1
Get an API key
Create a key in the Geko console. Keys look like
sk-tokay-…. Keep it server-side — treat it like a password. New accounts get $1.00 of free credits.2
Make a sound
Pick whichever feels natural — all three do the same thing.
3
Play it
hello.wav is 24 kHz, 16-bit PCM mono.Install the SDK
What next
Pick a voice
Browse the catalog and audition each voice.
Latency vs. quality
Tune the
nfe dial for speed or fidelity.Use it in your app
Server-side Next.js / Express integration, done right.
Errors & retries
Handle failures cleanly in production.
First call slow? The GPU backend scales to zero when idle, so a cold start can take tens of seconds; subsequent calls are fast. The SDK’s default 120 s timeout accounts for this.