Fetch Rich Metadata from URLs
Pull the title, description, thumbnail image, and Open Graph data from any public URL.
Populate Link Cards and Embeds
Fetch metadata from shared URLs to power link card previews in your application or content feed.
Tool
Link cards — the rich previews that appear when a URL is shared in a messaging app, a knowledge base, or a social feed — require fetching and parsing metadata from the target URL. Building this as a custom feature means writing an HTTP client, parsing HTML, extracting the right meta tags, and handling edge cases for the thousands of sites users might share.
The preview_url skill does this reliably for any public URL, returning a structured object with all the fields needed to render a link card: title, description, thumbnail image, site name, and URL. No custom parsing required.
Developers building Slack-like messaging apps, teams maintaining curated resource libraries, and product teams adding link sharing to their platform all use this to add rich link previews without building a custom unfurl service.
Agent Guides
Claude
- Connect ToolRouter to Claude: claude mcp add toolrouter -- npx -y toolrouter-mcp
- Ask: "Get link card metadata for: [paste URL]"
- Claude returns the structured preview data
ChatGPT
- Add ToolRouter to ChatGPT using the MCP JSON configuration
- Ask: "Fetch link card data for these URLs and format as a table"
- ChatGPT returns the structured metadata for each URL
Copilot
- Add ToolRouter to your Copilot MCP configuration
- In Copilot Chat: "Fetch link card data for this URL: [url]"
- Copilot returns the metadata
OpenClaw
- Connect ToolRouter to OpenClaw: openclaw mcp add toolrouter -- npx -y toolrouter-mcp
- Provide a list of URLs: "Fetch link card data for all of these"
- OpenClaw retrieves metadata for each URL
Related Use Cases
Audit Open Graph Tags Across Pages
Check whether pages are correctly set up for social sharing by auditing their Open Graph metadata.