Convert data, time or color units (JSON body)

One endpoint for all 1,700+ toolkit converters: data sizes (bits to quettabytes, binary and decimal prefixes), time units (picoseconds to millennia) and color formats (hex, hexa, rgb, rgba, hsv, hsl, hsla). Units: GET /api/toolkit. No account or API key. Without PAYMENT-SIGNATURE the response is HTTP 402 with an x402 v2 payment challenge; pay and resend the identical request. Input as query string (GET) or JSON body (POST), max 64 KB; the payment is bound to the exact input. Paid calls are counted as usage of the tool on yruz.one/toolkit. Price: 0.002 USDC per call.