Update asset tag

Update asset tag for the authenticated user’s fal Assets library.

PATCH /assets/tags/{tag_id}

Update asset tag

cURL

curl --request PATCH \
  --url https://api.fal.ai/v1/assets/tags/{tag_id} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "campaign"
}
'

import requests

url = "https://api.fal.ai/v1/assets/tags/{tag_id}"

payload = { "name": "campaign" }
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.patch(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PATCH',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({name: 'campaign'})
};

fetch('https://api.fal.ai/v1/assets/tags/{tag_id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

200

{
  "tag": {
    "id": "43ce3411-1a25-4d14-875e-3562d341b090",
    "name": "moodboard",
    "created_at": "2026-05-23T20:00:00.000Z"
  }
}

{
  "error": {
    "type": "validation_error",
    "message": "Invalid request parameters"
  }
}

{
  "error": {
    "type": "authorization_error",
    "message": "Authentication required"
  }
}

{
  "error": {
    "type": "authorization_error",
    "message": "Access denied"
  }
}

{
  "error": {
    "type": "not_found",
    "message": "Resource not found"
  }
}

{
  "error": {
    "type": "validation_error",
    "message": "Invalid request parameters"
  }
}

{
  "error": {
    "type": "validation_error",
    "message": "Invalid request parameters"
  }
}

{
  "error": {
    "type": "rate_limited",
    "message": "Rate limit exceeded"
  }
}

{
  "error": {
    "type": "server_error",
    "message": "An unexpected error occurred"
  }
}

{
  "error": {
    "type": "server_error",
    "message": "Upstream asset service failed"
  }
}

Authorizations

Authorization · string · header · required

API key must be prefixed with "Key ", e.g. Authorization: Key YOUR_API_KEY

Headers

Idempotency-Key · string

Optional idempotency key for safe request retries

Example:

"550e8400-e29b-41d4-a716-446655440000"

Path Parameters

tag_id · string · required

Tag ID

Minimum string length: 1

Example:

"43ce3411-1a25-4d14-875e-3562d341b090"

Body

application/json

name · string

Tag name

Required string length: 1 - 50

Response

200

application/json

Tag updated

tag · object · required

Asset tag

Show child attributes