API Change Log

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• CM API: Disclosing AI content
• CM API: Rate limits and bulk endpoints

Disclosing AI content

June 23, 2026 - Campaign Management API

• When uploading assets, you are required to disclose realistic content that was generated with AI. 
• Set aiDeclared to true to label content as AI. 
• Assets will default to false if this field is omitted.

Example:

POST /v1/assets
curl -X POST 'https://cm-api.liftoff.io/v1/assets' \
 -u 'API_KEY:API_SECRET' \
 -H 'Accept: application/json' \
 -F 'file=@/dir/test.mp4;type=video/mp4;filename=test.mp4' \
 -F 'aiDeclared=true'

Rate limits and bulk endpoints

May 27, 2026 - Campaign Management API

Rate limits

• The API now has a rate limit of 1000 requests per minute per rest method. The rate limits were implemented in order to ensure stable, consistent performance. 
• If you go above the limit, you will receive 429 (Too Many Requests) errors. Here are a few things you can do to minimize the errors:
  • Retry failed requests - the 429 response includes a Retry-After header you can use to pace retries
  • Spread out requests - when possible, please avoid sending large bursts of calls at once and distribute them more evenly over time

Bulk endpoints

• To make high-volume requests more efficient, we also added bulk endpoints for assets, spend targets, and creatives. These endpoints allow you to request up to 100 entities in a single request instead of 1, and filter for specific entity IDs. If no entity IDs are specified, the full list will be returned. 
  • v1/assets?asset_ids=a,b,c
  • /v1/creatives?creative_ids=a,b,c 
  • v1/campaigns/spendCaps/daily?campaign_ids=a,b,c