I needed a reusable chart step for agent graphs. LLMs can make tables; they still struggle to produce a durable, shareable chart.
Published a small LangGraph node + CrewAI example:
https://github.com/Browncabinet/tablecharts-agent-node
Flow: agent has rows → POST to TableCharts → get dashboard_url + embed_iframe.
Demo: PASTE_EMBED_URL
MCP: npx -y @tablecharts/mcp-server
Agent card: https://tablecharts.co/.well-known/agent-card.json
Happy to hear if this is the wrong abstraction for a LangGraph tool node.