> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nebuly.com/llms.txt
> Use this file to discover all available pages before exploring further.

# API changelog

> API updates and announcements

<Update label="July 2026">
  ## Deep Link API

  Added two new endpoints to generate direct URLs to Nebuly's Live Activity page:

  * [Get Interaction Deep Link](/embedded-pages/deeplinks/get-interaction-deeplink)
  * [Get Conversation Deep Link](/embedded-pages/deeplinks/get-conversation-deeplink)

  These endpoints return a URL that opens the requested interaction or conversation directly in the platform.
</Update>

<Update label="June 2026">
  ## Custom cost for LLM traces

  The `LLMTrace` object in the [Interaction API](/tracking/api-reference/events/post-events-interaction-with-trace-v2) now
  supports an optional `cost` field, expressed as a non-negative integer number
  of micro-dollars (1 USD = 1,000,000 micro-dollars). When provided, this value
  overrides the cost that would otherwise be computed automatically from the
  model, `input_tokens` and `output_tokens`. Use it to report the exact cost of
  a call, for example for models or providers whose pricing Nebuly does not
  compute automatically, or to account for custom or negotiated pricing.
</Update>

<Update label="February 2026">
  ## Rename to Eligible Users

  The Eligible Users APIs have been renamed to **Eligible Users**. Please update your integration accordingly. The following endpoints are affected:

  * [Send Eligible Users](/eligible-users/api-reference/send-eligible-users)
  * [Get Eligible Users](/eligible-users/api-reference/get-eligible-users)
  * [Update Eligible Users](/eligible-users/api-reference/update-eligible-users)
  * [Delete Eligible Users](/eligible-users/api-reference/delete-eligible-users)

  The old endpoints are still available, but considered as deprecated and will be removed in the future.

  ## Rename to User Feedback

  The **Send Feedback Actions** endpoint has been renamed to [Send User Feedback](/tracking/api-reference/events/send-feedback-actions).
  Additionally, the `feedback_actions` field in the [Interaction API](/tracking/api-reference/events/post-events-interaction-with-trace-v2) has been renamed to `user_feedback`.

  To avoid breaking changes for the Interaction API we have increased the version of the endpoint to v3. The v2 endpoint is still available but it is deprecated and will be removed in the future,
  please update your integration accordingly.
</Update>