price

name	price
description	Live metal/crypto prices, jewelry valuation by weight+purity, currency conversion. Use for gold, silver, platinum prices, jewelry value, or exchange rates.
metadata	{"nessi":{"command":"price","enabled":true}}

Price

Live prices for precious metals and crypto. Calculate the value of jewelry or scrap metal by weight and purity. Also converts currencies at live rates.

When to use this skill

Use price whenever the user asks about:

• Current gold, silver, platinum, or crypto prices
• The value of jewelry, coins, or scrap metal (by weight, purity, karat)
• Currency conversion (e.g., "100 USD in EUR")

Commands

Get current price per troy ounce

price gold
price silver --currency EUR
price platinum --currency CHF
price bitcoin

Available metals/assets: gold, silver, platinum, palladium, copper, bitcoin, ethereum. Use price list to see all.

Calculate value of metal by weight and purity

This is the most important command. It calculates the exact value — you never need to do the math yourself.

price value gold --weight 23 --purity 750 --currency EUR
price value gold --weight 5.5 --unit oz --purity 999
price value silver --weight 100 --purity 925 --currency EUR

Parameters:

• --weight (required) — weight as a number
• --unit — g (default), kg, oz (troy ounce = 31.1035g), dwt (pennyweight = 1.555g)
• --purity (required) — fineness or karat. Accepts: 333, 585, 750, 999, 8K, 14K, 18K, 24K, or decimal like 0.75. Always ask the user for purity if they didn't specify it.
• --currency — output currency (default: EUR). Any ISO code: USD, EUR, GBP, CHF, etc.

Convert currency

price convert 100 --from USD --to EUR
price convert 500 --from CHF --to GBP

List available assets

price list

How to handle user questions

When the user asks about the value of a piece of jewelry or metal, you need three things:

1. What metal? — gold, silver, platinum (default: gold)
2. How heavy? — weight in grams (ask if not given)
3. What purity? — karat or fineness stamp (ask if not given — common stamps: 333, 585, 750, 916, 999)

If the user doesn't specify purity, ask them. Common purity marks are stamped on jewelry (e.g., "750" or "18K" inside a ring). Don't assume 999 for jewelry — that would overestimate the value.

Purity reference

Stamp	Karat	Purity	Typical use
333	8K	33.3%	Budget jewelry (common in Germany)
375	9K	37.5%	UK jewelry
585	14K	58.5%	Standard jewelry
750	18K	75.0%	Fine jewelry
900	21.6K	90.0%	Coins
916	22K	91.6%	Indian/Middle Eastern jewelry
999	24K	99.9%	Pure gold bars/coins

Presenting results

After running a price command, use the card tool (metric layout) to display the result visually instead of writing it as plain text. The card tool is a direct tool — call it by name, not via bash.

For a single price lookup, use a single metric card. For a valuation with weight and purity, use multiple metrics (items array) to show the key values (weight, purity, material value) at a glance. Add subtitles for context (e.g. "per troy ounce", "33.75g pure gold"). Use icons like ti-coin, ti-currency-euro, or ti-scale.

Example conversation flow

User: "Ich habe eine Goldkette, 23 Gramm, was ist die wert?" → You don't know the purity yet. Ask: "Welche Feinheit hat die Kette? Das steht oft als Stempel drauf — z.B. 333, 585, oder 750." User: "750" → Run: price value gold --weight 23 --purity 750 --currency EUR → Show the result with the card tool (metric layout with items for weight, purity, and value), then add a brief interpretation.