Copperhead is an open-source AI engineering platform that acts as a Cursor for circuit boards, allowing users to design, document, and verify KiCad projects via natural language prompts.
It operates as a CLI agent that edits real KiCad files, maintains design documentation, and enforces electrical and design rule checks (ERC/DRC) to prevent design drift.
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Automated KiCad schematic and PCB editing
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Verification-gated workflow using kicad-cli ERC/DRC
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Drift detection between design docs and hardware files
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Full pipeline generation from product briefs
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Model-agnostic backend (supports Claude, GPT-5, and others)
| CloudEntry plan | $49 | per user / month |
| Team | $49 | per user / month |
The CLI is free and open-source. Paid tiers include Cloud ($49/user/month), Team ($49/user/month + $199/month platform fee), and custom Enterprise plans. Cloud is free for public repositories with OSHWA-certified or CERN-OHL-S licenses.
Best for
Hardware engineers and teams using KiCad who want to automate repetitive design tasks, documentation, and verification while maintaining full control over their source files.
Not ideal for
Users of proprietary EDA software (e.g., Altium, Eagle) or those seeking a fully automated autorouter, as Copperhead focuses on verified, human-reviewable design edits rather than black-box routing.
A powerful, transparent, and safety-conscious tool for hardware teams that treats circuit board design like software engineering, ensuring that design intent and physical implementation never drift apart.
As of August 2026, the platform has matured its eight-stage pipeline for generating full design packages from markdown briefs and improved its integration with various AI coding assistants like Cursor and Claude Code.
As of
Is copperhead free?+
copperhead is Freemium. The CLI is free and open-source. Paid tiers include Cloud ($49/user/month), Team ($49/user/month + $199/month platform fee), and custom Enterprise plans. Cloud is free for public repositories with OSHWA-certified or CERN-OHL-S licenses. Check the official site for current plans.
Is copperhead open source?+
copperhead is not listed as open source on ai.dosa.dev - it is Freemium.
How much does copperhead cost?+
The CLI is free and open-source. Paid tiers include Cloud ($49/user/month), Team ($49/user/month + $199/month platform fee), and custom Enterprise plans. Cloud is free for public repositories with OSHWA-certified or CERN-OHL-S licenses. Pricing changes often - verify on the official site.
Who is copperhead best for?+
Hardware engineers and teams using KiCad who want to automate repetitive design tasks, documentation, and verification while maintaining full control over their source files.
Who is copperhead not ideal for?+
Users of proprietary EDA software (e.g., Altium, Eagle) or those seeking a fully automated autorouter, as Copperhead focuses on verified, human-reviewable design edits rather than black-box routing.
What are the best copperhead alternatives?+
The closest copperhead alternatives on ai.dosa.dev are NVIDIA Personal AI Router (PAIR), WebLLM, Magnitude - all listed under Hardware & Edge AI.
Who makes copperhead?+
copperhead is developed by copperhead. It is listed in the Hardware & Edge AI category on ai.dosa.dev.
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