The Bitcoin ecosystem is undergoing a transformative evolution. Once seen solely as a decentralized store of value, Bitcoin now serves as the foundation for a growing universe of metaprotocols—layers of innovation built directly on its blockchain. From Ordinals and BRC-20 tokens to emerging standards like Runes and SNS, developers and users alike are unlocking new possibilities for digital ownership, expression, and decentralized applications.
At the heart of this innovation lies a critical need: robust, accessible, and open-source tooling. This is where Layer 1 Foundation steps in—not as a builder of protocols, but as a curator and enabler of the infrastructure that empowers others to build, explore, and transact.
Core Principle: Open Tools for a Decentralized Future
Layer 1 Foundation is committed to curating and supporting tools, technologies, and information for both users and developers working with Bitcoin-based metaprotocols. Our mission is simple: accelerate ecosystem growth by aggregating high-quality, open-source resources that lower barriers to entry and foster innovation.
We believe that public infrastructure should remain public. By supporting projects that prioritize decentralization, transparency, and accessibility, we help ensure that the future of Bitcoin remains open to all.
👉 Discover how open infrastructure is shaping the next wave of Bitcoin innovation.
Lifecycle Support for Metaprotocols
Building on Bitcoin requires tools that support every stage of a protocol’s lifecycle—from data indexing and inscription to exploration and wallet integration. Layer 1 Foundation identifies and promotes essential tooling across five key stages:
Indexer: Powering Data Accessibility
Reliable data is the backbone of any blockchain ecosystem. Indexers parse raw blockchain data into usable formats, enabling developers to build responsive applications, track assets, and monitor network activity.
Open Protocol Indexer (OPI)
OPI stands as the most widely adopted open-source indexing client for BRC-20 tokens. It plays a crucial role in decentralizing the indexing process—a foundational step toward a more resilient ecosystem. With support for advanced features like the BRC-20 Swap Module, Programmable Module, Runes, and SNS, OPI provides builders with future-proof infrastructure. Its built-in API support makes integration seamless, reducing development time and increasing reliability.
Unisat Indexer
Unisat offers a comprehensive suite of developer tools, anchored by its pioneering BRC20 indexer API. Co-created with Domo and co-maintained alongside Best in Slot, Unisat’s indexer has become a standard in the space. It enables developers to build everything from marketplaces to analytics dashboards, offering real-time access to BRC-20 data with high uptime and accuracy.
Inscriber: Enabling On-Chain Expression
Inscriptions are the lifeblood of Bitcoin’s digital renaissance. Whether it’s minting a JPEG, embedding code, or creating a token, inscribers make it possible to write data directly onto Bitcoin’s blockchain.
Chisel
Chisel is a powerful inscription service developed by Devaloft, one of the most respected names in the Ordinals community. It supports batch inscriptions, metadata editing, parent-child relationships between inscriptions, and even testnet inscriptions for development purposes. Most notably, Chisel allows users to inscribe on specific, unique sats—offering granular control over digital asset creation.
OrdinalsBot
One of the earliest inscriber tools available, OrdinalsBot remains a go-to option for creators. It supports inscriptions on specific sats, batch processing, and a wide range of file types—including text files and Markdown—making it ideal for developers and artists alike. Its simplicity and reliability have made it a trusted tool in the early days of the Ordinals movement.
Explorer: Transparency Through Discovery
Explorers provide visibility into the Bitcoin ledger, allowing users to track inscriptions, verify transactions, and discover rare digital assets. They are essential for both casual users and professional traders.
Ordiscan
Launched in early 2023, Ordiscan was among the first explorers dedicated to the Ordinals ecosystem. It enables users to explore inscriptions, rare sats, BRC-20 tokens, and Sats names. With plans to expand support to Runes and other metaprotocols, Ordiscan continues to evolve as a comprehensive discovery platform.
Ord.io
Ord.io offers an intuitive interface with an intricate cataloging system that makes finding specific types of sats and inscriptions effortless. Whether you're hunting for rare collectibles or verifying an asset's provenance, Ord.io delivers powerful search capabilities and clean visual presentation.
Best in Slot (BIS)
Best in Slot goes beyond basic exploration—it’s a full-featured aggregator for Bitcoin-native assets. Supporting Ordinals, BRC-20, and Runes, BIS provides advanced tooling for traders, collectors, and developers. It also powers backend infrastructure for hundreds of teams building on Bitcoin, including wallets, marketplaces, funds, and decentralized applications (dApps).
Wallet: Seamless User Interaction
Wallets are the gateway between users and the blockchain. They must be secure, intuitive, and capable of handling diverse asset types.
Oyl Wallet
Oyl Wallet is pioneering a new standard in user experience by introducing in-wallet trading—a feature previously unseen in Bitcoin wallets. With built-in marketplace aggregation, users can trade Ordinals, BRC-20 tokens, and other Bitcoin-native assets directly from their wallet interface. Currently in testnet, Oyl promises a frictionless experience when it launches on mainnet.
👉 See how next-gen wallets are redefining user interaction with Bitcoin assets.
Unisat Wallet
As a browser extension wallet, Unisat simplifies the management of Ordinals and BRC-20 tokens. It operates as a single-account wallet, meaning your Bitcoin and Ordinals share one address—making transfers easier and less error-prone. Users can also manage multiple accounts within the same extension, ideal for developers or power users.
Xverse Wallet
Xverse offers both browser extension and mobile app support, making it one of the most accessible wallets in the ecosystem. Designed with beginners in mind, Xverse separates Bitcoin and Ordinals addresses to reduce confusion—a thoughtful UX choice that enhances security and usability.
Frequently Asked Questions (FAQ)
Q: What is a metaprotocol on Bitcoin?
A: A metaprotocol is a set of rules layered on top of Bitcoin’s base blockchain that enables new functionalities—like NFTs (Ordinals), fungible tokens (BRC-20), or domain systems (SNS)—without modifying Bitcoin itself.
Q: Why are open-source tools important for Bitcoin’s ecosystem?
A: Open-source tooling ensures transparency, security, and community ownership. It prevents centralization of critical infrastructure and allows anyone to audit, improve, or build upon existing tools.
Q: What’s the difference between BRC-20 and Runes?
A: BRC-20 relies on JSON-based inscriptions to create fungible tokens but can lead to network congestion due to UTXO bloat. Runes, proposed by Casey Rodarmor, aims to offer similar functionality with more efficient UTXO management by integrating token operations directly into Bitcoin transactions.
Q: Can I use these tools without technical expertise?
A: Many tools—especially wallets like Xverse or explorers like Ord.io—are designed for non-technical users. However, indexers and some inscribers may require development knowledge.
Q: Is Layer 1 Foundation building its own protocols?
A: No. Layer 1 Foundation does not build protocols. Instead, it curates and supports existing open-source projects that strengthen the broader Bitcoin ecosystem.
Q: How can I contribute to these projects?
A: Most tools listed are open source. You can contribute via GitHub repositories, community forums, or by running nodes and providing feedback.
The Road Ahead
As Bitcoin continues to evolve beyond currency into a platform for digital innovation, the importance of foundational tooling cannot be overstated. From indexing raw data to enabling creative inscriptions and seamless wallet experiences, each component plays a vital role in shaping what’s possible.
Layer 1 Foundation remains dedicated to identifying, supporting, and promoting the tools that empower builders and enrich user experiences across the Bitcoin ecosystem.
👉 Join the movement—explore how you can build on Bitcoin’s expanding frontier.
By investing in public goods today, we ensure a more open, resilient, and innovative tomorrow—one satoshi at a time.