Connect to auto created mongodb from external connection?

I am a new meteor.

As i know, when i start meteor, its will auto created an mongo db. Now, i want to push some data from external services into this mongo db. How to connect this db ?

After you start meteor, you can open another terminal and start "meteor mongo"
It is documented here:
http://docs.meteor.com/#/full/meteormongo

You can also use any Mongodb client you like, and connect to localhost:3001