ctx-capture is an open-source MCP server that enables developers to capture and query the exact context windows seen by LLM agents at every step. It supports observability and debugging for AI agent workflows, making it easier to analyze agent behavior.
ctx-capture is a LLM eval & observability product. It focuses on providing visibility into what LLM agents see and do at each step for debugging and analysis. It is built as an open-source project for AI developers and researchers working with LLM agents. ctx-capture is open source under the MIT license. The product ships for the command line, and it can be self-hosted.
Sathvik Nayak builds and maintains ctx-capture, and the product first shipped in 2026. Development happens publicly on GitHub with 10 commits in the last 90 days. Key capabilities include context capture, LLM agent tracing, and queryable logs. It exposes integrations via an MCP server.
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