Power your agent
The publisher's own URL. Not a PlugMCP endpoint.
Host a copy with our keys and logs.
https://openunfurl.vercel.app/api/mcpThe Claude button above opens Claude with the name and URL filled in. You still confirm it there.
claude mcp add --transport http io.github.solvohq-openunfurl https://openunfurl.vercel.app/api/mcpRun in a terminal.
{ "mcpServers": { "io.github.solvohq-openunfurl": { "command": "npx", "args": [ "-y", "mcp-remote", "https://openunfurl.vercel.app/api/mcp" ] } }}claude_desktop_config.json
Remote URL or a command on your machine? How the two installs differ
Run on PlugMCP
A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.
LaunchFrom the publisher
A zero-signup link-unfurl / link-preview API. No account, no API key — one GET request.
Give it any public URL, get back clean preview metadata (title, description, image, siteName, favicon, Open Graph / Twitter Card, oembed) as JSON. Built so autonomous AI agents can use it as a tool — an agent has no human to do a signup.
Zero-signup anonymous link-unfurl API. One GET returns clean JSON metadata for any public URL.
curl "https://openunfurl.vercel.app/api/unfurl?url=https://github.com"
Sample response:
{
"url": "https://github.com",
"resolvedUrl": "https://github.com/",
"title": "GitHub · Build and ship software on a single, collaborative platform",
"description": "Join the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.",
"image": "https://github.githubassets.com/assets/campaign-social-031d6161fa10.png",
"siteName": "GitHub",
"type": "object",
"favicon": "https://github.githubassets.com/favicons/favicon.svg",
"oembed": null,
"fetchedAt": "2026-05-17T00:00:00.000Z",
"engine": "static-html-v0.1",
"note": "v0.1 parses static HTML only — no JS/SPA render"
}
Any missing field is null. Errors return JSON with an error key and an
appropriate HTTP status (400 bad/blocked/missing URL, 422 fetch failed,
429 rate limited, 405 wrong method).
const base = "https://openunfurl.vercel.app";
const r = await fetch(
base + "/api/unfurl?url=" + encodeURIComponent("https://example.com")
);
const meta = await r.json(); // { title, description, image, favicon, ... }
OpenUnfurl is also a remote MCP server, so an agent can call it as a tool with no signup, no API key, no OAuth.
https://openunfurl.vercel.app/api/mcpapplication/json response — no sessions, no SSE)unfurl — input { "url": "https://example.com" },
returns the same preview JSON as the REST endpoint (also as structuredContent)Drop this into any MCP client config (Claude Desktop, Cursor, or any client that speaks the Streamable HTTP transport):
{ "mcpServers": { "openunfurl": { "url": "https://openunfurl.vercel.app/api/mcp" } } }
Quick smoke test:
curl -s -X POST https://openunfurl.vercel.app/api/mcp \
-H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"unfurl","arguments":{"url":"https://example.com"}}}'
Over MCP, an upstream error comes back as a tool result with isError: true.
Managed link-preview alternatives — Microlink, OpenGraph.io, LinkPreview.net,
Unfurl.io, LinkPeek — all gate even their free tier behind a signup and/or an
API key. OpenUnfurl does not: it's a single anonymous GET (or one MCP
tools/call). That's especially useful to autonomous agents, which have no
human in the loop to complete a signup or paste in a key.
<meta> tags client-side you get the static fallback.The entire API is two single zero-dependency Node serverless functions:
api/unfurl.js (REST) and api/mcp.js (remote
MCP). No npm install, no cheerio/jsdom. Deploy the folder to Vercel
(zero-config /api detection) or drop the handlers into any Node serverless
runtime.
git clone https://github.com/SolvoHQ/openunfurl
cd openunfurl
npx vercel --prod
MIT — see LICENSE.
© 2026 MCP Directory.
Zero-signup anonymous link-unfurl API. One GET returns clean JSON metadata for any public URL.
{ "mcpServers": { "io.github.solvohq-openunfurl": { "url": "https://openunfurl.vercel.app/api/mcp", "headers": {} } }}Tools
No tool list yet. Remote servers get one after the first health check.
FAQ
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
No required environment variable is listed on this record.
Openunfurl is reached over HTTP.
Last checked 2026-11-09. Zero-signup anonymous link-unfurl API. One GET returns clean JSON metadata for any public URL.