mitmproxy

SSL-capable man-in-the-middle HTTP proxy
mitmproxy is an SSL-capable man-in-the-middle HTTP proxy. It provides
a console interface that allows traffic flows to be inspected and
edited on the fly.
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Also shipped is mitmdump, the command-line version of mitmproxy, with
the same functionality but without the frills. Think tcpdump for
HTTP.
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Features:
- intercept and modify HTTP traffic on the fly
- save HTTP conversations for later replay and analysis
- replay both HTTP clients and servers
- make scripted changes to HTTP traffic using Python
- SSL interception certs generated on the fly