docs: add Dune Sim to Data & Analytics section (#210)

Amp-Thread-ID: https://ampcode.com/threads/T-019d3f01-6cc2-724e-bb09-db1e42ac3cb0

Co-authored-by: Amp <amp@ampcode.com>

Author: joshitzko

src/pages/quickstart/developer-tools.mdx

@@ -136,6 +136,12 @@ Get started with the [Codex docs](https://docs.codex.io), explore the API with t
 
 Get started with the [CoinGecko API](https://docs.coingecko.com/reference/introduction).
 
+### Dune
+
+[Dune](https://dune.com) delivers real-time onchain data through the Dune Sim API, a low-latency interface for querying wallet balances, token prices, and account activity across multiple chains. Tempo is fully supported, giving developers instant access to account balances valued in USD, current token prices, and transaction history and activity — all reflecting the state of the chain at the exact moment of the query. This point-in-time accuracy makes the Dune Sim API well-suited for applications where data freshness matters, such as payment flows, portfolio dashboards, and real-time trading interfaces, without the need to manage any indexing infrastructure.
+
+[Sign up](https://sim.dune.com/) to get started with Tempo data, and explore the full API in the [Sim docs](https://docs.sim.dune.com/).
+
 ### Goldsky
 
 [Goldsky](https://goldsky.com) makes it easy to access real-time Tempo data with minimal maintenance. Goldsky offers two core products for indexing and streaming onchain data: