Was looking into semrush ourselves earlier in the season. Pretty costly corporate solution. Was quoted $600 /mo for the api solution. Also keep in mind someone will have to analyze and maintain the system internally. Let’s say a minor role at $2,000-2,500 /mo.

Not sure what agency pricing is for you but we’ve been steered (by the industry) to keep everything in-house. It’s easier managed and offers more security for the smaller budget we have.