Automation
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n8n

Trigger n8n workflows from Bolna voice agent events for self-hostable, code-when-you-need-it automation. Combine visual building with custom JavaScript logic.

automationn8nworkflowself-hostedopen-source
At a glance

How n8n fits in the stack

Best for

Turning a voice agent into a workflow engine, not just a talker.

Use this layer when

The call should book, update, notify, route, or write data somewhere.

Connects to

Your telephony and AI stack plus calendars, CRMs, helpdesks, and automations.

Voice Stack

Tools are the action layer

Tools are the action layer

This layer lets Bolna take action during a call. It is how an agent books meetings, checks records, pushes updates, triggers follow-ups, and completes the workflow.

TelephonyPhone Network
STTListener
LLMReasoning
TTSVoice
ToolsActions

This page focuses on where n8n fits in a production voice stack. For full setup steps, credentials, and API details, use the documentation link above.

Overview

n8n is a workflow automation platform that combines a visual, node-based builder with the ability to drop into custom JavaScript or Python whenever a use case needs it. With Bolna's n8n integration, voice agent events can kick off workflows that read from and write to your CRM, databases, and internal tools, either on n8n Cloud or on infrastructure you host yourself.

n8n is ideal for teams that want the speed of a visual builder without giving up the flexibility of code, or that need to keep automation data inside their own infrastructure.

Features & Use Cases

Visual + Code Workflow Builder
Build workflows visually and add custom JavaScript or Python nodes wherever built-in nodes fall short.

Self-Hostable
Run n8n on your own servers for full control over data residency and compliance requirements.

400+ Integrations
Connect to CRMs, databases, messaging apps, and internal APIs alongside native HTTP request nodes for anything else.

Fair-Code Licensing
Use n8n's core functionality for free, self-hosted, without per-task pricing limits.

Use Case: Post-Call Data Sync
Push call transcripts, summaries, and extracted data from Bolna into internal databases or data warehouses immediately after each call.

Use Case: Conditional Follow-Up Automation
Branch workflows based on call outcomes: schedule a callback, send a document, or escalate to a human agent depending on what happened on the call.

Use Case: Multi-Tool Orchestration
Chain custom logic across CRMs, ticketing systems, and messaging tools in a single workflow triggered by a Bolna voice agent event.

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Keep exploring the voice stack

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Tools & Workflows

Tools let your voice agents take action during a call, not just talk. Book a calendar slot, look up an order in Shopify, push a lead into your CRM, or trigger a multi-step automation in Zapier. These integrations turn voice agents from answering machines into workflow engines.

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Telephony

Telephony providers connect your voice agents to the phone network so they can make and receive real calls. Bolna supports managed integrations with major carriers as well as bring-your-own-carrier via SIP trunking, giving you full control over call routing, number provisioning, and cost.

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Large Language Models

The LLM is the brain of your voice agent. It understands what callers say and decides how to respond. Bolna lets you swap between models like GPT-4o, Claude, and DeepSeek without changing your agent configuration, so you can optimize for speed, cost, or reasoning depth.

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Speech-to-Text

Speech-to-text converts what callers say into text that your LLM can process. Transcription accuracy and latency directly affect how natural a conversation feels. Bolna supports streaming STT providers optimized for telephony audio, including specialized models for Indian languages.

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Text-to-Speech

Text-to-speech turns your agent responses into spoken audio. Voice quality shapes how callers perceive your brand. Flat, robotic speech kills trust while natural, expressive voices build it. Bolna integrates with the fastest TTS providers so responses sound human and arrive without awkward pauses.

See where n8n fits in your production workflow

Use the demo to walk through provider selection, stack tradeoffs, and the exact workflow you want Bolna to automate.