Cloud architecture, understood

Diagrams that know what they mean.

Write cloud architecture as text. ArchLex checks the semantics and renders a diagram your team can trust.

Open playground Connect MCP

A multi-region AWS architecture with typed failover and replication relationships rendered by ArchLex — One source · two regions · typed failover and replication

Not just boxes.

ArchLex understands cloud resources, boundaries, and typed relationships—not just shapes.

API Gateway invokes Lambda, which writes to DynamoDB — Architecture valid

Readable in code review.

Concise source stays clear in a diff. Deterministic, accessible SVG keeps every rendered review consistent.

provider aws
api: api-gateway
worker: lambda
data: dynamodb

api -[invokes]-> worker
worker -[writes]-> data

Cloud judgment for your agent.

Connect ArchLex to any MCP-capable agent. No API key required.

Add ArchLex to the shared Codex MCP configuration.

codex mcp add archlex --url https://mcp.archlex.dev/mcp

claude mcp add --transport http archlex https://mcp.archlex.dev/mcp

Add this server to .cursor/mcp.json.

{
  "mcpServers": {
    "archlex": {
      "url": "https://mcp.archlex.dev/mcp"
    }
  }
}

Add this server to .vscode/mcp.json.

{
  "servers": {
    "archlex": {
      "type": "http",
      "url": "https://mcp.archlex.dev/mcp"
    }
  }
}

Use this URL in any client that supports remote Streamable HTTP.

https://mcp.archlex.dev/mcp

Or let your agent set it up for you.

Set up the ArchLex MCP server for this project using the official remote Streamable HTTP endpoint at https://mcp.archlex.dev/mcp. Verify the connection, list the available ArchLex tools, and tell me when it is ready. Do not change unrelated MCP servers.

Then ask:

Design a resilient AWS event ingestion system, validate it, and open the result in ArchLex Playground.

4 tools · AWS + GCP · no API key

Full setup guide

Use it anywhere.

Browser + Node.js · AWS + GCP · open-source ESM

npm install @archlex/core @archlex/aws @archlex/gcp

const result = await archlex.render(source);
document.querySelector("#diagram").innerHTML = result.svg;

Open source · no account required

See your architecture clearly.

Open playground Read the docs