Twelfth Wave of Nostr Grants

We are pleased to announce our latest wave of grants supporting the nostr ecosystem as it evolves to become more versatile and resilient. At the heart of this evolution is a diverse set of tools that strengthen nostr's utility, from secure key management and signing workflows to decentralized collaboration and user-centric relay experiences.

This round of funding features five first-time grants for projects advancing the protocol in identity management, secure signing, decentralized collaboration, relay discovery, and cross-protocol integration:

• Frostr
• Aegis
• Gitplaza
• Jumble
• Atomic Signature Swaps

In addition, we've also renewed funding for four projects that continue to make critical contributions across the nostr ecosystem:

• Damus
• Camelus
• Nostromo
• Nostroots

This support is made possible by donors who believe in an open, censorship-resistant communications layer for the internet—and the builders who are making that a reality.

Our nostr grants are sourced from The Nostr Fund. To help us support the nostr ecosystem, please consider making a donation.

Let's dive in to learn about how each project is contributing to the future of nostr.

Frostr

Frostr is a threshold signing protocol tailored for nostr, built on the FROST (Flexible Round‑Optimized Schnorr Threshold) signature scheme. It provides security by splitting a user's nsec key into distributable shares across devices or services, enabling threshold‑of‑n signing with strong fault tolerance. Frostr leverages nostr relays to coordinate signing: each share maintains its own nostr identity and exchanges encrypted direct messages via nostrp2p, allowing seamless, background coordination over any relay. With libraries like Frost, Bifrost, and nostrp2p nearly complete and clients such as Igloo, Frost2x, Heimdall, Frostbite, and Permafrost under development, Frostr already enables multi-device signing, key rotation, and share replacement—crucial features nostr users need for secure, flexible identity management.

With support from this grant, Frostr aims to reach full maturity over the next year. In the next phase, the project will finalize UX and releases for Igloo and Frost2x, then build out Heimdall (REST‑API signing), full mobile support via Frostbite, and self‑hostable signing with Permafrost. It will integrate a NIP-46 bridge for compatibility with remote‑signing workflows, complete a security audit, and introduce advanced features like sign_psbt for interactive bitcoin p2p protocols over nostr. These enhancements will help to solidify Frostr as the standard for resilient, multi‑device, and interoperable key management and signing in the nostr ecosystem—enabling private identity recovery, remote signing, and the groundwork for next‑gen protocols like coinjoins, and Payjoins over nostr.

Repositories: FROSTR-ORG/repositories
License: MIT

Aegis

Aegis is a lightweight, cross-platform nostr signer that offers a seamless and secure experience across mobile and desktop environments. Initially launched for iOS and available through TestFlight, Aegis enables persistent background connections, critical for maintaining uninterrupted signing sessions, especially on mobile devices. Built using Flutter, it supports a variety of connection methods and introduces simple nostr key management in a user-friendly interface. The project fills a gap in the nostr ecosystem by offering a signer that's actively maintained and easy to integrate.

With support from this grant, Aegis will expand to Android, macOS, Windows, and Linux platforms, bringing secure signing to a much broader user base. Development plans include multi-account support, a request history interface, and enhanced login options. The project will also explore user permission controls for more secure request handling. Long term, Aegis aims to become a reliable, device-agnostic signer for the nostr protocol, with continuous improvements made through community feedback and iterative development.

Repository: ZharlieW/Aegis
License: LGPL-3.0

Gitplaza

Gitplaza is a decentralized, desktop-based alternative to GitHub built on the nostr protocol. It enables issue creation, kanban board management, profile browsing, and repository viewing—all designed to function offline by storing data locally. By removing central points of control, Gitplaza addresses the systemic risks of censorship and data loss inherent in centralized code hosting. Its goal is to reimagine collaborative development as a resilient, user-sovereign process.

With support from this grant, Gitplaza will expand core functionality to include pull requests, notifications, search, upvoting, repo wikis, milestones, and release publishing—mirroring key GitHub features. Development will also include features like multi-account login, tagging, and richer activity feeds. Longer-term goals include integrating nostr-native tools like zaps, web-of-trust filtering, and ecash support, laying the groundwork for a robust, censorship-resistant hub for open-source collaboration.

Repository: dluvian/gitplaza
License: MIT

Jumble

Jumble is a nostr client designed for streamlined relay browsing and discovery. Available as a Progressive Web App (PWA), it supports relay feed browsing, relay set management, a minimalist interface, and efficient relay interactions—all while prioritizing user simplicity and relay diversity. After six months in development, Jumble delivers a stable user experience and remains a practical option for those exploring the growing landscape of nostr relays.

With support from this grant, Jumble will continue developing core functionality and promote relay network growth. Priorities include improved relay discovery—such as surfacing relays followed by your network, rating systems, favorites, and advanced search—and user experience upgrades like a richer post editor, bookmarks, emoji support, optimized feed loading, and better video playback. The roadmap outlines a year of focused development to refine usability, expand relay-centric features, and ensure the client keeps pace as more specialized relays come online.

Repository: CodyTseng/jumble
License: MIT

Atomic Signature Swaps

Atomic Signature Swaps over nostr is a protocol designed to enable the trustless exchange of Schnorr signatures using nostr events. By leveraging adaptor signatures, the project creates a cryptographic bridge between nostr, bitcoin (via Taproot), and Cashu, allowing for atomic swaps across these ecosystems. This mechanism unlocks new capabilities, such as allowing creators to monetize their content by getting paid to publish specific events, issuing automatic payment receipts, and facilitating decentralized peer-to-peer asset exchanges.

With support from this grant, the project will focus on developing a reference implementation that allows users to monetize their nostr accounts through sponsored notes paid for with Cashu. This initial work will serve to validate and refine the protocol's formal specification as a Nostr Implementation Possibility (NIP). Key milestones include creating a TypeScript library to facilitate adoption by other developers, integrating the protocol into popular wallets and clients, and actively promoting the protocol through educational outreach to encourage innovation and new use cases.

Repository: vstabile/sig4sats-script
License: MIT

This latest wave of grants reflects the growing maturity and momentum of the nostr ecosystem. Each of the newly funded projects expands what's possible with nostr—whether enabling multi-device identity recovery, decentralized code collaboration, streamlined relay discovery, cross-platform signing, or trustless payment flows. Together, they strengthen the core foundations of identity, coordination, and interoperability—critical infrastructure for a more resilient, user-controlled future.

At the same time, we're proud to continue supporting four returning projects that have delivered value to users and developers alike. These renewals recognize their ongoing impact and provide the resources needed to keep building, iterating, and hardening essential components of the nostr stack.

Including this round of funding, OpenSats is proud to have allocated more than $10MM to nostr projects since the creation of The Nostr Fund —marking an important milestone in our mission to support critical tools, infrastructure, and developers across the ecosystem.

This progress is made possible by the generosity of our donors. If you'd like to help sustain this work and support the builders shaping the future of online communication, please consider making a donation.