Will fly from MUC to PEK and from PEK to BKK. I want leave the airport in Beijing for sightseeing.

The flight fom PEK to BKK is within 24 hours. I am German and I don't need visa for this. But I have to apply for Temporary Entry Permit in PEK airport.

My question now: does this Temporary Entry Permit cost money ? If yes,how much ?

Thanks in advance