> ## Documentation Index
> Fetch the complete documentation index at: https://docs.guppyapi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Design Principles

> The philosophy behind Guppy

Guppy is built on a few core beliefs about the future of commerce and agents.

### Stateful by Default

In the real world, transactions aren't instantaneous. Inventory flickers, prices change, and queues happen. Guppy's stateful intents allow agents to express goals that persist over time.

### Execution-Agnostic

The web is fragmented. Some merchants have great APIs; others have legacy UIs. Guppy abstracts this away, routing execution through the best available path—whether that's a direct API call or a browser-based workflow.

### Payment-Safe

Giving an agent spend authority is high-risk. Guppy minimizes this risk with constrained, delegated spend. Charges are tied 1:1 to intents and never exceed user-defined guardrails.

### Proof-First

Every action taken by Guppy is verifiable. We provide cryptographic proof, merchant receipts, and execution artifacts (like screenshots) for every transaction.