copperhead is an open-source, verification-first AI agent that designs, documents, and validates printed circuit boards (PCBs) by working directly on existing KiCad repositories.
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It iterates on designs through natural language prompts, ensuring changes are electrically verified and documented through automated ERC/DRC checks.
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Autonomous PCB design, documentation, and verification loop
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Gated workflow requiring spec validation and ERC/DRC compliance before commits
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Supports full design pipelines from product briefs to manufacturable gerbers and firmware
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Drift detection between schematic, docs, and board files
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Local-first architecture with git-based safety snapshots
| TeamEntry plan | $49 | per user / month |
The CLI is free. Cloud starts at $49/user/month, Team is $49/user/month plus a $199/month platform fee, and Enterprise is a custom annual license. Managed inference uses a credit system, while users can bring their own API keys at no extra cost to the platform.
Best for
Hardware engineers using KiCad who want to automate design iteration, documentation, and verification while maintaining full ownership of their source files.
Not ideal for
Users of proprietary EDA software (e.g., Altium, Cadence) or those seeking a fully automated, hands-off autorouter solution; it requires human oversight and sign-off.
A powerful, engineering-focused tool that acts as a 'Cursor for circuit boards,' successfully bridging the gap between natural language intent and verified hardware design artifacts without creating vendor lock-in.
Version 0.8.1 was documented as active, with ongoing improvements to the agent loop and verification tooling through September 2026.
As of
Is copperhead free?+
copperhead is Freemium. The CLI is free. Cloud starts at $49/user/month, Team is $49/user/month plus a $199/month platform fee, and Enterprise is a custom annual license. Managed inference uses a credit system, while users can bring their own API keys at no extra cost to the platform. 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. Cloud starts at $49/user/month, Team is $49/user/month plus a $199/month platform fee, and Enterprise is a custom annual license. Managed inference uses a credit system, while users can bring their own API keys at no extra cost to the platform. Pricing changes often - verify on the official site.
Who is copperhead best for?+
Hardware engineers using KiCad who want to automate design iteration, documentation, and verification while maintaining full ownership of their source files.
Who is copperhead not ideal for?+
Users of proprietary EDA software (e.g., Altium, Cadence) or those seeking a fully automated, hands-off autorouter solution; it requires human oversight and sign-off.
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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