We're excited to announce that Rumble Fish has been awarded a $55,000 grant from the Stellar Community Fund (SCF #42) to build a Prices API - a unified, standardized data infrastructure layer for real-time and historical price information across all Stellar assets, both classic and SEP-41 Soroban tokens.

This is our second grant from the Stellar Community Fund, following the $131,200 award from SCF #41 to build the Soroban-first Block Explorer. Together, they reflect a clear direction: Rumble Fish is here to build the infrastructure that makes the Stellar ecosystem stronger, more transparent, and more developer-friendly.

What Problem Are We Solving?

Today, price data on Stellar is scattered. Different applications pull from different sources, use different formats, and cover different assets, creating a fragmented landscape that makes life harder for everyone building on the network. For a DeFi protocol, this means unreliable inputs that can affect the accuracy of trades and liquidity calculations. For a portfolio tracking tool, it means incomplete or inconsistent data that erodes user trust. For a developer building anything price-sensitive, it means spending weeks solving an infrastructure problem that should already be solved.

The Prices API is built to eliminate that fragmentation, providing a single, standardized source of price data covering all Stellar assets, both classic and Soroban-based.

What the Team Says

Marek Kowalski, CEO of Rumble Fish, sees the Prices API as a natural complement to the team's broader work in the Stellar ecosystem:

"Price data is one of those things that every serious DeFi application needs, but that nobody wants to build from scratch. The fragmentation on Stellar today creates real friction for developers. With this API, we're building something that can become shared infrastructure for the whole ecosystem."

What This Means for the Stellar Ecosystem

Price data infrastructure might not be the most visible part of a blockchain ecosystem, but it's one of the most critical. Every DeFi protocol, every analytics dashboard, every portfolio application depends on it. When that layer is fragmented and unreliable, the applications built on top of it suffer - and so does adoption.

By delivering a unified Prices API with 8+ years of historical coverage, real-time ingestion, and production-grade reliability, Rumble Fish is giving Stellar developers a foundation they can actually build on. The kind of infrastructure that turns good ideas into real products. You can explore the full architecture documentation on GitHub and track the project's progress on the Stellar Community Fund. If you're building on Stellar and need a technical partner who knows the ecosystem inside out, our team is ready to help - get in touch.