Tosnix Your AI Software EngineerShip securely with AI model inside VS Code

Tosnix understands your codebase, writes production-ready code, fixes bugs, runs tests, and automates development tasks using the best AI models. Pay only for what you use—no monthly subscription.

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tosnix — agent.ts
Tests passing
PR opened

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Multi-Model AI & Smart Routing

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VS Code Extension

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AI Coding Agent

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VS Code extension and web chat with every leading model. Same account, same billing, zero switching.

AI right inside your editor

Install the Tosnix VS Code extension and get inline completions, refactors, and an AI agent that reads your entire codebase — no copy-pasting required.

  • Reads every file & follows imports
  • Inline completions & chat sidebar
  • Targeted diffs, not full rewrites
  • Every action requires your approval
auth.ts — src/middlewareVS Code
auth.ts
api.ts
express.d.ts
1// Tosnix: Adding JWT auth middleware
2
3import jwt from 'jsonwebtoken';
4import { Request, Response, NextFunction } from 'express';
5
6export function authenticate(
7 req: Request,
8 res: Response,
9 next: NextFunction
10) {
11 const token = req.headers.authorization?.split(' ')[1];
12 if (!token) return res.status(401).json({ error: 'Unauthorized' });
13 try {
14 const payload = jwt.verify(token, process.env.JWT_SECRET!);
15 req.user = payload; next();
16 } catch { res.status(401).json({ error: 'Invalid token' }); }
17}
+9 lines added−2 lines removed
Capabilities

One AI platform for every
developer workflow

From AI chat to in-editor coding assistance, Tosnix helps you build faster with every leading AI model.

Full Codebase Understanding

Understands your entire project, follows imports and dependencies, and makes precise changes that fit your existing codebase.

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AI Agent Workflow

Breaks down complex tasks into steps, shows you the plan, then executes with precision. Never makes blind changes.

Every Leading AI Model

Switch instantly between GPT, Claude, Gemini, DeepSeek, Grok, Llama, Mistral, and more—all from one account.

Orchestrate multi-agents

Spin up sub-agents for parallel tasks. One agent codes, another reviews, another writes tests — simultaneously.

Autonomous terminal access

Runs shell commands, installs packages, starts servers. All with your explicit approval before each action.

Commit clean, clear code

Writes descriptive commit messages, opens PRs with context, and maintains your coding style and conventions.

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Model Agnostic

Every Leading AI Model, One Platform

One account. Every leading AI model. Seamlessly available across Web Chat and the VS Code Extension.

ClaudeBest for coding
GPT-4oReasoning & creativity
GeminiLarge context
GrokReal-time web search
LlamaOpen-weight
MistralLightweight & fast
DeepSeekFast & efficient
QwenMultilingual
Command RRetrieval-focused
Phi-4Small but mighty

…and more leading models as they’re released.

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