kitio.aiVisual Studio Code vs Mails.ai
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Visual Studio Code is completely free, while Mails.ai is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- AI agents that plan and code
- Model selection
- MCP support
- Extension marketplace
- Integrated terminal and debugger
- Web version
- Inbox per agent through one API call
- TypeScript and Python SDKs
- MCP server
- Injection scan on inbound mail
- Send from your own domain
| Feature | Visual Studio Code | Mails.ai |
|---|---|---|
| Best for | Free open-source editor with built-in AI agents for coding | Email API that gives AI agents their own inboxes |
| Category | Coding | Coding |
| Pricing model | Free | Freemium |
| Starting price | Free | $20/mo |
| Free plan | Yes, fully free | Yes |
| Made by | Microsoft | Mails.ai |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Visual Studio Code is completely free, while Mails.ai is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- 3,000 emails per month
- 3,000 inbound replies per month
- 1 agent
Pro
$20/mo
- 50K emails per month
- 5 agents
- Send from your own domain
- Signed webhooks
Scale
$99/mo
- 250K emails per month
- Unlimited agents
- Per-agent allowlists and send limits
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Visual Studio Code
- Free and open source
- Huge extension ecosystem
- Runs on all major desktop systems
- Heavier than lightweight editors
- AI features may need separate model access
- Extensions vary in quality
Mails.ai
- Free tier with no card
- Controls on who an agent can email
- Works with major coding agents
- Free plan allows just 1 agent
- Custom domains need Pro
- Dedicated IP is on request only
Which one should you choose?
Choose Visual Studio Code if you want:
- Free and open source
- Huge extension ecosystem
- Runs on all major desktop systems
Watch out: heavier than lightweight editors.
Choose Mails.ai if you want:
- Free tier with no card
- Controls on who an agent can email
- Works with major coding agents
Watch out: free plan allows just 1 agent.
Visual Studio Code vs Mails.ai FAQ
What is the difference between Visual Studio Code and Mails.ai?
Visual Studio Code: Free open-source editor with built-in AI agents for coding. Mails.ai: Email API that gives AI agents their own inboxes. Both are coding tools.
Is Visual Studio Code or Mails.ai cheaper?
Visual Studio Code is completely free, while Mails.ai is freemium.
Do Visual Studio Code and Mails.ai have free plans?
Visual Studio Code: Yes, fully free. Mails.ai: Yes.
Who makes Visual Studio Code?
Visual Studio Code is made by Microsoft, based in United States.
Who makes Mails.ai?
Mails.ai is made by Mails.ai.
Which should I choose, Visual Studio Code or Mails.ai?
Choose Visual Studio Code if you value free and open source and huge extension ecosystem. Choose Mails.ai if you value free tier with no card and controls on who an agent can email.