Welcome to Meridian
Meridian is a collaborative data analysis platform that makes working with data tan-times faster through real-time AI agents, streaming insights, and live-updating charts.Built for teams who need speed without sacrificing transparency. Every analysis is tracked, every insight is reproducible, and every query happens in real-time.
What Makes Meridian Different
Traditional data tools force you to choose between power and simplicity. Julius AI and ChatGPT are easy to use but lack collaboration and reproducibility. Traditional BI tools are powerful but require SQL expertise and hours of setup. Meridian bridges this gap:Natural Language Queries
Ask questions in plain English. AI agents translate your intent into optimized SQL queries and show you their reasoning step-by-step.
Live Collaboration
See teammates’ queries, charts, and insights update in real-time. No more waiting for batch processing or emailing screenshots.
Instant Analytics
DuckDB’s vectorized OLAP engine analyzes millions of rows in milliseconds. Server-side processing means no browser limitations.
Complete Transparency
Every query is logged with timestamps and results. Rollback to previous states. Understand exactly how insights were discovered.
Who It’s For
Product Teams
Product Teams
Upload user analytics CSVs, ask questions like “show me users who churned last month”, and share live-updating dashboards with stakeholders.
Data Analysts
Data Analysts
Write SQL queries with AI assistance, visualize results instantly, and collaborate with teammates without complex BI tool setup.
Research Teams
Research Teams
Upload experimental data, generate statistical insights automatically, and track every analysis step for reproducible research.
Business Teams
Business Teams
Extract data from web pages using Firecrawl integration, analyze trends with natural language, and export findings without technical help.
Key Value Propositions
1. Real-Time Collaboration
Powered by Convex, Meridian delivers true real-time updates:- Multiple users query simultaneously, all results sync instantly
- See query history and reasoning steps as they execute
- Live notifications when teammates discover insights or create charts
2. Transparent AI Reasoning
Unlike black-box AI tools, Meridian shows you exactly how it thinks:- Agents break down requests into executable steps
- Watch reasoning stream live: “Reading column X…” → “Computing statistics…” → “Found pattern Y”
- Every generated query is visible and editable before execution
3. Server-Side Performance
Built with TanStack Start and DuckDB Node API:- DuckDB runs server-side (not browser WASM) for 10x faster queries
- Columnar storage optimized for analytical workloads
- Analyze millions of rows without browser memory limits
4. Zero Setup Required
Technology Stack
Meridian combines best-in-class tools for maximum performance:| Component | Technology | Purpose |
|---|---|---|
| Frontend | TanStack Start + Mantine UI | Server-side rendering with React 19 and beautiful components |
| Backend | Convex | Real-time, type-safe serverless backend with subscriptions |
| Analytics | DuckDB (Node API) | Vectorized OLAP engine for instant query execution |
| Storage | Cloudflare R2 | Cost-effective file storage for uploaded datasets |
| AI Agents | Gemini 2.5 Flash + Convex Agent Component | Streaming text/object generation with tool calling |
| Data Extraction | Firecrawl | Turn any URL into structured CSV data |
| Billing | Autumn | Usage-based pricing with automatic metering |
The full stack is deployed on Netlify with Convex handling the backend. Authentication uses Convex Auth with support for Google OAuth.
Competitive Advantages
vs Julius AI
Meridian adds query reproducibility, streaming reasoning, and live team collaboration that Julius lacks.
vs ChatGPT
Meridian provides persistent analysis workflows, real-time team collaboration, and transparent reasoning instead of ephemeral chats.
vs Traditional BI
Meridian offers natural language queries, AI reasoning, and zero setup compared to weeks of configuration.
What You’ll Learn
This documentation covers:- Quickstart: Get up and running in 5 minutes
- Key Features: Deep dive into Meridian’s 10 core capabilities
- API Reference: Query editor, AI agents, charts, and insights
- Architecture: Tech stack, data flow, and integrations
Open Source and Community
Meridian was built in public and shipped on November 17, 2025. The project combines:- Modern React patterns (React 19, TanStack Router, TanStack Query)
- Real-time subscriptions (Convex presence API)
- AI agent orchestration (streaming with tool calls)
- High-performance analytics (DuckDB OLAP)
Meridian was shipped on November 17, 2025 and combines modern React patterns, real-time subscriptions, AI agent orchestration, and high-performance analytics.
Ready to Start?
Quickstart
Upload data, run your first query, and generate insights in 5 minutes
Key Features
Explore all 10 core features with real examples and code snippets