MLC
MLC is MLC | XGrammar-2: Fast and Customizable Structured Generation for Tool Calling and Agents. It is ranked #234 on the Dev Radar, in AI dev tools, first seen 11 h ago and shared in 2 posts (8.8k views).
MLC | XGrammar-2: Fast and Customizable Structured Generation for Tool Calling and Agents --> Home XGrammar-2: Fast and Customizable Structured Generation for Tool Calling and Agents May 4, 2026 • MLC Community TL;DR. XGrammar-2 is a major upgrade of XGrammar built for agent applications. It introduces Structural Tag , a composable JSON protocol that uniformly expresses OpenAI harmony format, tool calling, reasoning channels, and any custom output structure, exposed directly through serving engines’ API. Multiple efficiency optimizations , such as cross-grammar caching, repetition-state compression, and batching and speculative decoding…
What people said about MLC on X
Shoutout to XGrammar team for the great collaboration on enabling reliable and performant tool calling for serving DeepSeek-v4.1 on vLLM!
— @vllm_project, 11 h ago · 90 likes · see the post
XGrammar's Structural Tags now enforce DeepSeek V4.1's native DSML format directly in SGLang's constrained decoding path. Great work from the XGrammar team! Check out how the Structural Tag works 👇
— @sgl_project, 10 h ago · 8 likes · see the post
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MLC in numbers
- Rank on the Dev Radar: #234 of 2352
- Shared in 2 posts by 2 accounts: @vllm_project, @sgl_project
- 8.8k views on those posts
- First seen 11 h ago, last shared 10 h ago
- Pricing seen by Jev: not stated
- Market: AI dev tools
FAQ
What is MLC?
MLC | XGrammar-2: Fast and Customizable Structured Generation for Tool Calling and Agents It was first shared on X 11 h ago and is ranked #234 on the Dev Radar.
Is MLC free?
Pricing is not stated on the page we read.
Who shared MLC?
2 accounts on X, including @vllm_project, @sgl_project, in 2 posts totalling 8.8k views.
Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 20.7k posts from 4.9k X accounts over the last 21 days, 2.4k tools, 12 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-22 08:21 UTC. Full method.