---
title: "Replace a document's text"
method: PATCH
path: "/knowledge/documents/{id}"
tags: ["Knowledge"]
---

# Replace a document's text

`PATCH /knowledge/documents/{id}`

## Request

- Base URL: `https://api.meetdarwin.ai/v1`
- URL: `https://api.meetdarwin.ai/v1/knowledge/documents/{id}`
- Auth: HTTP bearer

Requires the `knowledge:write` scope.

## Path parameters

- `id` string, required

## Headers

- `Idempotency-Key` string

## Request body

- KnowledgeDocumentUpdate
  - `name` string
  - `content` string, required

## Response `200`

OK

- KnowledgeDocument
  - `id` string, required
  - `object` 'knowledge_document', required
  - `name` string, required
  - `status` 'pending' | 'ready' | 'failed', required
  - `error` string, nullable, required
  - `characters` integer, required
  - `chunks` integer, required
  - `created_at` string, date-time, nullable, required
  - `updated_at` string, date-time, nullable, required
  - `content` string
  - `replaces` string

## Other responses

- `400`: Invalid request (`invalid_request`, `unsupported_version`).
- `401`: Missing or invalid key (`authentication_required`, `invalid_api_key`).
- `402`: The workspace must add a card before the API can be used (`payment_required`).
- `403`: The key lacks the scope (`insufficient_scope`), the feature is off (`feature_disabled`), or the workspace's plan doesn't include it (`plan_required`, with `required_plan`).
- `404`: No such object in this workspace (`not_found`).
- `409`: Conflicts with the current state (`conflict`, `idempotency_key_in_use`), or the change would leave a live agent with no calendar or live form (`goal_required`).
- `422`: Refused by a rule (`unprocessable`, `idempotency_key_reused`).
- `429`: Rate limited (`rate_limited`) or a monthly allowance used (`quota_exceeded`); see Retry-After.

## Changes

- **2026-10-20** `f93b0bcb454a`: 24 info
  - added the optional property `feature` to the response with the `400` status
  - added the optional property `feature` to the response with the `401` status
  - added the optional property `feature` to the response with the `402` status
  - added the optional property `feature` to the response with the `403` status
  - …20 more

[Operation history](https://skmtc.dev/meetdarwin/apis/darwin-api/changes/knowledge/documents/:id/patch.md)

---

[API](https://skmtc.dev/meetdarwin/apis/darwin-api.md) · [All operations](https://skmtc.dev/meetdarwin/apis/darwin-api/llms.txt) · [OpenAPI document](https://skmtc.dev/meetdarwin/apis/darwin-api/revisions/f93b0bcb454a?raw)