Developer Tools

blockwerk.tech

Provides tools to inspect, add, connect, and configure blocks on a visual canvas for building node-based workflows.

1 endpoint42 known toolsFirst detected May 29, 2026Last detected October 6, 2026

ENDPOINT 1

https://blockwerk-mcp-worker.blockwerk.workers.dev

No auth detected

MCP server metadata

Name: blockwerk-mcp
Version: 1.0.0

Capabilities

tools.listChanged

Server instructions

BlockWerk is a visual block-diagram simulation canvas. These tools drive a live blockwerk.tech browser tab over a relay. PAIRING: when a blockwerk.tech tab is paired, every tool drives that live canvas. When none is paired, the remote server still answers on its own: you can browse the block library, build and edit a diagram, inspect it, export it, and call get_share_link. Tools that need the browser (run_simulation and everything reading its results, optimisation, and jobs) require a pairing — when unpaired those return the same share link; give it to the user and ask them to open it and press Run. SHARING: get_share_link works either way and carries the whole project inside the URL. Offer it whenever the user wants to see, keep or hand off what you built. BUILD A DIAGRAM — preferred path: - For a classic system (PID loop, cruise control, inverted pendulum, a filter, a rectifier), call get_templates FIRST. These diagrams are verified and already run, so load_template removes the guessing about block types, port ids and gains entirely. Both work with or without a paired tab. - For a whole diagram in one shot, use load_diagram. It is the fastest and most reliable. Each connection MUST include a unique "id" field; omitting it fails. - For incremental edits, use: get_available_blocks (discover types + port ids) -> add_block -> connect_blocks -> run_simulation. - Parameter keys are normalized automatically: standard mathematical notation (Kp/Ki/Kd/N, frequency, lower/upper, duty_cycle) works for both add_block inline params and update_params. - Never guess block types or port ids — read get_available_blocks first. READING RESULTS (ground truth): - After run_simulation, read get_signal_data for actual values. Scope and Sink blocks automatically trace connected upstream source signals. - Inspect canvas state with describe_canvas / analyze_topology rather than assuming. CODE GENERATION: - To export standalone production code (C++/Arduino, Python, Safe Rust) from any canvas diagram, use generate_code. Use InPort and OutPort blocks to define explicit external hardware I/O interfaces. APPROVALS: clear_canvas, delete_block, load_diagram and load_template ask the user for an in-tab approval click. Use them deliberately; prefer one load_diagram over many destructive calls.

Known tools 42

describe_canvas

Returns a structured description of all blocks and connections currently on the canvas.

Inferred read-only

get_available_blocks

Returns the block types in the library with their descriptions, configurable parameters, and exact input/output port IDs.

Inferred read-only

add_block

Add a new block to the canvas.

Inferred read-only

connect_blocks

Connect an output port of one block to an input port of another.

Inferred read-only

update_params

Update one or more parameters of an existing block.

Potential side effects

delete_block

Delete a block and all its connections from the canvas.

Potential side effects

load_diagram

Atomically replaces the entire canvas with a complete diagram defined as a BlockWerk project JSON string.

Inferred read-only

export_diagram

Exports the current canvas project as a complete BlockWerk JSON string.

Inferred read-only

get_share_link

Returns a link that opens the current diagram on the BlockWerk canvas.

Inferred read-only

clear_canvas

Remove all blocks and connections from the canvas.

Potential side effects

tidy_layout

Automatically rearrange all blocks on the canvas into a clean, left-to-right flow.

Inferred read-only

batch_commands

Executes multiple canvas manipulation and background job commands in a single round-trip.

Inferred read-only

analyze_topology

Analyzes the block diagram structure: detects feedback loops, signal paths, and system order.

Inferred read-only

get_signal_data

Returns time series data from a Scope block output for analysis.

Inferred read-only

calculate_metrics

Calculates step response metrics from signal data: rise time, settling time, overshoot percentage, and steady-state error.

Inferred read-only

get_analysis_measurements

Retrieves the currently active pinned measurements and their computed values across plotted signals in the Analysis panel.

Inferred read-only

evaluate_spec_mask

Evaluates signal data against automated design specifications and tolerance corridors (rise time, settling time, overshoot %, steady-state error, min/max limits).

Inferred read-only

get_architect_memory

Returns the persistent memory object of the Architect.

Inferred read-only

update_architect_memory

Updates the persistent memory of the Architect.

Inferred read-only

validate_engineering_units

Checks the consistency of engineering units across the diagram.

Inferred read-only

validate_canvas

Performs pre-flight topological and numerical integrity checks on the canvas.

Inferred read-only

get_canvas_preview

Captures a visual screenshot preview of the canvas branded with the official BlockWerk watermark badge and returns the live interactive URL to view and edit the diagram online.

Potential side effects

get_templates

Lists the built-in, verified BlockWerk diagrams: classic control systems (PID loop, cruise control, inverted pendulum), signal processing, electrical and physics models.

Inferred read-only

load_template

Replaces the entire canvas with one of the built-in verified diagrams, by id from get_templates.

Inferred read-only

run_simulation

Triggers a new simulation run with the current canvas state and settings, refreshing the signal data.

Inferred read-only

sweep_parameter

Runs simulations across a list of values for one parameter, returning control quality metrics (IAE, overshoot, settling_time, steady_state_error) per value.

Inferred read-only

optimize_parameters

Finds the optimal value for a single parameter using golden-section search.

Inferred read-only

optimize_multi_parameter

Optimizes 2–6 parameters simultaneously using Nelder-Mead simplex search, for example Kp, Ki and Kd of a PID controller at once.

Inferred read-only

auto_tune_pid

Automatically tunes a PID controller using the Ziegler-Nichols ultimate cycle method.

Inferred read-only

identify_fopdt

Analyzes a step response from a plant to identify its First-Order Plus Dead Time (FOPDT) parameters: Gain (K), Time Constant (tau), and Dead Time (theta).

Inferred read-only

start_optimization

Start a parameter optimization job in the background.

Inferred read-only

get_job_status

Check the status and progress of a background job.

Inferred read-only

cancel_job

Cancel a running background job.

Inferred read-only

list_jobs

List all recent background jobs and their status.

Inferred read-only

explain_simulation

Analyze the last completed simulation and return a structured diagnosis: signal anomalies (NaN, divergence, oscillation), solver health (rejection rate, efficiency), algebraic loops, and optional stability margins.

Inferred read-only

get_bode_data

Computes magnitude and phase frequency response (Bode data) between two blocks.

Inferred read-only

get_fft_data

Computes FFT (frequency spectrum) of a Scope signal.

Inferred read-only

get_engine_status

Returns the simulation engine status, including supported solvers, active background jobs, and compilation/WASM capabilities.

Inferred read-only

generate_code

Generates standalone production code (C++, Python, Rust) from the current canvas diagram.

Inferred read-only

undo_last_ai_action

Undoes the last canvas modification made by the AI (add block, connect, delete, update parameter).

Potential side effects

redo_last_ai_action

Redoes the last undone canvas modification.

Inferred read-only

get_ai_history

Returns the list of recent canvas operations performed by the AI, showing what can be undone.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.blockwerk-mcp]
url = "https://blockwerk-mcp-worker.blockwerk.workers.dev"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "blockwerk-mcp": {
      "type": "http",
      "url": "https://blockwerk-mcp-worker.blockwerk.workers.dev"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: blockwerk-mcp
Remote MCP URL: https://blockwerk-mcp-worker.blockwerk.workers.dev

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "blockwerk-mcp": {
      "url": "https://blockwerk-mcp-worker.blockwerk.workers.dev"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "blockwerk-mcp": {
      "type": "http",
      "url": "https://blockwerk-mcp-worker.blockwerk.workers.dev"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "blockwerk-mcp",
  "transport": "streamable-http",
  "url": "https://blockwerk-mcp-worker.blockwerk.workers.dev"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Trust Data Available

BuiltWith Trust API v2 evidence for workers.dev was fetched 2026-09-25T13:56:19.197Z.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.