Polygon Launches Private Mempools

Name: Private Mempools Live
Start: 2026-04-02T00:00:00Z
End: 2026-04-03T00:00:00Z

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Polygon launched private mempools on April 2nd, allowing transactions to go directly to block producers and remain hidden from bots until finalization. The update is designed to prevent frontrunning and sandwich attacks with a single RPC change.

Event date: April 2, 2026 UTC

Polygon | POL
@0xPolygon

Any time you submit a transaction, it’s public. A bot sees it. Jumps ahead. You get a worse price.

We changed that. Private mempools are now live on Polygon.

All it takes is one RPC swap for full MEV protection. https://twitter.com/0xPolygon/status/2039664277360168964/photo/1

Polygon | POL
@0xpolygon

With one line of integration into existing infra, transactions can now go directly to block producers. Making them invisible to bots until finalized.

No frontrunning. No sandwich attacks.

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