Diagrams is a remote MCP server that gives an AI agent 9 tools, among them find_equivalent, list_categories, list_nodes. It answers at https://diagrams-mcp-production.up.railway.app/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 22 October 2026, succeeded.
Generate cloud architecture diagrams, flowcharts, and sequence diagrams.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
find_equivalent | Find cross-provider equivalents for a diagram node by infrastructure role. Given a node name (e.g. 'EC2', 'Lambda', 'ComputeEngine'), returns the infrastructure role category it belongs to and the equivalent nodes from other providers. If a Inputs: node, target_provider |
list_categories | List all infrastructure role categories with their mapped nodes. Use this to browse all available equivalence mappings, or to disambiguate node names when find_equivalent reports ambiguity. Returns a list of category dicts, each with: categ |
list_nodes | List available node classes for a provider.service combo. Args: provider: Provider name (e.g. 'aws', 'gcp', 'k8s'). service: Service category (e.g. 'compute', 'database', 'network'). Returns: List of nodes with keys: name, import, alias_of Inputs: provider, service |
list_providers | List all available diagram providers (aws, gcp, azure, k8s, onprem, etc.). Use list_providers -> list_services -> list_nodes to browse available node types for a specific provider. |
list_services | List service categories for a provider (e.g. 'aws' -> ['compute', 'database', ...]). Args: provider: Provider name from list_providers (e.g. 'aws', 'gcp', 'k8s'). Inputs: provider |
render_diagram | Render a mingrammer/diagrams Python snippet to PNG and return the image. The code must be a complete Python script using `from diagrams import ...` imports and a `with Diagram(...)` context manager block. Use search_nodes to verify node nam Inputs: code, filename, format, download_link |
render_mermaid | Render a Mermaid diagram definition and return the image with metadata. The definition should be valid Mermaid syntax (e.g. flowchart, sequence, class, ER, state, or Gantt diagram). Returns a list of content blocks: the rendered image plus Inputs: definition, filename, format, download_link |
render_plantuml | Render a PlantUML diagram definition and return the image. The definition should be valid PlantUML syntax wrapped in @startuml/@enduml (sequence, class, component, activity, state, deployment, etc.). Args: definition: PlantUML diagram defin Inputs: definition, filename, format, download_link |
search_nodes | Search for diagram nodes by keyword across all providers and services. For targeted browsing when you know the provider, use list_providers -> list_services -> list_nodes instead. Args: query: Search term (case-insensitive substring match). Inputs: query |
Every block below points at https://diagrams-mcp-production.up.railway.app/mcp. Pick your client and copy.
claude mcp add --transport http diagrams https://diagrams-mcp-production.up.railway.app/mcp
{
"mcpServers": {
"diagrams": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://diagrams-mcp-production.up.railway.app/mcp"]
}
}
}{
"mcpServers": {
"diagrams": {
"url": "https://diagrams-mcp-production.up.railway.app/mcp"
}
}
}{
"servers": {
"diagrams": {
"type": "http",
"url": "https://diagrams-mcp-production.up.railway.app/mcp"
}
}
}{
"context_servers": {
"diagrams": {
"url": "https://diagrams-mcp-production.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"diagrams": {
"serverUrl": "https://diagrams-mcp-production.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"diagrams": {
"url": "https://diagrams-mcp-production.up.railway.app/mcp"
}
}
}name: Diagrams
version: 0.0.1
schema: v1
mcpServers:
- name: Diagrams
type: streamable-http
url: https://diagrams-mcp-production.up.railway.app/mcp{
"mcpServers": {
"diagrams": {
"httpUrl": "https://diagrams-mcp-production.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"diagrams": {
"type": "http",
"url": "https://diagrams-mcp-production.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"diagrams": {
"url": "https://diagrams-mcp-production.up.railway.app/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fdiagrams-mcp-production.up.railway.app%2Fmcp&type=streamable_http&id=diagrams&name=Diagrams
It answered our last check on 22 October 2026 in 119 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
9, as returned by the server's own tools/list on 17 September 2026: find_equivalent, list_categories, list_nodes, list_providers, list_services, render_diagram, render_mermaid, render_plantuml, and 1 more.
It answered our last check on 22 October 2026 in 119 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://diagrams-mcp-production.up.railway.app/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.mskry. Endpoint host: diagrams-mcp-production.up.railway.app. ARD identifier: urn:air:io.github.mskry:mcp:diagrams-mcp-server.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.