An open-source lemlist alternative for email-first outreach
lemlist runs multichannel sequences with heavy personalization. Tin covers the email part as open-source workflows, with your agent drafting from what the product really does.
codex mcp add tin --url https://app.tin.computer/mcp
| the job | how Tin does it | workflow |
|---|---|---|
| Email sequences | Approved campaign with follow-ups that stop on reply. | outreach.email_campaign → |
| Picking recipients | Evidence-backed shortlist from Gmail and Calendar. | outreach.email_shortlist → |
What Tin does not replace.lemlist is still good at its own job.
lemlist is a sales engagement tool for multichannel outreach across email and LinkedIn, with personalization and a lead database.
- LinkedIn and call steps. LinkedIn sequences are planned.
- Image and video personalization.
- A lead database.
Choose Tin when
Email is your channel and you want it run from your project, in the open.
Stay with lemlist when
You need multichannel sequences for a sales team.
What every workflowcomes with.
Battle tested on real products
These are the workflows we run for real companies. Claw Messenger went from about $45 to $2,105 in monthly revenue in 124 days on them. Each one has declared inputs, bounded execution and tests, and anything public waits for your review.
See the case study →Open source: read it, fork it, self-host it
Apache 2.0. Every workflow is a folder in the repository: the steps it runs, the data it reads and what it is allowed to do. Change it, or run the whole system on your own machine.
Open the repo →Runs on the agent that already knows your product
Tin connects to Claude Code, Codex or Cursor over MCP. That agent has your repository open and knows your product, customers and voice, so it fills the inputs and reviews the output. You never brief a new tool from zero.
All workflows →The workflows behind this page.Each one is a folder in the repo.
Questions.
Does Tin personalize each email?
You approve the exact copy that is sent. Your agent can draft it from what it knows about the product and the shortlist evidence.
Is Tin really open source?
Yes. Tin is licensed under Apache 2.0 and the source is at github.com/tin-computer/tin. You can read every workflow, change it, and self-host the whole system.
Which coding agents can run Tin workflows?
Any agent that speaks MCP, including Claude Code, Codex and Cursor. There is also an API, and the same projects run in the browser at app.tin.computer.
Why run marketing from a coding agent?
Because it already knows your product. It has the repository open, so it fills workflow inputs accurately, reviews output against what the product really does, and can act on the results in the same session.
More Outreach alternatives.
Add Tin to your coding agent.It takes one command.
codex mcp add tin --url https://app.tin.computer/mcp