Testnet TACo Program

Testnet domains

To run TACo on testnet, it needs to be configured to use one of the two available domains:

import { domains } from '@nucypher/taco';

domains.DEVNET  // "lynx" network
domains.TESTNET // "tapir" network

• DEVNET domain, or lynx, is a bleeding-edge developer network that supports upcoming taco release.

• TESTNET domain, or tapir, is a stable testnet environment that supports the current taco release.

We encourage you to use the TESTNET domain for developing taco based apps, and to use DEVNET to test compatibility with the upcoming taco release and new, experimental features.

Both DEVNET and TESTNET domains are unsuitable for use in a production setting. Testnet domains have no trust minimization or stability guarantees, which makes them unfit for production or real-world data payloads. Learn more about this in the trust assumptions section.

Testnet configuration

Domain	Network	L1 (chain id)	L2 (chain id)	Open ritualID	Cohort
DEVNET	lynx	Sepolia (11155111)	Amoy (80002)	27	2-of-3
TESTNET	tapir	Sepolia (11155111)	Amoy (80002)	6	3-of-5

Open ritualID refers to a DKG cohort & public key with no restrictions on encryptors – i.e. any device or address can use the public key to encrypt data. See the encryptor allowlist section to learn more.

Contracts

The source code for contracts used on testnet can be found in nucypher/nucypher-contracts repository.

Contract addresses for testnets can be found in their respective contract registries:

• lynx.json

• tapir.json