5.2.8. Chatterbox (TTS engine)¶

Chatterbox is one of the TTS engines selectable via TTS_PROVIDER_SOURCE. It is documented under the TTS Provider aggregator rather than as a standalone service, because the user-facing role is "pick a TTS engine" — not "pick Chatterbox":

→ See services/tts-provider/README.md for the full user-facing description, source-variant table, and configuration reference.

1. Engine quick reference¶

Image: travisvn/chatterbox-tts-api:gpu (GPU only; voice-cloning model)
License: MIT (Resemble AI)
Activation: TTS_PROVIDER_SOURCE=chatterbox-container-gpu (or chatterbox-localhost for a host-installed instance)
In-container port: 4123
Host port: ${CHATTERBOX_PORT} (computed from BASE_PORT by the bootstrapper)

The manifest (service.yml) and compose fragment (compose.yml) in this folder are the bootstrapper's source of truth for those values; treat this README as a pointer, not a duplicate of the aggregator doc.

2. Dependencies & Integrations¶

2.1. Current — Upstream (this service calls)¶

No upstream calls.

2.2. Current — Downstream (services that call this)¶

Service	Category
kong	infra
hermes	agents
n8n	agents
jupyterhub	apps
open-webui	apps

2.3. Architecture diagram¶

chatterbox architecture

Open the full-size diagram for a full-screen view.

2.4. Future — Missing pair integrations¶

No high-confidence opportunities identified.

2.5. Future — Candidate new services¶

No high-confidence opportunities identified.

2.6. Future — Unused features in this service¶

No high-confidence opportunities identified.