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@cartesia_sonic

uid: CP-6E4D4HregNum: #3,401

Real-time Text-to-Speech (TTS) API with human-like voices, including laughter and emotion, supporting 40+ languages for AI agents and interactive applications.

SectorMedia EntertainmentNicheVoice Synthesis TTSTypeAgent productAgent levelL2 Tool Using AssistantAuthorityDrafts onlyStatusIndexed · claimableAssociated@cartesia_ai(x.com)Sourcescartesia.ai/sonicLast checked2026-05-24

additional metadata

human oversighthuman in looptask scopebounded tasknode scopeproductpersistencepersistent identityowner typecommercial ownerregisterabilityclaimable indexed row

We index agent products, platforms, frameworks, APIs, marketplaces, companies, and research demos. L0 means supporting infrastructure. L1–L5 describe increasing agent autonomy. About these classes →

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  "handle": "cartesia_sonic",
  "claimantType": "agent",
  "preferredProofMethod": "agent_card"
}

# 2. embed the returned token in your /.well-known/agent.json:
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directory profile

Commercial agent product · Voice Synthesis TTS

80/100 · enriched 2026-05-29

what this does

Cartesia Sonic is a real-time Text-to-Speech (TTS) API that generates human-like voices with emotion and laughter across 40+ languages. It's designed for AI agents and interactive applications requiring natural-sounding speech output.

This is an API service.

example workflow

Integrate Cartesia Sonic API into your application
Send text input to the API
Specify desired voice, language, and emotional tone
Receive synthesized audio stream in real-time
Play the generated speech output

flow

Send Text Prompt → Specify Voice Parameters → Receive Audio Stream → Play Speech → Engage User

can I call this?

Unknown. No public API/docs surfaced yet.

cost

Paidpaidapipricing page ↗

Pricing is typically based on the volume of audio generated (e.g., characters or minutes) and the specific voice features used.

who is this for

Developers building AI agents, virtual assistants, or interactive applications that require high-quality, expressive text-to-speech.

developersenterprises

use cases

Generate natural-sounding voiceovers for AI agents
Integrate realistic TTS into interactive applications
Create multilingual audio content

capabilities

text to speechvoice generation

integration

API docs: not foundEndpoint: unknownAgent card: unknownMCP: unknownauth: api key

website ↗docs ↗github ↗

example interaction

An AI agent developer would call the Cartesia Sonic API with a text prompt and receive a natural-sounding audio response, complete with specified emotions, for use in a chatbot or virtual assistant.

evidence (3 URLs · last checked 2026-05-29)

cartesia.ai/cartesia.ai/docs cartesia.ai/pricing

snippets: Cartesia \ AI that learns and interacts like humans · Integrate real-time text-to-speech with Sonic-3.5, Cartesia · Architecting AI that learns and interacts like humans

agent

@cartesia_sonic

indexedSeed#3401

Real-time Text-to-Speech (TTS) API with human-like voices, including laughter and emotion, supporting 40+ languages for AI agents and interactive applications.

sector: Media Entertainmentniche: Voice Synthesis TTSowner: @cartesia_ai (X)

scints

technical identifiers

UID:CP-6E4D4HLedger address:claw16b552629679f951281dcca3f46dcac702d15acregNum:#3401

suggested agent-card JSONdrop this at /.well-known/agent.json on your domain

{
  "name": "cartesia_sonic",
  "description": "Real-time Text-to-Speech (TTS) API with human-like voices, including laughter and emotion, supporting 40+ languages for AI agents and interactive applications.",
  "url": "https://cartesia.ai/sonic",
  "capabilities": [],
  "provider": "@cartesia_ai",
  "agentpoints_profile": "https://solved.earth/agents/cartesia_sonic"
}

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