I pay per message I send.
Official WhatsApp Business Platform charges per 24h session or per template. For an agency with average volume, that becomes hundreds of dollars per month — before closing a single deal.
Evo API by ADS4PROS · GoHighLevel Plugin
WhatsApp for your GoHighLevel at $2.97 per number / month. Install in minutes.
The cheapest WhatsApp + GHL integration on the market. Forked from the open-source green-api project and adapted to Evolution API. Multi-tenant: as many WhatsApp numbers as you want per sub-account, $2.97/month each, billed automatically through Stripe inside GHL itself.
⚡ No per-message fee. No send limit. No contract lock-in.
The pain this plugin solves
WhatsApp + GHL today is expensive and slow to install.
Each sub-account takes days to go live.
Setting up Twilio, Vonage or LeadConnector for a new GHL client requires forms, Meta approval, number, verification. The agency pays in time what it saves in messages.
Every client wants their own number, and GHL doesn't help.
You have 30 sub-accounts. Each wants a dedicated WhatsApp with the client's name. Native GHL doesn't provision instances per sub-account — you have to orchestrate it elsewhere.
What the plugin delivers
Four pieces, one single WhatsApp flow inside GHL.
1-click OAuth straight from the Marketplace
Client hits "Install" on the GHL Marketplace, authorizes, and the plugin is live in their sub-account. Tokens encrypted at rest, automatic refresh, zero code on the client side.
N Evolution instances per sub-account
Multiple Evolution instances per sub-account, created on demand when the client clicks "Buy" inside the GHL Custom Page. Stripe handles recurring billing, you manage WhatsApp.
WhatsApp ↔ GHL conversation/contact in real time
Message landing on WhatsApp becomes a contact + conversation in GHL. Message dispatched from GHL (workflow, manual, automation) goes out through WhatsApp. Text, image, audio. Webhook dedup via EventLog.
Management screen inside GHL itself
No external panel: client connects, disconnects, scans QR code and sees instance status inside GHL through native iframe. Feels like a first-party plugin.
How it works
Four steps from install to first synced conversation.
- Passo 01
Client installs the app on the Marketplace
"Install" button on the GHL Marketplace listing. OAuth callback stores tokens. Sub-account now has Evo API live.
- Passo 02
Connects number via QR code
Plugin asks to scan WhatsApp QR code. Adapter spins up an Evolution Instance dedicated to that sub-account. Connection persisted.
- Passo 03
Messages flow both ways
Client sends WA → becomes a conversation in GHL with contact. GHL workflow fires message → goes out through WhatsApp. Everything logged.
- Passo 04
Automatic billing per connected number
$2.97 per connected number, per month. No per-message fee, no idle SLA to track. Pay only for the clients that actually went live.
Why not the official version
Cost and flexibility comparison.
Criterion
Official WhatsApp Business
DIY Evolution
Evo API by ADS4PROS
Base price
~$0.05 per message
VPS + own maintenance
$2.97 per number/month
Per-send fee
Yes (24h session/template)
No
No
Multi sub-account on GHL
Manual per sub
Manual
Auto via ZapFlow
Marketplace install
Several steps
No
1-click OAuth
Server maintenance
Provider handles
You handle
We handle
Total cost for 30 sub-accounts
From $1,500/month
Dev hours
$89/month
Frequently asked
What people ask before closing.
How long until I see results?
Diagnosis in 21 days. Foundation in 30-45 days. Measurable result in paid media usually between 60-90 days. If your case is faster or slower, we say so during diagnosis.
Are you an agency or a consultancy?
Both. We sell growth advisory — think consultancy with hands on operation. We don't outsource: every project has a dedicated senior team.
Do you work with any niche?
No. Focus on established businesses with relevant average ticket (clinics, law firms, B2B industry, margin e-commerce). If your case doesn't match, we say so during diagnosis — no time wasted.
How do you charge?
One-time setup + fixed monthly retainer per scope of operation. No media percentage, no commission. You know the operation cost before starting.
What's the difference vs. a traditional agency?
Traditional agencies sell media and charge a percentage of media — perverse incentive for you to spend more. We sell revenue predictability and charge by scope. The more efficient your media, the better for you.
Ready to plug in
Installs in minutes. Costs cents. Syncs in seconds.
Evo API by ADS4PROS is available on the GHL Marketplace. No trial, no catch — at the price of a coffee subscription.