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silk is rumik AI’s text-to-speech API. it turns text into natural, expressive speech over a simple HTTP call or a real-time WebSocket stream. audio comes back as 24 kHz mono PCM. pick the model that fits your use case:

silk muga 1

our more expressive model. steer delivery with a tone tag like [happy] and inline events like <laugh>.

silk mulberry 1.5

our faster model. steer with a natural-language description, or pick a preset studio voice.

start here

quickstart

get a key and synthesize your first clip in three steps.

prompting guide

steer muga and mulberry with tones, tags, and descriptions.

stream in real time

low-latency playback over WebSocket.

build a voice agent

drop rumik into a pipecat pipeline with pipecat-rumik.

API reference

endpoints, request fields, and a live playground.

your account

get an API key

create and manage keys in your dashboard.

open dashboard

track usage, credits, and billing.

audio format

every response is 24 kHz, mono, signed 16-bit PCM. the HTTP endpoint wraps it in a WAV container (audio/wav); the WebSocket stream sends raw PCM chunks.

status

live API uptime and incident history are at silk-api.statuspage.io.