> ## Documentation Index
> Fetch the complete documentation index at: https://developers.nlpearl.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Welcome to NLPearl
> Build and deploy AI agents - voice agents that handle real phone conversations in 20+ languages, and text agents across SMS, WhatsApp, email, and chat - all by simply chatting with AI.
## What is NLPearl?
NLPearl is an AI agent platform that lets you create, deploy, and manage AI agents that hold real conversations with your customers - inbound and outbound, at scale.
Our flagship **AI voice agents** handle real phone conversations, built on a proprietary speech-to-speech architecture that delivers natural, low-latency, full-duplex voice in 20+ languages. With **Pearl Text**, you can also deploy AI text agents across SMS, WhatsApp, email, and chat - and connect both for continuous, cross-channel customer experiences.
PearlVibe - your AI agent engineer - builds your agents, configures their logic, and connects them to your tools automatically.
AI voice agents that handle real phone conversations - inbound and outbound - in 20+ languages.
AI text agents that message your customers across SMS, WhatsApp, email, and chat.
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## Example Use Cases
### Inbound
| Use Case | Description |
| --------------------------------------- | ------------------------------------------------------------------------------------------------------------ |
| **Inbound Call Handling** | Answer incoming calls, resolve questions, collect information, and route to the right team - 24/7, at scale. |
| **Technical Support & Troubleshooting** | Guide customers through issue resolution step by step, collect diagnostic info, and escalate when needed. |
| **Order Tracking & Status Inquiries** | Let customers call to get instant updates on their order, shipment, or delivery status. |
| **FAQ & Knowledge Base** | Handle high-volume repetitive questions automatically without tying up human agents. |
| **Complaint Handling** | Capture customer complaints, collect context, log them in your CRM, and route to the right team. |
| **Returns & Refunds Processing** | Walk customers through return or refund requests, collect required details, and initiate the process. |
| **Account Management** | Handle address changes, subscription updates, password resets, and account inquiries via voice. |
| **Appointment Scheduling** | Book, confirm, and reschedule appointments from inbound calls with real-time calendar integrations. |
| **Customer Onboarding** | Welcome new customers, collect required information, and walk them through next steps automatically. |
| **Job Candidate Screening** | Pre-qualify candidates, ask screening questions, and schedule interviews automatically. |
| **Internal Operations** | Automate internal workflows - HR surveys, team reminders, shift confirmations, or field report collection. |
### Outbound
| Use Case | Description |
| --------------------------------------- | -------------------------------------------------------------------------------------------------------------- |
| **Outbound Sales & Prospecting** | Call leads, qualify prospects, pitch your offer, and book meetings. |
| **Lead Qualification** | Pre-qualify leads through dynamic conversations, score them with variables, and sync results to your pipeline. |
| **Appointment Reminders** | Send reminder calls ahead of scheduled appointments to reduce no-shows by up to 70%. |
| **Payment & Billing Follow-ups** | Automate payment reminders, invoice confirmations, and collections calls. |
| **Debt Collection** | Run personalized collections outreach, capture promises to pay, and log outcomes in your CRM. |
| **Post-Service Follow-up** | Check in after an intervention, measure satisfaction, and trigger upsell or renewal flows. |
| **Re-engagement Campaigns** | Reach out to inactive customers, revive abandoned carts, or reactivate dormant accounts. |
| **Upsell & Cross-sell Calls** | Proactively offer upgrades, add-ons, or complementary products after a purchase or at renewal time. |
| **Warranty & Renewal Reminders** | Notify customers when a contract, subscription, or warranty is about to expire. |
| **Event & Webinar Registration** | Invite, confirm registration, and send reminders ahead of events or webinars. |
| **Order Status & Delivery Updates** | Proactively notify customers of order confirmations, shipping updates, or delivery issues. |
| **Product Recall & Compliance Notices** | Reach affected customers with regulatory or safety notices at scale. |
| **Loyalty & Retention Programs** | Call at-risk customers, offer incentives, and collect churn feedback before it's too late. |
| **Alert & Notification Calls** | Trigger outbound calls for critical events - fraud alerts, order status updates, or system incidents. |
| **Emergency & Crisis Notifications** | Broadcast mass alert calls for outages, incidents, or urgent operational situations. |
***
## How It Works
Use PearlVibe to define your agent type, personality, knowledge base, conversation logic, and connected actions - while seamlessly integrating your tools - all through a prompt-driven interface.
For voice, assign a phone number or connect your own SIP-compatible VoIP provider. For text, connect your messaging channels (SMS, WhatsApp, email, chat). Then launch inbound lines or outbound campaigns - your agent starts handling real conversations immediately.
Track performance with real-time analytics, review post-call and post-chat transcripts and summaries, and iterate on your agent's behavior.
***
## What You Can Do
### Build Your Agent
Design your agent's type, personality, knowledge, conversation flow, and actions, while seamlessly integrating your tools - all from a single prompt-driven interface.
Collect, store, and manipulate data during conversations - from user inputs to CRM lookups.
Execute real-time actions mid-call: API requests, call transfers, emails, and SMS.
### Deploy & Connect
Deploy agents on inbound lines for support or launch outbound campaigns to reach leads proactively.
Push call events and data to your systems in real time.
Choose from 20+ languages and a wide selection of natural-sounding voices.
### Monitor & Optimize
Track success rates, sentiment, call duration, cost breakdown, and more from a unified dashboard.
Access structured summaries, transcripts, recordings, and extracted variables for every call.
***
## Next Steps
Go from sign-up to your first live call in minutes.
Integrate NLPearl programmatically via our REST API.
***
## Stay Connected
Connect with experts and peers for updates, support, and knowledge sharing.