Streamable HTTP MCP server for autonomous multi-layer PCB layout, trace routing, and 0-DRC KiCad/Gerber synthesis.
Scored across 15 tools
Most tools map to distinct verbs and resources, but calligraphy_route_pcb is explicitly documented as an alias for calligraphy_compile_board, giving two identical entry points for the same action. The payment surface also has several adjacent entry paths (compile returns Stripe + stablecoin instructions, plus separate Coinbase checkout and stablecoin verify tools) that require reading descriptions carefully to choose correctly.
All names are snake_case with clear verb_noun structure (analyze_kicad_pcb, audit_pcb_dfm_rules, calculate_pcb_trace_impedance, calligraphy_get_job_status). The only deviation is that the four local analysis tools omit the `calligraphy_` server prefix while the eleven remote tools include it — readable and arguably intentional, but not fully uniform.
At 15 tools the surface sits at the top of the well-scoped band; most tools earn their place across local analysis, compile/route, job lifecycle, and payments. A few are narrow one-offs (request_ip_whitelist, purge_job_vault, lookup_b2b_invoice) that inflate the count relative to core PCB workflow.
Coverage is broad: local KiCad/DSN parsing, DFM, impedance, compile, job status, fab bundle download, all three payment rails, destruction certificate, and B2B invoicing. The notable gap is job enumeration — every job-scoped tool requires a job_id and there is no list_jobs for a user's own history, only the sample gallery; there is also no cancel/refund operation.
Parse and analyze a KiCad .kicad_pcb board locally (from pcb_text or project_path). Extracts copper layer stackup, board outline dimensions (mm), footprint count, SMD vs THT pad counts, fine-pitch (<=0.50mm) pad count, net count, routed trace/arc segment statistics, and via count.
Inputs: pcb_text, project_path.
Parse and analyze a Specctra .dsn PCB autorouter file locally (from dsn_text or project_path). Extracts units, resolution, signal/power copper layers, board boundary dimensions, component count, netlist summary, and design rule clearances/widths.
Inputs: dsn_text, project_path.
Run a local Design-for-Manufacturing (DFM) rule check on a .kicad_pcb or .dsn file against standard 2-layer or 4-layer fabrication limits (minimum trace width, clearance, via hole diameter, and annular ring width).
Inputs: fab_tier, pcb_text, project_path.
Local PCB transmission-line impedance & IPC-2152 trace current calculator. Computes single-ended microstrip/stripline Z0 (Ohms), edge-coupled differential Zdiff (Ohms), propagation delay (ps/mm), and recommended trace width for a target impedance or DC current (Amps).
Inputs: er, mode, current_amps, trace_width_mm, +4 more.
Compile a PCB through Calligraphy EDA (3D HDI synthesis + Snowman teardrop pad fillets + Zero-VIPPO DFM surgery + 3D nodal G*V=I physics) and return 0-DRC telemetry, preview crops, a single clickable Stripe Checkout URL, and watch-only per-job USDT/USDC stablecoin payment instructions. Mode A (Zero-File Demo): Pass sample_id='2l_rp2040' (or '2l_stickhub', '4l_carrier'). Mode B (User's Local Board over Remote HTTP): Read the user's local .kicad_pcb, .dsn, .ato, or .tsx file and pass its contents in pcb_text + filename (or upload_b64 for .PcbDoc/.zip).
Inputs: filename, pcb_text, sample_id, upload_b64, +9 more.
Create a 1-Click Coinbase Pay / Coinbase Onchain Payment Protocol checkout session (and x402 AI-agent payment URL) settling in USDC on Base (chain_id=8453) with automatic DEX token conversion and zero gas-dust sweeping.
Inputs: job_id (required), network, currency.
Download the unlocked routed .kicad_pcb and turnkey JLCPCB/PCBWay .zip bundle (Gerbers, Excellon drills, IPC-D-356, BOM, CPL, and 3D HTML5 viewer) once paid via Stripe Checkout, autonomous USDT/USDC stablecoin verification, or active 30-day board license.
Inputs: job_id (required), output_dir, include_bundle_b64.
Query the compilation and payment status of a Calligraphy EDA job (job_id). When status is COMPLETED_AWAITING_PAYMENT, returns stablecoin_payment_instructions with the job's unique watch-only deposit_address (0x...) for autonomous USDT/USDC checkout.
Inputs: job_id (required).
List the 55 / 55 conquered open-source PCB benchmark boards (20/20 PCBench Tier T Frontier + 13/13 Tier D Torture + 22/22 Multi-ECAD — 100.0% routed, 0 native KiCad 9 copper DRC violations) and available 1-click sample demo IDs ('2l_rp2040', '2l_stickhub', '4l_carrier').
Inputs: no named parameters.
Look up a Calligraphy EDA job and generate a B2B Tax Invoice & Chain-of-Custody Certificate with custom PO number and company name.
Inputs: job_id (required), po_number, company_name, customer_email.
Inspect a .kicad_pcb file or .zip project bundle (including atopile/tscircuit/Altium/Allegro builds), verify outline/pad readiness, and return a deterministic 3-Lever NRE-anchored price quote ($149 vibe_micro for <=150 pads up to $1,495+ route_3d). Mode A (Zero-File Demo): Pass sample_id='2l_rp2040' (or '2l_stickhub', '4l_carrier'). Mode B (User's Local Board over Remote HTTP): Read the user's local .kicad_pcb, .dsn, .ato, or .tsx file and pass its contents in pcb_text + filename (or upload_b64 for .PcbDoc/.zip).
Inputs: filename, pcb_text, sample_id, upload_b64, +5 more.
Immediately shred all enclave CAD and synthesis artifacts for job_id and return a cryptographically signed CertificateOfDestruction (zero_retention_verified=True).
Inputs: job_id (required).
Submit a Support Whitelist Request for an engineering team, corporate NAT IP, or PCB layout agency that needs higher daily compilation write limits (e.g. 25–100 compiles/day).
Inputs: reason (required), customer_email (required), organization_name (required), client_ip, +1 more.
Alias for calligraphy_compile_board: synthesize and route a PCB through Calligraphy EDA (0 opens, 0 DRC) and return Stripe, Coinbase Pay (x402), and watch-only USDT/USDC payment instructions. Mode A (Zero-File Demo): Pass sample_id='2l_rp2040' (or '2l_stickhub', '4l_carrier'). Mode B (User's Local Board over Remote HTTP): Read the user's local .kicad_pcb, .dsn, .ato, or .tsx file and pass its contents in pcb_text + filename (or upload_b64 for .PcbDoc/.zip).
Inputs: filename, pcb_text, sample_id, upload_b64, +3 more.
Submit an on-chain USDT or USDC transaction hash (tx_hash) sent to the job's unique watch-only deposit_address on base, arbitrum, polygon, or ethereum to receive a private HMAC-SHA256 payment receipt (receipt_hmac_sha256) and immediately unlock calligraphy_download_fab_bundle with zero human browser intervention.
Inputs: job_id (required), tx_hash (required), token, network.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelog…
Add one secure layer between your agents and this server.