standard set of $\Lambda$CDM cosmological parameters: ($\Omega_{\rm m}$, $\Omega_{\rm \Lambda}$, $\Omega_{\rm b}$, $n$, $\sigma_{8}$, $H_{0}$) =(0.27, 0.73, 0.046, 0.96, 0.82, 70 ${\rm km\, s^{-1} \, Mpc^{-1}}$), measured from the *Wilkinson Microwave Anisotropy Probe* [@Bennett:2013p3136] which are consistent with the latest results from Planck [@PlanckCollaboration:2014p3099].

[<span style="font-variant:small-caps;">21CMMC</span>]{} {#sec:21CMMC}
========================================================

Prior to showcasing the performance of [<span style="font-variant:small-caps;">21CMMC</span>]{}[^7], we first outline the various ingredients that contribute to the overall analysis tool. First, in Section \[sec:21CMFAST\], we summarize the included [EoR]{} simulation code [<span style="font-variant:small-caps;">21CMFAST</span>]{}. We then discuss the likelihood statistic in Section \[sec:likelihood\]. Next, in Section \[sec:MCMC\] we briefly describe the specifics of the MCMC driver and in Section \[sec:TNP\] we discuss the telescope sensitivities. Finally, in Section \[sec:pipeline\] we summarize the full [<span style="font-variant:small-caps;">21CMMC</span>]{} pipeline.

[<span style="font-variant:small-caps;">21CMFAST</span>]{} {#sec:21CMFAST}
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[<span style="font-variant:small-caps;">21CMMC</span>]{} employs a streamlined version of [<span style="font-variant:small-caps;">21CMFAST</span>]{}v1.1, a publicly available semi-numerical simulation code specifically designed for enabling astrophysical parameter searches. It employs approximate but efficient methods for [EoR]{} physics, and is accurate compared to computationally expensive radiative transfer (RT) simulations on scales relevant to 21 cm interferometry, $\geq 1$ Mpc [@Zahn:2011p1171].

Specifically, [<span style="font-variant:small-caps;">21CMFAST</span>]{} generates the [IGM]{} density, velocity, source and ionization fields by first creating a 3D realization of 