Companies sell with probe, but I don't need the probe. How to get the base sequences of the endogenous primer?
I would suggest you to get the coding sequence of your genes of interest and then design the primers on your own. Depending on the realtime PCR machine even commercially available primers do not neccessarily work or primers that work in one realtime PCR machine do not work in another one. This depends on the type of PCR, if it is a two-step oder three-step PCR.
Realtime PCR machines like the ones from Applied Biosystems are usually delivered with a software like PrimerExpress 3.0 which specifically designes primers according to the PCR conditions of the machine.
These days there is right a lot of primer design software available (even free of cost) that you can design primers without any problems on your own. If a specific software for your realtime PCR machine is available, use that one. But don't forget to check designed primers by BLASTing for their specifity. And after realtime PCR including dissociation curve (melting curve) check the PCR product for its specifity on an agarose gel.
Personally I trust more in primers designed by myself / a specific software rather than in black box primers sold by companies where you only get an annealing temperature but no primer sequence information.
Another option is to get them from Primer Bank
http://pga.mgh.harvard.edu/primerbank/
But I'd primer-blast the ones you pick, sometimes the primers stored there aren't as good as the ones you design yourself.
Bio-Rad sells SYBR qPCR assays -- which only have primers. They are called PrimePCR.
I'm not sure they give you the sequence, but you can purchase the primers without a probe. And they analyze the assays based on the MIQE guidelines http://www.ncbi.nlm.nih.gov/pubmed/19246619
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