Lending liquidity comes from the public. Anyone can lend on dYdX by clicking 'deposit' the 'Account' Page.

The ETH-DAI spot market currently comes from Eth2Dai.
The ETH-USDC and DAI-USDC market liquidity comes from Radar Relay which uses the 0x Protocol.

For additional pairs, dYdX will use other DEXs. If you are interested in market making / providing spot liquidity, please get in touch with us!

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