Robuta

https://www.juniper.net/documentation/us/en/software/northstar6.2.1/getting-started/topics/concept/pcep-router-configuring.html
A Path Computation Client (PCC) supports the configurations related to the Path Computation Element (PCE) and communicates with the NorthStar Controller, which...
pe routerfrom thepcepclijuniper
https://www.juniper.net/documentation/us/en/software/juniper-routing-director2.7.0/user-guide/topics/task/cli-configure-pcep-router.html
To configure a PE router as a PCC:
pe routerpcepjuniperroutingdirector
https://www.aap.org/PCEP-Book-2-Maternal-and-Fetal-Care-4th-Edition-Paperback
pcepbookmaternalfetalcare
https://www.coursera.org/learn/pcep-python-data-processing-lo094027
Offered by Logical Operations. In this course, you'll continue developing your Python skills by processing simple data types like integers ... Enroll for free.
data processingpceppythoncoursera
https://www.rfc-editor.org/rfc/rfc8745
An active stateful Path Computation Element (PCE) is capable of computing as well as controlling via Path Computation Element Communication Protocol (PCEP)...
path computation elementcommunication protocolrfcpcepextensions