On-Chain DCA: How DeFi Is Automating Crypto SIP

On-chain DCA uses smart contracts deployed on blockchains to execute recurring cryptocurrency purchases automatically, without custodial intermediaries. Protocols like Mean Finance, Bitflow, and Fraxswap allow users to deposit funds, set investment parameters (token pair, frequency, amount), and let the contract execute purchases at each interval using keeper networks or TWAMM mechanisms. While on-chain DCA offers non-custodial transparency and MEV resistance, it introduces smart contract risk, gas cost friction, and regulatory ambiguity in jurisdictions like India where DeFi protocols operate in a grey area under PMLA/VDA regulations.