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CaptarRuntime control notebookSDK-first docs for traces, budgets, tools, and review.
OpenAI and OpenAI-compatible only

V1 docs

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Captar gives OpenAI apps a runtime control layer that feels calm, precise, and easy to inspect.

Use the TypeScript SDK to reserve budget before a request, wrap your existing client instead of replacing it, track tools inside the same trace, and promote the best runs into datasets and manual eval review.

Captar v1 focuses on traces, datasets, and manual review. The docs intentionally stay narrow so the SDK path is easy to follow and the platform story stays grounded in what is already available.

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What Captar helps with

1
Keep spend local to the request instead of depending on a proxy or gateway.
2
Apply call and tool guardrails before work reaches a provider or external system.
3
Keep the span tree rich enough that trace review is useful later.
4
Move the best examples into datasets so the review loop stays repeatable.

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Reading order