Source CIDR

MongoDB Atlas

MongoDB Atlas publishes an unauthenticated JSON API of control-plane inbound and outbound IP addresses by cloud provider and region. Use it when allowlisting Atlas management traffic, webhooks, or KMS callbacks. Requests require an Atlas API Accept media type.

MongoDB Atlas control-plane IP addresses

Official feed

Official JSON of inbound/outbound control-plane CIDRs keyed by cloud and region. Send Accept: application/vnd.atlas.2025-03-12+json (or a current Atlas API version).

curl -sS -H 'Accept: application/vnd.atlas.2025-03-12+json' 'https://cloud.mongodb.com/api/atlas/v2/unauth/controlPlaneIPAddresses'

Documentation

Elastic Cloud Elastic Cloud static and Synthetics IP feeds. Amazon Web Services AWS ip-ranges.json when Atlas runs on AWS. Google Cloud GCP ranges when Atlas uses Google Cloud regions.