bread.ai
Antler AUS16Now building · v1 hardware · limited spots

AI agents can write the code.They can't see if the board is working.

Crouton gives your AI assistant live eyes on your actual circuit. It can see what's connected, what's powered, and what's wrong. No more guessing.

crouton stream - board 0x4A
B10 VCCV=3.30C=TRUESTATE=NOMINAL
B11 SCLV=3.29C=TRUESTATE=NOMINAL
B12 SDAV=3.29C=TRUESTATE=NOMINAL
B14 GPIOV=1.63C=TRUESTATE=RISING
agent context - live
64CH MUXED0.1IN PITCHMCP NATIVECURSOR · CLAUDE · COPILOT
Try it - no hardware required

Pull a wire. Watch the agent catch it.

Simulated board - real MCP schema
MCUU1TEMP SENSORU2B11 SCLB12 SDAB10 VCCGND
→ Pull a wire
crouton stream - board 0x4A
B10 VCCV=3.30C=TRUESTATE=NOMINAL
B11 SCLV=3.29C=TRUESTATE=NOMINAL
B12 SDAV=3.29C=TRUESTATE=NOMINAL
GNDV=0.00C=TRUESTATE=NOMINAL
agent - via mcp

// monitoring - pull a wire to inject a fault

Scripted replay. Field format matches Crouton's MCP stream: per-channel V= / C= / STATE=. Simulated readings reviewed for electrical accuracy.

Fault state: unresolvable

Agents are debugging blind.

The bottleneck in hardware bring-up is not code generation. It is fault localization from live electrical state. Every AI tool today stops at the software boundary.

Agents today

Is it wired wrong, or is the code wrong?

Your agent generates firmware. You flash it. Nothing happens. Without live circuit data, neither you nor your AI has any idea which layer failed.

Every debug suggestion is an educated guess.

Language models reason over text. They cannot measure voltage, continuity, or signal presence. Every fix they suggest is based on inference, not measurement.

Shorted rails. Fried parts. No warning.

Without live monitoring, you find out about a shorted rail or over-voltage only after something stops working. Sometimes only after it burns.

Agents + Crouton
Agent context · live state
B12 SDA V=0.07V FLOATING
B11 SCL V=3.29V NOMINAL
B10 VCC V=3.30V NOMINAL
// SDA floating - pull-up missing or not seated
// you caused this exact fault above ↑

Agent sees circuit topology in real time.

Crouton streams per-node connectivity data via MCP. Your agent knows what is actually connected before suggesting a fix.

Every suggestion grounded in real measurements.

Live 64-channel readings land directly in the agent context window. Voltage, continuity, signal presence: actual hardware state, not inference.

Faults logged the moment they happen.

Continuous rail monitoring detects shorts, brownouts, and over-voltage, then surfaces them in the agent context immediately. Catch fault conditions during the debug loop before you re-flash and damage a second part.

Inside Crouton

Two layers working together so building electronics stops being a fight.

  1. Meet Crouton

    A breadboard with live circuit visibility.

    Same form factor, same hole pitch as the breadboard you already know, with 64-channel muxed sensing, a built-in MCP server, and direct integration into AI agent workflows.

  2. Breadboard surface

    The interface your hands already know.

    Plug in your microcontroller, sensors, and jumper wires exactly as you normally would. No new tools, no special wiring. Crouton is a standard 0.1" pitch breadboard that also reads the circuit.

  3. Intelligence layer

    The sensing layer your agent talks to.

    Custom hardware monitors every node in real time: voltages, continuity, signal presence across 64 channels. A local MCP server exposes this live state to Cursor, Claude, Copilot, or any MCP-compatible agent.

How it works

Breadboard to agent context, in real time.

  1. Build on the breadboard.

    Standard 0.1" pitch

    Use Crouton exactly like a standard breadboard. Drop in your microcontroller, sensors, and passive components. Connect via USB-C. The MCP server starts automatically and is visible to Cursor, Claude Code, or any MCP client within seconds.

  2. Crouton reads live electrical state.

    64-ch muxed / rail + node coverage

    Built-in sensors monitor 64 active nodes (your power rails and component pin rows) in real time: voltages, continuity, signal presence. No manual probe placement, no hunting for the problem wire.

  3. Your agent sees real signal via MCP.

    MCP server / Cursor / Claude / Copilot

    Your AI assistant can see the actual state of your board, not just your code. It knows what is connected and what is powered, so when something is wrong it can tell you why. Works with Cursor, Claude, Copilot, and any MCP-compatible agent.

Crouton is v1. There is more coming.

Building the full stack for AI-native hardware development. Crouton is the breadboard. What comes next follows the same principle: give AI agents real electrical state to work with.

v1 - Early access open

Crouton

The instrumented breadboard. Standard form factor, 64-channel muxed sensing, built-in MCP server. First hardware that gives AI agents live circuit visibility.

  • 64-ch muxed sensing
  • Rail voltages, continuity, signal presence
  • Built-in local MCP server
  • Compatible with Cursor, Claude, Copilot
  • Standard 0.1" breadboard pitch
v2 - Roadmap

Sourdough

Expanded sensing and higher-density board support. Details come as v1 ships and we learn from early builders.

Spec redacted
v3 - Roadmap

Wholegrain

Full-stack instrumentation for production bring-up and hardware startup teams. More when the time is right.

Spec redacted

Built for engineers who build hardware.
Useful at every level.

If you bring up boards, debug firmware, or prototype hardware, Crouton gives your AI what it has been missing: live circuit state, not inference.

Embedded engineers

Stop flying blind on the bench. Live voltage, signal presence, and connectivity across monitored nodes, streamed straight into your agent's context. Real data, real fixes.

fault localization64-ch readingsagent-native
Hardware startups

Cut bring-up time. AI agents with live circuit data compress the loop from first prototype to working board, without a full hardware team.

faster bring-upagent-assisted debug
Makers and hobbyists

Turn a weekend project into a working prototype. When your circuit acts up, Crouton gives your AI the exact fault data. Fix the problem, not a guess.

weekend buildsAI-assisted
Students

Get unstuck on lab projects in minutes, not hours. Stop staring at a circuit that should work. Crouton tells your AI what is actually happening on the board.

lab projectsfaster debugging
Technical founders

Prototype hardware without deep embedded expertise. Crouton gives your AI the circuit visibility to go from schematic to working board, without paying for debug hours.

rapid prototypinghardware risk reduction
Research labs

Continuous monitoring for sensor arrays and experimental rigs. Live data in agent context, not hours of offline waveform review.

sensor arrayslive monitoring
Early access

Limited spots for v1
hardware.

Building Crouton for engineers who need this now. First batch goes to people building real hardware, not speculative signups.

Waitlist - 312 Engineers

// “Finally. I spend more time hunting wiring bugs than writing firmware.” - Embedded systems lead, robotics startup

  • First batch ships to waitlist - limited v1 units, no waitlist inflation
  • Early-access pricing locked for waitlist members
  • Behind-the-scenes build logs and design decisions
  • Direct input into what Crouton ships with
Antler · AUS16