Tool detail

Constant list

Lists physical constants, optionally filtered to one category, with the total count and available categories.

Categories: Reference data

Use when

look up all physics constants in a category
get the full list of universal physical constants

Not for

not for looking up a single named constant's value directly

Inputs

POST JSON body: category (string, optional; one of universal/adopted/electromagnetic/atomic/physico-chemical per description)

Admitted input schema

{
  "type": "object",
  "properties": {
    "category": {
      "type": "string",
      "minLength": 1,
      "maxLength": 30,
      "description": "One of: universal, adopted, electromagnetic, atomic, physico-chemical."
    }
  },
  "required": [],
  "additionalProperties": false
}

Endpoint

Method: POST
URL: https://physics.openverbs.com/v1/list

Payment

Protocol: x402
Listed price: 0.004 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: POST https://physics.openverbs.com/v1/list
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z