// pricing

Free to Simulate. Pay for AI.

The circuit simulator is free forever — every board, every component. You only pay when the AI builder does the work for you.

Free

$0

Discover the simulator + a taste of AI.

  • Full simulator: 30+ boards, 48+ components
  • Real ESP32 / RP2040 CPU emulation
  • 1 free AI build every day
  • Public projects

Open the Simulator

AI Credits

$1.99 / 5 builds

Pay per use. No subscription.

  • 5 AI builds, use them any time
  • 20-build pack $6.99 (best value)
  • Credits never expire
  • Stacks on top of the free daily build

Buy 5 Builds — $1.9920 Builds — $6.99 best value

Most Popular

Maker

$14.99 / month

For makers shipping real circuits with AI help.

  • 12 AI builds per day
  • Unlisted projects
  • Priority compile queue
  • Unlimited simulator run time

Get Maker — $14.99/mo

Pro

$19.99 / month

Private work and export everything.

  • 50 AI builds per day
  • Private projects
  • BOM CSV + schematic PNG export
  • Watermark-free embeds

Get Pro — $19.99/mo

// credits & plans land in your account the moment payment clears · secure checkout via stripe

classroom & team plans — talk to us · every kit purchase includes priority build support

MCP access included in every tier

Drive sensbench from your AI agent instead of the browser. The MCP server at app.sensbench.com/mcp gives Claude, Cursor, and other MCP clients real tools: compile Arduino/ESP32 projects, build and edit circuits, and import Wokwi diagrams.

Billing is per successful compile, drawn from the same balance as the AI Builder — no separate subscription. Free accounts get 1 call a day, credits never expire, and Maker/Pro daily allowances apply to MCP calls too.

MCP usage by tier

  • Free — 1 call / day — $0
  • Credits-5 — 5 calls, never expire — $1.99
  • Credits-20 — 20 calls, never expire — $6.99
  • Maker — 12 calls / day — $14.99 / 30 days
  • Pro — 50 calls / day — $19.99 / 30 days

Get started in three steps

  • Create a free account
  • Copy your key at My Account → MCP Access
  • Paste it into your agent’s MCP config — done

Q: Do MCP calls cost extra?
A: No. MCP calls draw from the same quota as the AI Builder: every account gets 1 free call per day, credit packs start at $1.99 and never expire, Maker/Pro raise the daily allowance to 12/50. Only successful compiles are billed.