Cartesia

Hosted Sonic text to speech and Ink speech to text over HTTP and WebSockets.

Provider: default
Kind: AI service
Category: Compute
Official docs: https://docs.cartesia.ai/use-the-api/concurrency-limits-and-timeouts

Properties · 4 set by this component

property	type	values	required	kind default	this component
auth	enum	api-key \| oauth \| iam \| none	no	—	▸ api-key
contentFiltering	boolean	—	no	—	inherited
customerManagedKeys	boolean	—	no	—	inherited
dataResidency · advanced	enum	us \| eu \| asia \| global	no	—	inherited
dataRetentionDays	integer	—	no	—	inherited
keyStore	boolean	—	no	false	inherited
managed	boolean	—	no	false	▸ true
modality	enum	text \| vision \| speech \| multimodal \| structured \| image \| video \| audio \| embedding \| rerank	no	—	▸ speech
plan · component property	enum	free \| pro \| startup \| scale \| enterprise	no	free	inherited
product · component property	enum	tts \| stt	no	tts	inherited
publicEndpoint	boolean	—	no	—	▸ true
quotaUnitsPerMinute	integer	—	no	—	inherited
rateLimitRpm · advanced	integer	—	no	—	inherited
rateLimitTpm · advanced	integer	—	no	—	inherited
sttConcurrency · component property	integer	—	no	8	inherited
ttsConcurrency · component property	integer	—	no	2	inherited
viaGateway	boolean	—	no	false	inherited

Rules that apply · 2

Every rule whose selector covers this component's kind or its category. Whether a rule fires depends on the design: its properties, its edges and its groups.

AI API key not managedwarning

ai-api-key-unmanaged

This AI vendor is reached with an API key, and nothing in the design holds or rotates that key. It ends up in environment files or code, every caller shares it, and a single leak runs up the vendor bill until someone notices. Put the key in a key-management component, or say it is held there with keyStore.

— all of these hold:
— the node's `auth` is "api-key"
— the node's `keyStore` is false
— the node has at least one incoming edge from an app-server, worker or client
— this does not hold:
— the design contains a node of kind key-management

Stateful node without zone redundancyerror

stateful-node-without-zone-redundancy

A stateful compute node pinned to exactly one availability zone disappears with that zone, and its state goes with it. Nodes inside a cell are exempt, because there the cell is deliberately single-zone and redundancy comes from the other cells.

— all of these hold:
— the node's `stateless` is false
— the node sits inside exactly 1 availability-zone group
— this does not hold:
— the node sits inside at least one cell group

Use it in a design

nodes:
  - { id: "cartesia", component: "cartesia" }

Other AI service products · 125

and 85 more → AI service page

Source

1# yaml-language-server: $schema=../../schema/component.schema.json
2# Cartesia: hosted voice API with Sonic text to speech and Ink speech to text, over HTTP, SSE and WebSockets.
3# Per "Concurrency limits and timeouts", TTS and STT have separate concurrency limits by plan (Free 2 TTS and 8 STT,
4# Pro 3 and 12, Startup 5 and 20, Scale 15 and 60), excess requests get 429, and idle TTS WebSockets close after 5 minutes.
5schemaVersion: "1"
6type: "component"
7id: "cartesia"
8kind: "ai-service"
9provider: "default"
10docs: "https://docs.cartesia.ai/use-the-api/concurrency-limits-and-timeouts"
11defaults:
12  auth: "api-key"
13  managed: true
14  modality: "speech"
15  publicEndpoint: true
16properties:
17  plan:
18    type: "enum"
19    values: ["free", "pro", "startup", "scale", "enterprise"]
20    default: "free"
21  product:
22    type: "enum"
23    values: ["tts", "stt"]
24    default: "tts"
25  ttsConcurrency:
26    type: "integer"
27    default: 2
28  sttConcurrency:
29    type: "integer"
30    default: 8

The same page as markdown, for an agent: /catalogue/components/cartesia.md