Privacy infrastructure SDKs for institutional-grade DeFi — Universal Private Pool, Universal Private Compliance, Universal Private Dollar, and Universal Private Helpers.

Permissionless Technologies — Developer Hub

Build privacy-preserving DeFi with our vertically integrated SDK stack. Each package is independently installable, tree-shakeable, and built on the modern Ethereum stack (viem/wagmi).

All packages under @permissionless-technologies

npm install @permissionless-technologies/upp-sdk
npm install @permissionless-technologies/upc-sdk
npm install @permissionless-technologies/upd-sdk

Our SDKs

UPP — Universal Private Pool

Privacy layer for any ERC20 token. Shared anonymity pool with SNARK and post-quantum STARK proofs, stealth addresses, and compliance-ready ASP verification.

UPC — Universal Private Compliance

Pluggable ZK compliance framework. ASP (Association Set Provider) infrastructure with PLONK proofs over BLS12-381, IAttestationVerifier interface, and on-chain registry.

UPD — Universal Private Dollar

Non-freezable stablecoin SDK. $1 peg, stETH collateral, StabilizerNFT system. No admin keys, no blacklist. Works with any wallet or protocol.

UPH — Universal Private Helpers

Audited cryptographic primitives. Solidity libraries for M31 field arithmetic, FRI verification, and PLONK. TypeScript utilities for Merkle trees and Poseidon hashing.

Architecture Overview

@permissionless-technologies/
├── upp-sdk          # Privacy pool — shields any ERC20
│   └── depends on: upc-sdk (for ASP compliance)
├── upc-sdk          # ZK compliance — pluggable ASP framework
├── upd-sdk          # Stablecoin — non-freezable $1 peg
└── uph              # Cryptographic primitives (planned)

All packages: TypeScript, ESM, strict mode, viem/wagmi, AGPL-3.0-or-later.

Quick Links

Permissionless Technologies overview — vision, mission, product family
UPP Quickstart — privacy in 5 minutes
UPC Quickstart — ASP compliance in 5 minutes
UPD Quickstart — stablecoin SDK in 5 minutes
Glossary — key terms defined

Developer Hub