---
title: What are “scopes” and why do they matter?
description: "Scopes are permissions that control what an agent key can do. Each tool requires a specific scope, so you can grant an agent exactly as much power as you want -- no more. The scopes are: - **read_only** -- view-only:…"
url: "https://www.bananacrystal.com/faq/what-are-scopes-and-why-do-they-matter/"
updated: "2026-07-27"
category: "AI Agents & MCP Tools"
---

# What are “scopes” and why do they matter?

Scopes are permissions that control what an agent key can do. Each tool requires a specific scope, so you can grant an agent exactly as much power as you want -- no more. The scopes are:

- **read_only** -- view-only: balances, transaction history, exchange rates, profile, limits, and browsing offers/trades. No money moves.
- **transfer** -- send tokens to other users.
- **swap** -- swap between currencies.
- **offers** -- create/engage/cancel offers and trades (prediction markets).
- **fiat** -- fiat operations (deposits, withdrawals, KYC) -- these also require verified KYC.

A read-only key can look but never move funds. Give an agent only the scopes it needs.