LangGraph Runtime (In-Memory)
JSON →The `langgraph-runtime-inmem` library provides an in-memory implementation for the LangGraph API server's state management, enabling local development and testing of LangGraph agents without requiring an external database. It's designed for ephemeral, single-process usage. Currently at version 0.27.3, it follows the rapid release cadence of the broader LangGraph ecosystem, with frequent updates.
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Resources
API endpoints
full doc /v1/registry/langgraph-runtime-inmem
compatibility /v1/registry/langgraph-runtime-inmem/compatibility