Does your organization require you whitelist an IP address? Pipedream will actually connect to Mongo from a large range of IP addresses - we don’t have a static range where you’ll receive traffic from. If possible, I’d recommend either opening up Mongo to the public internet (0.0.0.0/0), or working with your team to setup a bastion host, as recommended here.
Here’s documentation from Mongo Atlas on configuring IP access rules.