> For the complete documentation index, see [llms.txt](https://docs.onyx.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.onyx.org/onyx-defi/testnet-defi.md).

# Testnet DeFi and Slingshot

Slingshot is the DeFi interface for Onyx Testnet, Chain ID `8901`. It is separate from Onyx Mainnet and is intended for testing. Current access details are announced through official Onyx channels.

The interface exposes [Swap](/onyx-defi/testnet-defi/swap.md), [Bridge](/onyx-defi/testnet-defi/bridge.md), [Migrate](/onyx-defi/testnet-defi/migrate.md), and [Yield](/onyx-defi/testnet-defi/yield.md). Availability, liquidity, faucet delivery, and relayer operation are best-effort and can change without Mainnet guarantees.

Testnet XCN and test tokens have no Mainnet value. Verify the wallet shows Chain ID `8901` before signing.


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