OnionLens Tor Tools

MCP server · hosted · v0.1.2 · org.onionlens/tor-tools

Online · tested 2h agoNEW · 3h agoSeen in the registry 2h ago

Tor address validation and retrieval fixtures, with disclosed research logging.

What it does

OnionLens Tor Tools is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

From the publisher's description, Electra Index matched it to one capability: debugging. That makes it a candidate for tasks such as fix bugs in a codebase or monitor production incidents.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence) and are not a test of the tool.

At a glance

Hosted (remote)YES

Local installNO

Live checkOnline · 3 tools

Version0.1.2

PriceNot in the registry

First seen23 Oct 2026

Last checked2h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 2h ago (live check)

Hosted endpoint

https://onionlens.org/mcp streamable-http

In Claude Code: claude mcp add --transport http onionlens-tor-tools https://onionlens.org/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "onionlens-tor-tools": {
      "url": "https://onionlens.org/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 2h ago

ONLINE OnionLens Tor Tools answered an MCP connection on 23 Oct 2026 and introduced itself as onionlens 0.1.2 (MCP protocol 2025-06-18).

3 tools offered to AI assistants

validate_onion_address · Validate a Tor v3 address format, version and checksum without a network request.
list_resources · List primary-source Tor integration references and controlled retrieval fixtures.
retrieval_fixture · Return a deterministic UTF-8 retrieval fixture for transport and parsing checks.

What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.

Tasks it helps with

Share of each task's required capabilities it covers

Fix bugs in a codebase Debugging	50%
Monitor production incidents Debugging	33%

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Ready-made AI agents

An MCP server is a connector you add to your own assistant. These are finished products that do the same job for you:

Claude Code77
$20/mo
OpenHands54
Free plan
Cursor53
$20/mo · free plan

Facts & evidence

Each fact shows where it was seen and when.

Fact	Value	Evidence	Source	Last confirmed
Hosted endpoint	https://onionlens.org/mcp	DECLARED	SRC-001 Official MCP Registry	2h ago
Local install (package)	no	DECLARED	SRC-001 Official MCP Registry	2h ago
Remote access (hosted)	yes	DECLARED	SRC-001 Official MCP Registry	2h ago
Website	https://onionlens.org/docs/#mcp	DECLARED	SRC-001 Official MCP Registry	2h ago
Repository	https://github.com/NellInc/OnionLens-public	DECLARED	SRC-001 Official MCP Registry	2h ago
Registry status	active	DECLARED	SRC-001 Official MCP Registry	2h ago
Version	0.1.2	DECLARED	SRC-001 Official MCP Registry	2h ago
MCP server	yes	DECLARED	SRC-001 Official MCP Registry	2h ago

Change history

NEW23 Oct 2026
first seen in the index

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Questions about OnionLens Tor Tools

How do I connect OnionLens Tor Tools?

Use the hosted endpoint https://onionlens.org/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does OnionLens Tor Tools offer?

When Electra Index connected on 23 Oct 2026, it listed 3 tools: validate_onion_address, list_resources, retrieval_fixture. The full list is in "Live check" above.

Is OnionLens Tor Tools online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 2h ago.

What can I use OnionLens Tor Tools for?

Based on its description, it is most relevant to: fix bugs in a codebase, monitor production incidents.