Reach Estimate API

Get a range of individuals for your targeting and what bids to make to reach that target group with the /reachestimate API. You can call this API in one of these ways:

• Specify an ad account and a targeting spec:

curl -G \
  --data-urlencode 'targeting_spec={ 
    "geo_locations": {"countries":["US","GB"]}, 
    "publisher_platforms": ["instagram"], 
    "user_os": ["iOS"] 
  }' \
  -d 'optimize_for=IMPRESSIONS' \
  -d 'access_token=<ACCESS_TOKEN>' \
https://graph.facebook.com/ v20.0 
/act_<AD_ACCOUNT_ID>/reachestimate

Reference

• Ad Account Reachestimate
• Reach Estimate