Substructure is an open-source engine that drives your agent loop with JSON webhooks. It keeps sessions durable and streams AG-UI events to your clients. It's language agnostic. You don't even need an SDK.
Cross-referenced across 55 tracked directories
#2874
Popularity Rank
1 / 55
Listed In
Emerging
Adoption Stage
2/23/2026
Created
13
GitHub Stars
3
Forks
10/28/2026
Last Commit
Recently added to the ecosystem
Score: 100/100
0 dependency vulnerabilities found
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