The official SDK for the Substrate API
Wallets connector for Substrate DApps
Client library for Substrate Telemetry
Substrate for peer-to-peer real-time experiences between one host and N participants. WebRTC transport, lobby pairing, structured envelopes. Privacy-by-architecture; bring your own AI.
CLEO unified-graph Brain substrate — BRAIN + NEXUS + TASKS + CONDUIT + SIGNALDOCK projection
CAP Plugin: Midnight Blockchain Indexer with OData V4 API
The @airgap/astar is an Astar implementation of the ICoinProtocol interface from @airgap/coinlib-core.
The hyperclient SDK provides utilities for querying proofs and statuses for cross-chain requests from HyperBridge.
Cross-chain sdk core
BitGo SDK coin library for Substrate base implementation
A tree-shakeable library containing common reusable components for substrate based chains
ibgib library with low-level graphing-related substrate functionality, e.g. creating raw ibgibs and transformations. node19+ needed for heavily-used webcrypto hashing isomorphically consumed in node and browsers (apps).
The Syncropel traversal cockpit — the shared grammar for navigating a substrate of records: Helm (the locator), Stage (the projection host), Deck (the one driving input), the frame stack, and the axis/shape lens. Source-blind and projection-blind: the hos
Deterministic utility substrate for the Zenith framework
Substrate Client is a JavaScript/TypeScript library that helps to interact with UniqueNetwork using simple methods instead of low-level API. With SDK you can mint collections and tokens, manage account balance, etc.
Lorena Substrate integration library
Substrate gRPC interceptor library for the Nodii microservice stack — 8 cross-cutting interceptors (logging, audit, enrichAuthContext, tenantContext, auditContext, deadlineGuard, cancellationGuard, errorMap) + re-export façade over @nodii/grpc-auth/saga/i
FROST DKG and signing using Hubert as the distributed substrate
This TypeScript package provides low-level bindings to the Substrate JSON-RPC Interface , enabling interaction with Substrate-based blockchains.
FDE agent substrate — A2A contract, ports, LangGraph agent runtime shell
Substrate observability library for the Nodii microservice stack — OTel wrapper, log envelope, intent lifecycle, audit signal, agent registry, context propagation. Spec: planning hub docKey=telemetry.
Governance substrate for AI coding agents — adversarial PR review, drift-detected rules, tamper-evident audit, and closed-loop outcome routing for Claude, Codex, Gemini, and OpenCode
Garden-citizen dispatch substrate and meta-bridge for Claude Code, Codex, Antigravity, and pi harnesses.
Tamper-evident, append-only transparency log + verification SDK for the Metamorphic platform: RFC 6962/9162 Merkle proofs, C2SP tlog-tiles substrate, witnessed checkpoints, hybrid post-quantum checkpoint signing, and CONIKS-style index privacy. Single sou