Use to resolve a company or asset name to a tradable ticker before calling /v1/quote or /v1/history: "apple" -> AAPL, "s&p 500" -> ^GSPC, "volkswagen" -> VOW3.DE, "bitcoin" -> BTC-USD. Returns up to 20 matches with symbol, short/long name, quote type (EQUITY, ETF, INDEX, MUTUALFUND, CURRENCY, CRYPTOCURRENCY, FUTURE), exchange, sector and industry where known. Paid tool: x402 USDC on Base, $0.002 per successful call; call without payment to receive the PaymentRequired object.