Maestro Open-sources the World’s First Fully Audited Bitcoin Indexer To Accelerate BitcoinFi Adoption
Austin, Texas, October 9th, 2025, Chainwire
- Symphony, audited by Thesis Defence, ensures high performance for MIDL network and secure data delivery for Bitcoin applications.
Maestro, the leading enterprise-grade BitcoinFi infrastructure provider, is proud to officially release Symphony, the world’s first fully audited Bitcoin indexer, now open-sourced. Symphony is a battle-tested software stack, purpose-built by Maestro and optimized to power large-scale applications processing billions of transactions. Symphony’s industry-leading performance comes from its modular, mempool-aware indexing mechanism, capable of supporting any metaprotocol standards such as BRC-20s, Runes, and Ordinals.
For years, Maestro has been developing in-house Bitcoin infrastructure rails designed to power global-scale financial applications running on Bitcoin. Today, Maestro’s Bitcoin middleware is used by businesses and corporations, leading the wave of Bitcoin adoption into traditional financial markets. Open-sourcing Symphony represents a big step towards making critical Bitcoin infrastructure available to everyone. Symphony’s GitHub repository gives developers the building blocks necessary to deploy new financial apps like lending, stablecoins, RWA tokenization, and more.
The emergence of metaprotocols has expanded Bitcoin from simple payments into a programmable chain, resulting in the recent rise of next-gen financial products. MIDL is one of these projects at the frontier of Bitcoin innovation. Their smart-contract execution engine enables native EVM dApps to run right on Bitcoin. Under the hood, MIDL integrated Symphony directly into its validator nodes to secure the network at the consensus level. MIDL leverages Symphony’s block reorganization protection mechanism, combined with its mempool-first indexing capabilities, to play a critical role in maintaining the network’s data integrity even during heavy congestion or chain rollbacks.
MIDL CEO Iva Wisher noted, “Maestro has been a reliable partner and a great team to collaborate with throughout the MIDL’s journey. Symphony is another major step towards the adoption of Bitcoin, but the Maestro’s potential definitely goes far beyond that. And we’re excited to scale the space up together.”
Symphony is audited by Thesis Defence, offering MIDL validators a secure and highly insured stack for chain consensus. Symphony will prove useful to developers and projects looking to launch metaprotocol-enabled apps faster, with high reliability, and full confidence in indexing accuracy:
- Developers: Gain a ready-to-use, battle-tested indexer instead of reinventing the wheel
- Startups & Enterprises: High-throughput and low-latency data source to bring their apps to life and scale reliably
- L2s: Bring native metaprotocol validation at the consensus node-level and significantly increase chain protocol security with the most advanced rollback protection.
“Symphony is the first audited Bitcoin indexer. We’re giving the Bitcoin developer community the same battle-tested infrastructure that powers Maestro’s platform and processes billions of API calls for our clients. Open-sourcing it is our way of giving back to the ecosystem and accelerating the adoption of Bitcoin metaprotocols,” said Marvin Bertin, CEO of Maestro.
Maestro’s infrastructure is already trusted by more than 1,000 developers and powers 250+ applications. By giving builders unrestricted access to the industry’s most advanced Bitcoin indexer, Maestro has reaffirmed its commitment to empowering developers and pushing forward the evolution of on-chain finance.
About Maestro
Maestro is the first enterprise-grade infrastructure provider tailor-made for Bitcoin DeFi. Its mission is to accelerate the world’s transition to the Bitcoin Economy by delivering a comprehensive, scalable infrastructure stack optimized for on-chain finance. By empowering developers and businesses with robust software tooling, Maestro is setting a new standard for how financial applications are built on Bitcoin, fueling the evolution of a decentralized, blockchain-native financial system.
Learn more: https://www.gomaestro.org/
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