Harp vs La Growth Machine
La Growth Machine runs multichannel sequences (LinkedIn invites, messages and voice notes, email, and calls on higher plans) priced per sender identity, with AI messages on every plan, a Reply Agent in beta and an MCP server for Claude or ChatGPT. Harp is built around your own agent running the loop.
The short answer
If you want a mature multichannel sequencer with built-in AI and calls, La Growth Machine is built for that. If your own agent should do the research and answer replies, with LinkedIn kept in your own Chrome on your Mac, Harp is built for that.
Side by side
| Topic | Harp | La Growth Machine |
|---|---|---|
| What it is | The MCP harness for pipeline generation: research memory, sequences, sending, replies and LinkedIn, driven by your AI agent | A multichannel outreach platform priced per sender identity |
| Whose AI | Your own agent (Claude today) on your own plan; no AI credits | Built-in AI messages and agents; an MCP server for Claude or ChatGPT |
| Channels | Email and LinkedIn | LinkedIn, email and calls |
| Replies | The sequence stops; your agent answers email replies and books the meeting within minutes. LinkedIn replies wait for your yes in Slack | Shared inbox; Reply Agent in beta on higher plans |
| Buying | Flat subscription after a short call; set up with you | Public plans from €60 a month per identity; 14-day trial |
A sequencer with AI, or a harness for your AI
La Growth Machine adds AI to a multichannel sequencer you operate. Harp starts from the agent: your agent researches, qualifies and enrolls, and Harp holds the evidence, runs the sequence and wakes the agent when someone replies.
When La Growth Machine is the better choice
- You want calls and voice notes in the sequence.
- You want a self-serve multichannel sequencer today.
- Your team works from ChatGPT as well as Claude.
When Harp is the better choice
- Your agent already does your research and writing.
- You want LinkedIn to run from your own browser and machine.
- You want email replies answered by your agent, not drafted.
Questions
See Harp on your own outbound
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