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

# v0.1.19

> Duplicate-safe graph node creation

<Update label="2026-07-16" description="v0.1.19: title dedup on node creation">
  ## Improved: duplicate-safe graph node creation

  `POST /api/v1/collections/{id}/graph/nodes` and `POST /api/v1/tkgs/{tkgId}/graph/nodes` now check for an existing prediction/claim with a substantially overlapping title before creating a new one. If a close match already exists on the platform, that existing FactBlock is reused instead of creating a near-duplicate — and if it's already a node in the same graph, no duplicate node is created either.

  The response now includes an optional `reused: boolean` field so you can tell whether your request created something new or matched an existing FactBlock.
</Update>