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Zovo Sankey MCP Server

by theluckystrike Your server? Claim it
answering

Zovo Sankey is answering right now. Last checked 2 min ago. It exposes 2 tools.

Turns flow data (from, to and amount) into a Sankey diagram you can download and print.

Uptime history 48 hours of history
48 hours agonow
100.0%
Uptime 24h
91 of 91 checks
2
Tools
read from the server
388 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Zovo Sankey every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

run in your terminal
claude mcp add sankey-diagram --transport http https://sankey-diagram.zovo.one/mcp
Settings → Connectors → Add custom connector, then paste this address
https://sankey-diagram.zovo.one/mcp
~/.codex/config.toml
[mcp_servers.sankey-diagram]
url = "https://sankey-diagram.zovo.one/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "sankey-diagram": {
      "url": "https://sankey-diagram.zovo.one/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "sankey-diagram": {
      "type": "http",
      "url": "https://sankey-diagram.zovo.one/mcp"
    }
  }
}

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

flows
check_flows
Use this when the user wants to check flow data before drawing a Sankey diagram, for example "do my flows balance" or "why will this Sankey not draw". Takes flows as from, to and amount (pasted text or a list), up to 200 flows and 100 nodes. Returns the problems found, each with its row (unreadable lines, blank names, zero, negative or ambiguous amounts, flows from a node to itself), loops named as paths, pairs that appear more than once, the column of each node, a balance table of inflow and outflow for middle nodes and totals per column. Does not draw the diagram and does not change the data.
make
make_sankey
Use this when the user wants a Sankey diagram, flow diagram or alluvial-style chart of amounts moving between stages, for example a budget (income to spending), an energy balance, a sales funnel or website traffic paths. Takes flows as from, to and amount (pasted text or a list), up to 200 flows and 100 nodes, plus a title, unit, node order, link colour and PDF page size. Returns node totals, a balance table, totals per column, a proportion check of link widths and node heights, label overlap results, an interactive diagram, and SVG, PDF and CSV downloads. Refuses loops, flows from a node to itself, zero or negative amounts and ambiguous amounts such as 1,234 without a decimal_mark. Does not read files, fetch data from other apps or save diagrams.

Endpoints

URLTransportStateLatencyChecked
https://sankey-diagram.zovo.one/mcp streamable-http answering 79 ms 2 min ago

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Zovo Sankey — questions

Answers built from our own checks of this server.

What can Zovo Sankey do?
It exposes 2 tools, read directly from the server on our last check. Among them: check_flows, make_sankey. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Zovo Sankey working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 388 ms. The bar chart above shows every period we have measured.
How do I connect Zovo Sankey?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Zovo Sankey need an API key?
No. Zovo Sankey completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Zovo Sankey?
It answers our handshake in 388 ms on average, which is faster than 32% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.