Tools · Comparison
Mails.ai vs NxCode vs Sendmux
All three are code assistant tools. Here is what separates them.
| Mails.ai | NxCode | Sendmux | |
|---|---|---|---|
| What it is | Self-serve AI email API + MCP for agents. Per-agent addresses, per-agent reputation, native prompt-injection scanning on every inbound. | NxCode.io - AI app builder (not Apple Xcode). Build apps without coding in 2026. No-code AI app generator creates full-stack applications. Free app development platform for startups and founders. | Sendmux is an email API that gives every AI agent a real inbox. Send and receive, route outbound through your own providers, and fail over automatically. |
| Category | Code Assistant | Code Assistant | Code Assistant |
| Pricing | Freemium · $15 - $149/mo | Freemium | Freemium |
| How it bills | Flat monthly | Not published | Not published |
| Free tier | Yes | Yes | Yes |
| Rating | Not yet rated | Not yet rated | Not yet rated |
| Features | — | — | — |
| What works |
| — | — |
| What does not |
| — | — |