- Empty data array returned when search query matches no constants
- No results if 'q' parameter uses an unrecognized term or spelling
- Limit parameter out of range (must be 1-200) may cause an error or default behavior
- Payment failure (402) if USDC payment is not provided or insufficient
- Offset beyond total record count returns empty data array
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": [],
"count": 0,
"attribution": "source licence line"
}
}Tags
x402
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