Solana agent SDK — keypair + browser wallet, transfers, swaps, x402 exact scheme

Definity staking CLI — deposit SOL directed to a validator you choose (the direct: memo model), from a keypair, a Trezor (--trezor), a Ledger (--ledger), OR build-only (--owner) for offline/hardware/multisig signing, plus liquid-stake and unstake.

AuthenSee identity for autonomous agents: mint a P-256 keypair, register a zero-knowledge commitment, and authenticate to any AuthenSee provider — the server never sees your key.

RSA signature and verification utilities for signing Ethereum operations with an RSA keypair

AFAuth agent SDK — keypair, did:key, signed requests, protocol-aware builders

A wrapper around WebAuthn authentication verification as specified by the [W3C protocol](https://www.w3.org/TR/webauthn-2/#sctn-verifying-assertion). WebAuthn enables authentication via a keypair rather than a password, including Face ID, Yubico devices,

Writ agent SDK — Ed25519 keypair management, mandate-scoped assertion signing, and the X-Passport header for verified agent actions. Give your agents authority they can prove.

returns the user keypair message payload

MILL — Multi-Interface Login Layer. Zero-dependency Web Component for Nostr account access. Supports NIP-07, NIP-46, NIP-55, private key, read-only, new keypair, and optional Continue-with-Google cloud login.

The SDK for lyra, a Sui-native policy-aware AI treasury assistant: brain, local memory + storage, the policy/approval engine, and the Sui agent keypair + chain helpers

This extension generates a random [Nostr](https://github.com/nostr-protocol/) Keypair and copies it to your clipboard. It's a simple headless command that can be triggered from [Kunkun](https://kunkun.sh).

Generate public and private keypair using OpenSSL

Cross-app shared Oxy identity bridge for Oxy Expo apps. Commons (the identity vault) writes a single secp256k1 keypair; every same-device Oxy app signed with the shared release key reads it via a signature-protected ContentProvider, enabling silent "Sign

Client SDK for Skhema registered agents — local keypair generation, enrollment-token redemption, and proof-of-possession request signing (Agent Auth Protocol).

The edgeware CLI easily allows you to interact with a local or remote Edgeware node or any general substrate node. The api requires you to create a `.env` file with your keypair information, which will be described below.

The **only** OwlMeans package that ships authentication/authorization mocks. Tests in any other package may import from here when they need a fake authenticated identity, a deterministic Ed25519 keypair, or an in-memory `TRUSTED` resource. No other mocks

Fast and secure keypair generation and signing for Node.js

This package lets you encrypt and decrypt messages using a solana keypair

The base set of tests for all certificate and keypair storage strategies. Any Greenlock `greenlock-store-` plugin should be able to pass these tests.

Ed25519 did:iwacu: identity primitives — keypair generation, signing/verification, and encrypted recovery backups.