Seamcult

Key facts: Seamcult launched on Product Hunt in November 2026 as a pattern design tool for the LLM era. It is an MCP server: bring Claude Code, Cursor, ChatGPT or any agent that speaks the protocol, and the agent drafts pattern pieces against a mannequin built from body measurements while Seamcult checks the geometry and seams. Draft from a photo, a text brief or an existing pattern, then export as PDF, PLT or DXF.

Plans: Free to start drafting. Check the official site for current paid plans and limits.

Best for: Sewists and fashion makers who want an AI agent to draft patterns they can check. Who should skip it: anyone who wants traditional pattern software with no AI in the loop.

Pros

• Your AI agent drafts the pieces; Seamcult checks the geometry and the seams
• Works with Claude Code, Cursor, ChatGPT or any MCP-speaking agent
• Draft from a photo, a new body, a one-line brief or an existing pattern
• Export as PDF, PLT or DXF at any point, and start drafting for free

Watch out for

• A brand-new niche tool, so pattern quality needs a human eye on every piece
• You need an MCP-capable agent to use it
• Paid plan details are not published on the homepage: check the official site

Best for

Sewists and fashion makers who want an AI agent to draft patterns they can check. Who should skip it: anyone who wants traditional pattern software with no AI in the loop, or a maker who does not use an AI coding agent.

Pricing

Free to start drafting. Check the official site for current paid plans and limits.

FAQs

What is Seamcult? A pattern design tool for the LLM era: an MCP server where your AI agent drafts sewing pattern pieces and Seamcult checks the geometry.

Which agents can use it? Claude Code, Cursor, ChatGPT or any agent that speaks MCP.

What can I draft from? A photo, a new set of body measurements, a one-line text brief, or an existing pattern you want reworked.

How do I export a pattern? As PDF, PLT or DXF, at any point in the process.