---
title: "Rebuild a collection's vector index"
method: POST
path: "/voice/collections/{collection_id}/reindex"
tags: ["Voice"]
---

# Rebuild a collection's vector index

`POST /voice/collections/{collection_id}/reindex`

## Request

- Base URL: `https://be.graph8.com/api/v1`
- URL: `https://be.graph8.com/api/v1/voice/collections/{collection_id}/reindex`
- Auth: HTTP bearer

RE-EMBEDS EVERY FILE IN THE COLLECTION. This costs money.

Embedding is charged per token, so the cost is proportional to the whole
collection, not to whatever changed. Use it to recover from a bad index,
not as a routine refresh - adding a file already indexes that file.

Tiered `billable` by an explicit rule rather than by name: nothing in the
word "reindex" matches a billable path marker, and as a plain `write` this
would ride along with "rename a collection".

## Path parameters

- `collection_id` integer, required: Collection id.

## Headers

- `Authorization` string, nullable
- `X-Target-Org-Id` string, nullable

## Response `200`

Successful Response

- ApiResponseVoicePayload
  - `data` VoicePayload, required: One voice object - a collection, an agent, a route, a chat. Open-shaped: voice adds fields to these bodies on its own release cadence and a dropped-or-added key must not be a 500 in this service.
  - `pagination` PaginationMeta
    - `page` integer, required: Current page number (1-indexed)
    - `limit` integer, required: Items per page
    - `total` integer, required: Total number of items
    - `has_next` boolean, required: Whether there are more pages
    - `next_cursor` string, nullable: Opaque cursor for the next page; null when there are no more items. Pass it back as the `cursor` query param to fetch the following page without computing page numbers.
    - `total_available` integer, nullable: Search endpoints only: how many records really match, when known. Can be larger than `total`, which is capped at the 10,000 results that can be paged. For company search this is a distinct-company estimate. Null when unknown; absent outside search.
    - `total_is_lower_bound` boolean, nullable: Search endpoints only: true when more records match than `total` shows (the result set is larger than the 10,000 results that can be paged). Absent outside search.
    - `notes` string[], nullable: Search endpoints only: plain-language notes about the result, e.g. that more records match than can be paged, or that a reversed `between` range was put in order.

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/graph8/apis/graph8-developer-api.md) · [All operations](https://skmtc.dev/graph8/apis/graph8-developer-api/llms.txt) · [OpenAPI document](https://skmtc.dev/graph8/apis/graph8-developer-api/revisions/2e7cfa0ca921?raw)