# The diagram_get_mermaid_instructions tool stops working

Calls to MCP tool diagram_get_mermaid_instructions on Miro MCP Server stopped working on September 14, 2026.

- API: Miro MCP Server (mcp.miro.com)
- Kind: Endpoint removal
- Takes effect: September 14, 2026
- Calls after that day: fail
- Calls it hits: `MCP tool diagram_get_mermaid_instructions`
- Source: [Announcement](https://developers.miro.com/changelog/20-legacy-mcp-board-tools-to-be-deprecated-migrate-by-sept-14)
- Page: https://www.okapi.bot/providers/miro-mcp-server/breaking-changes/the-diagram-get-mermaid-instructions-tool-stops-working/

## What to use instead

Call canvas_get_canvas_composer_skill plus canvas_load_format_skill instead.

## Miro MCP Server's words

> These tools were removed on September 14, 2026