JSONlify MCP Server

by irmasemma Your server? Claim it

not responding

JSONlify is listed as active in the registry but did not answer our last check.

Validate and convert JSONL fine-tuning data across 11 AI providers. 13 tools.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 47 days of history · worst day 31%

47 days agonow

38.0%

Uptime 24h

35 of 92 checks

—

Tools

hidden behind auth

395 ms

Response time

average over 24h

open, no key

Access

streamable-http

JSONlify does not always answer

Over the last week it answered 44.5% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 5 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add jsonlify --transport http https://www.jsonlify.com/api/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "jsonlify": {
      "url": "https://www.jsonlify.com/api/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.jsonlify]
url = "https://www.jsonlify.com/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "jsonlify": {
      "url": "https://www.jsonlify.com/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "jsonlify": {
      "url": "https://www.jsonlify.com/api/mcp"
    }
  }
}

Endpoints

URL	Transport	State	Latency	Checked
https://www.jsonlify.com/api/mcp	streamable-http	answering	102 ms	5 min ago

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JSONlify — questions

Answers built from our own checks of this server.

Is JSONlify working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 35 of 92 checks got a reply (38.0%), average response time 395 ms. The bar chart above shows every period we have measured.

Is JSONlify still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

The registry lists JSONlify as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect JSONlify?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does JSONlify need an API key?

No. JSONlify completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.

How fast is JSONlify?

It answers our handshake in 395 ms on average, which is faster than 38% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.