AI SDR alternatives
The Harp team ·
We build Harp, which is one of the alternatives below, so weigh our take accordingly. Every other tool is described from its own website as of the date above, and we say plainly when one of them fits better than Harp.
AI SDR platforms ship their own agent: 11x with Alice, Artisan with Ava, AiSDR with its own AI. The usual reasons to look for an alternative are price, control over what the AI says, and the feeling of paying for AI you already have.
Other AI SDR platforms
- Salesforge Agent Frank. An AI SDR on top of an email and LinkedIn platform. Best for: teams already on Salesforge.
- OXYGEN. A broad GTM platform with built-in agents and a hosted MCP server. Best for: an all-in-one self-serve option.
A sequencer with AI on top
- lemlist, La Growth Machine and Instantly have added AI writing and reply features to their sequencers. Best for: keeping a sequencer you know, with AI help.
Your own agent, with a harness
- Harp. Your agent (Claude today) does the SDR work on your own plan; Harp holds the research with evidence, runs email and LinkedIn sequences, and wakes the agent to answer replies and book meetings. Best for: teams that already trust their agent and do not want to pay for AI twice.
Questions
What is the difference between an AI SDR and an MCP harness?
An AI SDR platform ships its own agent. A harness gives your own agent the tools, memory and guardrails to do the job. See What is an MCP harness?.