Where do I find my API key?
API keys can be generated instantly inside your Workspace Settings > API & Developer Keys tab.
KelBrix Developer REST API & Real-Time Webhook Catalog
Automate lead generation, trigger WhatsApp Business API broadcasts, and initiate AI phone call campaigns via simple REST API endpoints and webhooks.
No Credit Card RequiredInstant SetupSovereign Data Export
Supported Platforms & Channels
Google Gemini
WhatsApp
Facebook
Instagram
IndiaMART
Brevo
Bland AI
Vapi
Zapier
Make
Razorpay
Stripe
Quick Summary & Key Highlights
How do developers integrate with KelBrix APIs?
KelBrix provides clean RESTful APIs authenticated with secret Bearer API tokens. Developers can trigger lead extractions programmatically, send 0% markup Meta WhatsApp messages, initiate Bland.ai / Vapi voice calls, and receive real-time webhook payload events when deal pipeline stages update.
- Zero API Markup (BYOK): Connect your own official Meta WhatsApp Cloud API, Brevo, and Vapi keys. You pay providers directly at-cost with zero per-message or per-minute platform surcharges.
- Integrated B2B Discovery: Extract public commercial business records, official emails, and telephone contacts directly from Google Maps for lawful B2B sales research.
- Sovereign Data Control: Unlimited single-click CSV/JSON exports with row-level workspace isolation and zero contact reselling.
- Transparent Pricing: Free tier ($0 / ₹0 for 100 leads + 1 digital business card); Starter at $15 / ₹999/mo (3 seats); Pro Growth at $39 / ₹1,999/mo (10 seats); Agency at $99 / ₹4,999/mo (10 clients); and Enterprise Reseller at $180 / ₹14,999/mo (50 clients).
- Operator & Governance: Owned and operated by WMart Online Services, Mumbai, India, supporting compliant Meta Cloud API messaging and international TRAI/DND/TCPA regulations.
KelBrix starts completely free with 1 digital business card and CRM starter access for your first 100 leads.
Platform Highlights & Specifications
Product Specs
Overview
How do developers integrate with KelBrix APIs?
KelBrix provides clean RESTful APIs authenticated with secret Bearer API tokens. Developers can trigger lead extractions programmatically, send 0% markup Meta WhatsApp messages, initiate Bland.ai / Vapi voice calls, and receive real-time webhook payload events when deal pipeline stages update.
Key Specifications
Deployment ArchitectureAll-in-One Cloud SaaS / BYOK Options
Pricing ModelFree Plan (100 Leads) • Starter @ $15 / ₹999/mo
Key IntegrationsWhatsApp API/Web, Gemini AI, Bland, Brevo, Razorpay, Stripe
Target IndustriesSalons, Real Estate, Clinics, Agencies, Coaching
Scraper Sandbox
Try Scrape Leads in Your Niche Instantly
Enter any search niche and city below to run a real-time extraction simulation and preview direct client data.
REST API v1 & Webhooks
0% Lock-in Data Specs
KelBrix Developer API & Webhook Directory
Integrate lead generation, WhatsApp messaging, and AI calling directly into your custom apps and workflows.
curl -X POST https://api.kelbrix.com/v1/leads/extract \
-H "Authorization: Bearer KB_SECRET_KEY" \
-H "Content-Type: application/json" \
-d '{"niche": "Real Estate Brokers", "city": "Mumbai", "limit": 50}'Feature breakdown
Enterprise Integration Specs
RESTful Endpoints
Clean JSON endpoints for leads, contacts, messages, and calls.
Real-Time Webhooks
Receive instant HTTP POST callbacks when leads convert or deals close.
Zero Markup BYOK
Pass direct Meta and Vapi API tokens for 100% data sovereignty.
Target solutions
Developer Workflows
Custom SaaS & CRM Sync
Problem:
Siloed customer data across external ERPs.
Solution:
Sync leads automatically via KelBrix REST API and Webhooks.
Features Used:
REST API, Webhook Callbacks, Bearer Tokens
Outcome:
Zero manual data entry between systems.
Value comparison
Why Developers Choose KelBrix API Over Closed SaaS Platforms?
| Business Need | Separate Industry Tools | KelBrix Platform |
|---|---|---|
| Data Ownership | Locked inside proprietary database | Full JSON/CSV export & API access |
| API Usage Fees | Heavy per-request SaaS markups | 0% Platform API Markup |
| Language Support | Restricted SDKs | Universal cURL, Node.js, Python |
Interactive Playbook
Simulate Your Outreach Automation
Click a scenario to see how KelBrix automatically routes leads and launches WhatsApp outreach campaigns.
How does it work?
Click a workflow query to simulate how KelBrix replaces manual marketing tools.
KelBrix AI Advisor
OnlineInstead of copying numbers and chatting manually, KelBrix logs all conversations. You can sync your personal Web WhatsApp in 10 seconds or connect the official Meta API. Sales reps chat directly inside the shared CRM, and automations trigger follow-ups on template rules.
Outreach & Lifecycle Pipeline Flow
1. Lead Captured
Prospect scans digital visiting card or submits a form
2. Auto WhatsApp Message
Saves contact, triggers greeting brochure instantly
3. Rep Pipeline Routing
Leads automatically assigned to available sales reps
4. Systematic Follow-up
Auto-reminders trigger until prospect responds
Got questions?
KelBrix Developer API Frequently Asked Questions
What is the API rate limit?
Starter plans support up to 60 requests/min. Pro Growth, Agency, and Enterprise plans support up to 600 requests/min.
Are webhooks retried if our server goes down?
Yes. KelBrix automatically retries failed webhook deliveries up to 5 times with exponential backoff.
Pricing & Plans
Simple monthly subscription with zero hidden markups
Start free with the digital business card and CRM. Upgrade when you are ready to scale with WhatsApp broadcasts, campaign automation, team workspaces, or white-label reseller support.
0% Meta Cloud API Markup (BYOK)
100 Free Leads + 1 Digital Card
Official Meta Tech Provider (TSP)
0% API Markup SavingsBYOK Sovereign Engine
Calculate Your BYOK Savings vs. Legacy SaaS
See how much you save by connecting your own Meta WhatsApp API and AI calling keys with zero platform markup.
Estimated Annual Savings$6,240 (₹5,30,400)Estimated savings with KelBrix BYOK
15,000 / mo
1,000/mo50,000/mo100,000/mo
1,000 mins / mo
100 mins5,000 mins10,000 mins
Meta WhatsApp API: Official $0.009 rate vs. marked-up $0.035+ on legacy tools
AI Telephony: Direct $0.05/min Vapi rate vs. marked-up $0.18+/min dialers
Zero message taxes, zero minutes tax, zero platform revenue share
Monthly Cost Comparison (At Current Volume)
Marketplace / Legacy Platforms$705 (₹59,925) / mo
Includes typical 30%-50% SaaS per-message & per-minute markup
KelBrix BYOK (Direct Provider Cost)$185 (₹15,725) / mo
⚡ 100% Direct billing with Meta & Vapi — Zero platform tax
Monthly Net Savings$520 (₹44,200) / mo
Start BYOK Free →*Estimated calculation model based on typical 30–50% legacy SaaS provider markup models. Direct Meta Cloud API conversation rates vary by country and message category (marketing, utility, service) per published rates at developers.facebook.com/docs/whatsapp/pricing/ (as of October 2026). Direct Vapi platform base fee ($0.05/min) excludes third-party LLM token inference, TTS voice model, and carrier telephony costs billed directly at-cost by underlying providers.
Currency
Free entry
Free
Start with one free digital card, free CRM for the first 100 leads, and an AI Studio trial to test real demand. Printed physical NFC cards are available separately as a paid add-on.
Freeforever
1 digital card + AI Studio trial
- 1 User
- AI Studio trial
- 1 Digital Card
- 1 active AI Voice Chatbot (up to 100 leads)
- 100 free B2B Lead Scraper credits
WhatsApp-First Drip & Follow-up Automations
WhatsApp Shop & Catalog (Recover Cart)
Google Maps B2B Lead Extractor
30-Day AI Social Content Calendar
AI Voice Telephony & Auto-Calling
Zero-Markup BYOK Architecture (0% API Markup)
Multi-Tenant Agency Client Portals
Custom Domain White-Label Branding
Company seat
Starter
The value seat for company users who need CRM, WhatsApp-ready follow-up, email, AI calling, attendance, automation, and AI Studio without bundled provider markups.
$15/ month
Only $5/user per month
3 Team Seats Included
Customize Seats & Add-ons
Min 3
Min 1
3 users, 3 Digital Cards total.
- 3 paid user seats selected
- 2,000 AI Credits
- 3 Digital Cards (1 per user seat)
- 1 active AI Voice Chatbot per paid seat
- 500 B2B Lead Extractor credits/mo
WhatsApp-First Drip & Follow-up Automations
WhatsApp Shop & Catalog (Recover Cart)
Google Maps B2B Lead Extractor
30-Day AI Social Content Calendar
AI Voice Telephony & Auto-Calling
Zero-Markup BYOK Architecture (0% API Markup)
Multi-Tenant Agency Client Portals
Custom Domain White-Label Branding
🔥 MOST POPULAR
Pro Growth
Pro Growth
For scaling businesses needing 3 Workspaces, up to 10 Team Seats, UNLIMITED Auto-DM triggers, 1,000 B2B Google Leads/mo, and AI Voice Calling.
$39/ month
Only $3.9/user per month (22% cheaper per seat)
10 Seats + 3 Workspaces + Unlimited Auto-DM
Customize Seats & Add-ons
Min 10
Min 1
10 users, 10 Digital Cards total.
- 10 paid user seats selected
- 10,000 AI Credits
- 10 Digital Cards (1 per user seat)
- 3 active AI Voice Chatbots included
- 1,000 B2B Lead Extractor credits/mo
WhatsApp-First Drip & Follow-up Automations
WhatsApp Shop & Catalog (Recover Cart)
Google Maps B2B Lead Extractor
30-Day AI Social Content Calendar
AI Voice Telephony & Auto-Calling
Zero-Markup BYOK Architecture (0% API Markup)
Multi-Tenant Agency Client Portals
Custom Domain White-Label Branding
🎁Earn Free Leads Without Subscribing
Invite Fellow Sales Teams & Colleagues
Earn +250 free B2B leads for every business peer who signs up using your referral link. Up to 1,000 free leads.
Power Add-ons & Modular Expansion
Supercharge Your Sales Stack with Specialized Add-ons
Add modular capabilities to any plan without upgrading your core tier subscription.
Additional WhatsApp Channel
Multi-Number Expansion
Connect extra official WhatsApp phone numbers to your CRM. Run separate dedicated numbers for Sales, Support, Billing, or branches with isolated inboxes and catalogs.
- Connect 1 Extra Meta Cloud API or Web-Sync Number
- Dedicated Chat Inbox & Agent Assignment per Number
- Independent WhatsApp Catalog & Auto-Reply Drips
- Unified CRM Pipeline, Contacts & Analytics Sync
Monthly Add-on$19 / number / mo
Add ChannelsAdditional Lead Scraper Credits
On-Demand Lead Expansion
Extract verified business leads by city and niche on demand. Collect public phone numbers, official business emails, and addresses.
- Google Maps Business Directory Lead Extraction
- Verified GST, Phone, Email & Website Discovery
- 1-Click Auto Sync directly into WhatsApp CRM Pipelines
- Never-Expiring Lifetime Credit Booster Packs
Booster Packs From$10 / 1,000 leads
Add Credits0% Platform Markup
Direct billing with Meta & Vapi
Secure Encrypted
Razorpay & Stripe 256-bit SSL
GST Invoicing
100% Tax Credit Eligible
Cancel Anytime
No locked contracts or fees
Need a custom plan? Contact sales for enterprise-grade features and custom user, card, or client limits.
Ready to optimize?
Build Your Next Sales Automation on KelBrix API
Generate your free developer API token in 30 seconds. Start building with zero credit card required.