Convex MCP vs Supabase: Which is Better in 2026?
Choosing between Convex MCP and Supabase comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Supabase wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick. Pick Convex MCP if you need AI agents.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Convex MCP
AI coding assistant with direct access to your Convex backend
Best for you if:
- • You want aI coding assistant with direct access to your Convex backend
Supabase
Open source Firebase alternative
Best for you if:
- • You want full PostgreSQL access
- • You want generous free tier
| At a Glance | Supabase | |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | AI Agents | Data & Databases |
Rating | - | 4.6/5 |
Free plan | Yes | Yes |
Choose Convex MCP or Supabase?
Choose Convex MCP if
AI coding assistant with direct access to your Convex backend
- You want aI coding assistant with direct access to your Convex backend
- Your work is AI agents-shaped, not data & databases-shaped
Choose Supabase if
Open source Firebase alternative
- You want full PostgreSQL access
- You want generous free tier
- Your work is data & databases-shaped, not AI agents-shaped
| Feature | Convex MCP | Supabase |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | No ratings yet | ★4.6/5 233 reviews |
| Categories | AI AgentsDeveloper Tools | Data & DatabasesAPI Tools |
In-Depth Analysis
Convex MCP
AI coding assistant with direct access to your Convex backend
Convex MCP's free tier is generous for small teams with 1-6 developers, but the $25 per developer/month for the Developers tier is fair for startups needing security and compliance.
Key features
Supabase
Open source Firebase alternative
Supabase is the open-source Firebase alternative that developers actually want to use, Postgres database, authentication, storage, edge functions, and real-time subscriptions in one platform.
Watch out
Free projects pause after 7 days of inactivity: your app goes offline until someone visits it again. Not suitable for any production use, only for development and demos
Strengths
- +Full PostgreSQL access
- +Generous free tier
- +Open-source and self-hostable
- +Great developer experience
Weaknesses
- -Projects pause on free tier
- -Smaller ecosystem than Firebase
- -Less mature than alternatives
Key features
Pricing: Convex MCP vs Supabase
| Plan | Convex MCP | Supabase |
|---|---|---|
| Tier 1 | $0/month Free | $0 Free |
| Tier 2 | $25 per developer/month Developers | $25 Pro |
| Tier 3 | $2,500 monthly minimum Try Professional | $599 Team |
| Tier 4 | N/A | Custom Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on Convex MCP pricing and Supabase pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Convex MCP
Want the highest-rated option?
Supabase is rated 4.6/5. Convex MCP has no ratings yet.
Go with: Supabase
Value user reviews?
Convex MCP: no ratings yet. Supabase: 233 reviews (4.6/5).
Go with: Supabase
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Convex MCP is a AI agents tool. Supabase is in data & databases. Pick the category that matches your needs.
How important are ratings?
Supabase is rated 4.6/5; Convex MCP has no ratings yet.
Key Takeaways
Supabase
- Free tier available
- Our pick for this comparison
Convex MCP
- Better fit for AI agents
The Bottom Line
Supabase wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick.
Frequently Asked Questions
Is Convex MCP or Supabase better?
Supabase is rated in our evaluation. Both are freemium.
What are Convex MCP and Supabase used for?
Convex MCP: AI coding assistant with direct access to your Convex backend. Supabase: Open source Firebase alternative.
What does Convex MCP cost vs Supabase?
Convex MCP is freemium (free tier + paid plans). Supabase is freemium (free tier + paid plans). Visit their websites for detailed pricing.