Codex for marketing, without building the process yourself
Founders are already using Codex for marketing, one prompt at a time. Tin turns that into a system: open-source workflows with live data, schedules, review steps and memory, run by the agent that already knows your product.
codex mcp add tin --url https://app.tin.computer/mcpStart from your codebase
Codex fills in your hosting, analytics, mailbox and other systems from the repository. You answer a few questions about time and budget. Tin ranks the marketing systems for your business and sets up the ones you choose.
Workflows written the way Codex works
Tin's agentic workflows are Codex procedures: a manifest, a PROMPT.md and skill files in the open-source repository. Simpler jobs are plain Python, with model calls only where a step needs judgment. You can read each one, fork it, or write your own the same way.
Organic growth
Audit, research, plan, draft and deliver, with fixes as pull requests.
Outreach
A shortlist from your own mailbox, and campaigns that send only what you approved.
Know your product the way a new user meets it
An AI tester signs up, uses every feature and reports what breaks. Codex then fixes it in the same session.
Creative
A brand character and short-form demo videos recorded from your live product.
Keep the record
Everything lands in project files and memory, and a weekly brief tells you what moved.
What every workflow here comes 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 →Questions
How do I add Tin to Codex?
Run: codex mcp add tin --url https://app.tin.computer/mcp. It connects Tin and opens the sign-in. Then ask Codex to grow your project.
Is this proven on a real business?
Claw Messenger went from about $45 to $2,105 in monthly recurring revenue in 124 days with the SEO, outreach, site fixes and weekly brief run by the agent. The case study is on the homepage.
What does Tin cost?
The software is open source under Apache 2.0 and can be self-hosted, where you pay your own providers. The hosted app uses credits.
Does this work with other agents?
Yes. Tin is an MCP server, so Claude Code, Claude, ChatGPT, Cursor and any other agent that speaks MCP can run the same workflows on the same projects.
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.