Sales demo scheduling
Let AI assistants call prospects, confirm availability, and send the result back to your CRM or workflow.
Build a scheduling callAI phone call API for business workflows
ChatterBox turns AI assistants into outbound phone agents.
VOCAL is the ChatterBox product for outbound voice AI API workflows: launch calls, stream progress, and send structured outcomes back to your assistant, CRM, or operations system.
AI phone call APIOutbound voice AI APIVAPI call automationAssistant phone call automation
B2B first
Designed for teams that need repeatable outbound phone operations.
API native
Built around REST calls, streaming status, webhooks, and dashboard review.
Assistant ready
Trigger calls from OpenClaw, Open Claw, Hermes, Claude Code, or your own agent.
Use cases
Outbound AI phone agents for follow-up calls and operational work
ChatterBox focuses VOCAL on practical calls with clear business objectives, complete context, and structured results your systems can consume.
Customer success follow-up
Automate renewal reminders, check-ins, and pending customer follow-ups with structured call outcomes.
Send outcomes to webhooksOperations phone workflows
Call vendors, service providers, offices, and local businesses when your team needs a confirmed answer.
Review the call endpointAssistant task execution
Give OpenClaw, Open Claw, Hermes, or your own assistant a phone-call action through the VOCAL API or public CLI.
Install the agent CLIAPI workflow
VAPI call automation behind a simple business API
VOCAL wraps outbound voice AI call execution in developer-friendly endpoints so assistants and business systems can initiate calls and track outcomes without building phone infrastructure.
1
Create an outbound call
POST a phone number, call objective, caller identity, retry settings, and optional webhook URL.
2
Stream live progress
Watch status and transcript updates while VOCAL manages the outbound voice AI conversation.
3
Receive structured results
Route summaries, outcomes, completed tasks, and extracted data back into your business system.
Assistant integrations
Give any assistant a reliable phone-call action
Download the ChatterBox VOCAL skill or call the API directly from your assistant runtime. Agents can also use the public Go CLI for owner-accepted signup, auth, diagnostics, JSON output, and idempotency keys.
OpenClaw
Connect with an API key, a clear call objective, and the VOCAL result stream.
Open Claw
Connect with an API key, a clear call objective, and the VOCAL result stream.
Hermes
Connect with an API key, a clear call objective, and the VOCAL result stream.
Custom agents
Connect with an API key, a clear call objective, and the VOCAL result stream.
Pricing
Start small, then move to committed call volume
VOCAL keeps pricing visible for developers evaluating an AI phone call API and teams planning outbound voice AI automation.
Pay As You Go
$1/call
- First 3 calls free
- No setup fees
- Pay per successful call
- Basic analytics
Enterprise
Volume plan$0.25/min
$2,000/month commitment
- 8,000 minutes included
- Priority support
- Advanced analytics
- Custom integrations
FAQ
Answers for teams evaluating ChatterBox VOCAL
These answers are also available to search engines through FAQ structured data.
What is ChatterBox VOCAL?
ChatterBox is the public brand. VOCAL is the ChatterBox product: an AI phone call API for creating outbound voice agents that can complete structured phone-call tasks.
Can VOCAL work with my existing AI assistant?
Yes. VOCAL is exposed as an API and assistant skill, so tools such as OpenClaw, Open Claw, Hermes, Claude Code, or a custom assistant can trigger phone calls.
What business calls are a good fit?
VOCAL is built for B2B-first workflows such as sales demo scheduling, customer follow-up calls, vendor coordination, appointment changes, status checks, and other calls with a clear objective.
How do developers track call status?
The API supports call creation, server-sent event streaming for live status, webhook delivery for final results, and dashboard review when a webhook is not configured.
Does VOCAL replace my CRM or support system?
No. VOCAL is designed to plug into the systems you already use by sending structured outcomes back through API responses, webhooks, and assistant workflows.
Build your first assistant phone call workflow with ChatterBox.
Create an account, review the API docs, or download the skill to connect VOCAL to an assistant that can place outbound business calls.