Make private Bitcoin payments with eNuts, a wallet that uses Cashu-powered electronic cash.
CDK
Cashu Dev Kit documentation explains an electronic cash system using Bitcoin-backed tokens and blind signatures.
About CDK
CDK (Cashu Dev Kit) is documented as a toolkit for building electronic cash applications with Cashu, a protocol that uses Chaumian blind signatures to create Bitcoin-backed ecash tokens. Its documentation covers introduction, use cases, adoption, examples and API reference. It focuses on implementing the Cashu protocol correctly, while leaving wallet choice, mint integration and application features to the developer.
CDK is described as lightweight and modular, so developers can use only the components they need. Cashu transactions are off-chain and are intended to enable instant payments without waiting for confirmations. It is built to work with the Lightning Network for funding and redemption. Pricing, geographic restrictions, user counts and guarantees about privacy or legal compliance are not stated.
Key features
- Implements Cashu protocol for Bitcoin-backed ecash tokens using Chaumian blind signatures.
- Off-chain transactions intended to preserve privacy by not revealing sender or recipient.
- Instant payments without waiting for blockchain confirmations.
- Lightning Network compatible for funding and redemption of Cashu tokens.
- Modular design lets developers use only needed components.
- Lightweight library focused on core Cashu operations for multiple platforms.
Best for: Developers building Cashu wallets, mints or services who need a lightweight, modular toolkit for Bitcoin-backed ecash and Lightning integration.
Good for
- Focuses on implementing the Cashu protocol correctly.
- Described as lightweight and modular for easier integration.
- Built for off-chain instant payments and Lightning funding or redemption.
Watch out for
- Listed as not open source.
- No repository link is provided.
- Pricing is not stated.
CDK at a glance
- Website
- cashudevkit.org
- Category
- Social & Communities › Nostr
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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CDK FAQ
What does Cashu Dev Kit do?
It provides a toolkit and documentation for implementing the Cashu protocol, which uses Bitcoin-backed ecash tokens and blind signatures.
Are Cashu transactions on-chain?
No. According to the documentation, Cashu transactions happen off-chain and don't reveal information about the sender or recipient.
Can CDK be used with Lightning?
Yes. CDK is built to work with the Lightning Network for funding and redemption, and Cashu tokens can be funded via Lightning payments.
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