Is it possible to transpile a quantum circuit in Qiskit and send it to Xanadu chips? Where I can find the documentation for that?
The Xanadu chips currently available on the cloud perform different types of operations (squeezing, beamsplitters, phase-shifters) on different types of quantum systems (qumodes).
Qiskit assumes you are working with qubit gates (Hadamard, Paulis, CNOT) acting on qubit systems. So it is not possible to straightforwardly translate a Qiskit circuit and run it on Xanadu hardware.
If you want to learn more about the types of programs you can run on photonic devices, I encourage you to take a look at this tutorial.