Stop Building
AI Agent Infrastructure
Building AI agents from scratch means managing 6+ services, spending weeks on infrastructure, and ongoing maintenance. There's a better way.
The DIY AI Agent Stack
Here's what you need to build and maintain yourself:
LLM API
$0.15-15/1M tokensOpenAI / Anthropic
Core AI capability
Vector Database
$70-700/moPinecone / Weaviate / Qdrant
For RAG and knowledge bases
WhatsApp Integration
Setup + per-message feesMeta Cloud API / Twilio
Business API complexity
SMS Provider
$0.0079+/messageTwilio / Vonage
Another integration to maintain
Session Management
$25-200/moRedis / DynamoDB
Track conversation state
Orchestration Framework
Dev timeLangChain / Custom
Tool calling, routing, memory
Hosting & Infra
$50-500/moAWS / GCP / Vercel
Run your agent 24/7
Total: 6-10 services, $500-2000+/mo, 200+ dev hours
And that's just to get started. Maintenance, scaling, and updates are ongoing.
DIY vs Zavu: Feature Comparison
| Aspect | Zavu | Build Yourself |
|---|---|---|
| Time to first agent | 5 minutes | 2-8 weeks |
| Services to manage | 1 platform | 6-10 services |
| WhatsApp Business API setup | Included, instant | Days of Meta approval process |
| Vector DB setup | Upload docs, done | Provision, configure, embed |
| Session persistence | Built-in, automatic | Build custom solution |
| Human handoff | One-click transfer step | Build routing logic |
| Multi-channel support | Same agent, all channels | Integrate each separately |
| Ongoing maintenance | We handle it | Your responsibility |
The Hidden Costs of DIY
Infrastructure costs are just the beginning.
Developer Time
200-500+ hours to build, test, and deploy. At $100/hr, that's $20,000-$50,000 before your first customer conversation.
Maintenance Burden
API changes, security patches, scaling issues. Ongoing costs of 20-40 hours/month to keep everything running.
Integration Hell
WhatsApp Business API has complex webhooks, verification flows, and message templates. SMS requires 10DLC registration. Each channel is a project.
Compliance & Security
PII handling, data retention, GDPR compliance, audit logs. Building this properly takes significant effort.
Total cost: DIY stack vs Zavu
Building yourself means Twilio + OpenAI + hosting + database + queue. Zavu replaces all of it with one API.
Save 87% with Zavu ($781/mo)
Cost breakdown by channel
| Channel | Volume | Zavu | DIY Stack |
|---|---|---|---|
| 60,000 | Included | $540 | |
| SMS | 20,000 | $88 | $300 |
| 20,000 | $6 | $60 | |
| Zavu Hobby subscription | $25 | — | |
DIY costs include Twilio messaging ($0.011/SMS, $0.005/WhatsApp), OpenAI API (~$0.002/call), plus infrastructure amortized per message. Zavu SMS from $0.0044/msg. WhatsApp messages and AI agents included in Zavu plan.
Why Builders Choose Zavu
Ship in 5 Minutes, Not 5 Weeks
One API call to deploy an AI agent on WhatsApp. No Twilio + OpenAI + Pinecone + Redis stack to build.
Zero Infrastructure
We handle message delivery, vector search, session management, and failover. You write the prompt.
All Channels, One Integration
WhatsApp, SMS, Email, Telegram — your agent works everywhere from a single API.
Start Free, Iterate Fast
Free tier to prototype. $25/mo to go live. No upfront infrastructure costs eating your runway.
Time to Production
Building Yourself
With Zavu
Trusted by growing teams
Real results from real customers
“With Zavu's WhatsApp API we now reach 90% of our customers on the first attempt. Before, half our messages were lost to undelivered SMS.”
Alberto Valladares
CEO, Renee.cl
“We consolidated SMS, WhatsApp, and Email into one API. AI routing saved us 60% vs our previous provider stack.”
Nelyoly Alizo
CMO, Nely.ai
“Zavu unified WhatsApp, SMS, and AI agents into a single workflow. Response time dropped from hours to seconds.”
Ariel Vaisman
CEO, RendaloMAQ
Common Questions
Build Agents, Not Infrastructure
Focus on what makes your agent unique. Let us handle the messaging, vector DBs, session management, and multi-channel complexity.