Blast network (chain id 81457) shutdown
Shutdown date: 2026-10-28. No replacement named.
developers.uniswap.orgquote checked- model retirementfrom Blast network (chain id 81457)
- 2026-10-2810 days ago
- Your code1 thing to find
Nemotron fixes
In its own wordsmatches the page ✓
We are sunsetting swapping support for the Blast network (chain id 81457) on October 28, 2026. What is changing? Starting October 28, 2026, Uniswap will no longer support swapping on Blast. Quote requests for Blast will return a 404 with `errorCode: UnsupportedChainError` (see [Troubleshooting Common Errors](/docs/trading/swapping-api/common-errors#404-no-quotes-available)). Why is this changing? The Blast network has announced their intention to shut down. We are ending support for swapping on Blast in line with their team. What do I need to do? If your integration requests quotes or swaps on Blast, stop those requests and move funds to an alternative supported chain before October 28, 2026.
What Teire looks for in your code
- model ID "Blast network (chain id 81457)"
Does it reach your code?