Good AX

Integration-Ready APIs

Supabase

Supabase's well-defined APIs let vibe-coding apps create and manage projects without user involvement, leading to massive growth.

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Supabase has been one of the biggest winners of the vibe-coding era, for a simple reason: they have a great ‘Agent Experience’ (AX). In this case, it mainly means they have great APIs that allow for easy integrations with other AI-based tools.

A lot of developer tools (and, tools in general) require users to log in and click around extensively to make things happen. In his talk at YC Startup School, Andrej Karpathy highlighted this, using excerpts from the docs of Clerk, an authentication provider, as an example:

Screenshot of a slide from Andrej Karpathy's YC Startup School presentation with the title "The Problem" showing Clerk authentication setup interface with multiple buttons, dropdown menus, and configuration options that require extensive manual clicking, demonstrating why this approach is difficult for AI agents to automate Source: Andrej Karpathy YC Startup School Talk

Since setup requires lots of clicking and buttons, this is extremely hard for agents to execute on their own. Some companies have started to realize this, and are actively working toward replacing ‘clicks’ or other user-centric steps, with agent-friendly options based on code.

Screenshot of a slide from Andrej Karpathy's presentation titled "The Solution" showing code examples of API-based setup with curl commands and configuration files, demonstrating how agent-friendly tools can be provisioned programmatically without manual user interaction Source: Andrej Karpathy YC Startup School Talk

In contrast, Supabase got this right from the start. In addition to being user-friendly, Supabase’s tools are also agent- and integration-friendly, allowing for setup and provisioning directly via APIs and code, without requiring humans to click around at all.

As a result, Supabase quickly saw the benefits of prioritizing Agent Experience (AX) as it became the preferred database provider for a wide range of vibe coding tools:

Bar chart or data visualization from an X post showing Supabase's rapid adoption growth, displaying statistics about how many vibe-coding tools and AI agents have integrated with Supabase as their database provider, with trend lines indicating significant upward growth Source: X Post

In fact, all of the vibe-coding tools except Replit (who has a database offering of their own) integrated with Supabase.

Comparison table showing database provider integrations across multiple vibe-coding tools, with Supabase listed as the provider for most tools including Cursor, v0, Aider, and others, while Replit is shown using its own database solution Source: Product Growth by Aakash Gupta and Colin Matthews

This also pushed Supabase’s valuation to extraordinary heights:

News headline graphic with green background and white text announcing "Vibe coding helps Supabase nab $200M at $2B valuation just seven months after its last raise" Source:TechCrunch

This is noteworthy because it proves an important point: Good AX and investment in full-featured APIs can create a lot of enterprise value!

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