Audio & AI
Automate work across your stack
Generate speech and sound effects, transcribe audio, and manage voices, dubbing and agents with ElevenLabs workflows in FastHook.
Webhook · ElevenLabs
Connect ElevenLabs and provide a real FastHook File in the webhook file field. The action uploads one audio File and returns its transcript. The sample File contains synthetic silence; replace it with your own input and keep the workflow inactive until configured.
Webhook · ElevenLabs
Connect ElevenLabs, then send a short prompt in text. The action returns an audio File that can be mapped to a later step. Review credit usage and output length before activation; the installed workflow starts inactive.
Webhook · ElevenLabs
Connect an ElevenLabs API key, choose a Voice ID, then send a text field to the webhook. The action returns an MP3 File for a later storage or delivery step. Generation consumes credits; the installed workflow starts inactive.
In ElevenLabs, open Developers → API Keys and create a dedicated key with access to the features you need. Managed triggers require ElevenAgents Write and Webhooks Access. In FastHook, enter a stable connection name and the key, then select dedicated agents without an existing post-call webhook. FastHook verifies workspace access, stores the key encrypted and manages signed subscriptions when workflows are active.
Connect your accounts and map the required fields from earlier steps. Test with data you control before activation.
Generation and transcription use ElevenLabs credits. Available models, endpoints and rate limits depend on your plan, role, region and API-key restrictions. Conversation completed and Transcript ready both use post_call_transcription, delivered after the call ends and analysis completes. These are not immediate hangup or live transcription events. Call initiation failed requires supported telephony. Use dedicated agents: FastHook refuses to replace an existing agent or inherited workspace post-call webhook. Active workflows share the required event subscription; pausing the last workflow removes it. HMAC signatures and timestamp freshness are checked before delivery. Identical signed payload redelivery is deduplicated. Make downstream effects safe to retry. List Actions return one page; map documented page or cursor inputs for later pages. FastHook accepts one File up to 25 MiB per multipart Action. Additional binary fields in the same request are not yet exposed. Binary and text responses are limited to 2 MiB; choose short inputs and small pages. Realtime WebSocket audio and partial transcripts are separate ElevenLabs protocols and are not exposed as workflow triggers. The API-key connection does not use OAuth refresh. Disconnecting removes the local FastHook credential; revoke the key in ElevenLabs to end provider access. A catalog Action is subject to provider access and is not a claim that every endpoint has been exercised on a live account.
Build your Workflow
In ElevenLabs, open Developers → API Keys and create a dedicated key with access to the features you need. Managed triggers require ElevenAgents Write and Webhooks Access. In FastHook, enter a stable connection name and the key, then select dedicated agents without an existing post-call webhook. FastHook verifies workspace access, stores the key encrypted and manages signed subscriptions when workflows are active.
Start workflows when a conversation completes, its transcript is ready or a telephony call fails to start. Automatically create, verify and remove signed post-call subscriptions for selected agents. Generate speech and sound effects, and retrieve supported audio results as Files. Transcribe audio and submit supported one-File multipart requests. List and manage voices, models, history, dubbing, Studio, Agents Platform and other API resources
Generation and transcription use ElevenLabs credits. Available models, endpoints and rate limits depend on your plan, role, region and API-key restrictions. Conversation completed and Transcript ready both use post_call_transcription, delivered after the call ends and analysis completes. These are not immediate hangup or live transcription events. Call initiation failed requires supported telephony. Use dedicated agents: FastHook refuses to replace an existing agent or inherited workspace post-call webhook. Active workflows share the required event subscription; pausing the last workflow removes it. HMAC signatures and timestamp freshness are checked before delivery. Identical signed payload redelivery is deduplicated. Make downstream effects safe to retry. List Actions return one page; map documented page or cursor inputs for later pages. FastHook accepts one File up to 25 MiB per multipart Action. Additional binary fields in the same request are not yet exposed. Binary and text responses are limited to 2 MiB; choose short inputs and small pages. Realtime WebSocket audio and partial transcripts are separate ElevenLabs protocols and are not exposed as workflow triggers. The API-key connection does not use OAuth refresh. Disconnecting removes the local FastHook credential; revoke the key in ElevenLabs to end provider access. A catalog Action is subject to provider access and is not a claim that every endpoint has been exercised on a live account.
Choose a ready-made ElevenLabs Workflow, connect your accounts, and test it before activation.
Explore ElevenLabs Workflow templates
