AUTO scripts to generate bifurcation diagrams for various ODE systems. AUTO can be downloaded from
http://indy.cs.concordia.ca/auto/
and the documentation can be found at
http://www.dam.brown.edu/people/sandsted/auto/auto07p.pdf
The four models implemented so far are the Goldbeter, Gonzalez-Fernandez & Ermentrout, Meyer & Stryer, and NVU based SMC/EC models.
AUTO must be installed before running. Once everything is set up, simply run
auto <<script>>
in the terminal, where script has the .auto file extension. The models are defined in the .f90 files, the relevant AUTO parameters in the c.* files, and the additional parameters in the autorc files. Having a look at the AUTO documentation linked above is highly recommended.