Otx

Name: Otx
Author: w0h1v

by w0h1vversion 1.2.0i★ –iRuns on your computer

Registry nameio.github.w0h1v/otx

Install

Overview

Description from the maker (original English)

MCP server for AlienVault OTX threat intelligence: indicators, pulses, search, and users.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Cybersecurity
You need to fill in: OTX_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: OTX_API_KEY, OTX_MCP_READ_WRITE

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "otx": {
      "command": "uvx",
      "args": [
        "otx-mcp"
      ],
      "env": {
        "OTX_API_KEY": "your-value",
        "OTX_MCP_READ_WRITE": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add otx --env OTX_API_KEY=your-value --env OTX_MCP_READ_WRITE=your-value -- uvx otx-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "otx": {
      "command": "uvx",
      "args": [
        "otx-mcp"
      ],
      "env": {
        "OTX_API_KEY": "your-value",
        "OTX_MCP_READ_WRITE": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "otx": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "otx-mcp"
      ],
      "env": {
        "OTX_API_KEY": "your-value",
        "OTX_MCP_READ_WRITE": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

OTX_API_KEY secret required env
Your AlienVault OTX API key
OTX_MCP_READ_WRITE env
Set to 1 to expose account-mutating tools (create/subscribe/follow/submit). Read-only by default.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account w0h1v, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Cybersecurityi

More stars than 0% of the other 993 servers in this category
Published to the registry more recently than 60% of the other 993 servers in this category
Basic checks equal to or better than 100% of the other 993 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Otx safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: OTX_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.2.0) reached the registry 26 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: ipdata MCP by usefulapi, MaxMind minFraud MCP by usefulapi, Lambda Labs MCP by usefulapi

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Quickstart · Tools · HTTP · Security · Troubleshooting · Docs

mcp-otx is an MCP server that gives AI agents access to AlienVault OTX (Open Threat Exchange, now LevelBlue). Hand your agent an IP, domain, file hash, URL or CVE, or a malware family or adversary to research, and get back what the OTX community knows: pulses, reputation, passive DNS, whois, sandbox analysis and related indicators.

[!NOTE]

Independent project, not affiliated with AlienVault or LevelBlue. You need your own OTX API key; a free account is enough.

Highlights

Full API coverage. 29 tools across pulses, indicators, users, subscriptions and URL submissions, plus resource templates for pulses and indicators.
One-call indicator enrichment. Every OTX indicator type (IPv4, IPv6, domain, hostname, file hash, URL, CVE) and detail section: reputation, geo, passive DNS, malware, whois, URL lists, HTTP scans, sandbox analysis.
Read-only by default. The 9 tools that change your OTX account only appear with --read-write.
Context-sized output. Large OTX objects are summarized and capped, with the API's total counts kept, so one lookup doesn't fill the model's context.
Safe HTTP. stdio for desktop clients, plus streamable HTTP with bearer-token auth. The server refuses to listen on a network-facing address without a token.
Tested. Unit tests against a mocked OTX API run in CI on Python 3.10 to 3.13.

How it works

flowchart LR

Quickstart

Requirements: Python 3.10 or newer, uv (or pip), and an OTX API key.

# Claude Code

claude mcp add --transport stdio --env OTX_API_KEY=your-key otx -- uvx otx-mcp

Codex CLI

codex mcp add otx --env OTX_API_KEY=your-key -- uvx otx-mcp

Gemini CLI

gemini mcp add -e OTX_API_KEY=your-key otx uvx otx-mcp

With pip: pip install otx-mcp, then use the command otx-mcp. For Claude Desktop, VS Code, Cline, Docker and running from source, see Connect a client.

Then ask your agent: *"What does OTX know about 8.8.8.8, and are there recent pulses about Emotet?"* More prompts are in example workflows.

Tools

20 read tools, plus 9 write tools with --read-write. Full parameters and real sample output are in the tool reference.

Area	Read tools	Write tools (`--read-write`)
Search	`search_pulses`, `search_users`
Pulses	`get_pulse_details`, `get_pulse_indicators`, `get_related_pulses`, `search_related_pulses`, `list_pulse_activity`, `list_subscribed_pulses`, `get_subscribed_pulse_ids`, `get_pulse_events`	`create_pulse`, `subscribe_pulse`, `unsubscribe_pulse`
Indicators	`get_indicator_details`, `validate_indicator`, `list_indicator_types`, `export_indicators`
Users	`get_user`, `get_current_user`, `list_user_pulses`, `list_my_pulses`	`subscribe_user`, `unsubscribe_user`, `follow_user`, `unfollow_user`
Submissions	`list_submitted_urls`, `list_submitted_files`	`submit_url`, `submit_urls`

Resource templates: otx://pulse/{pulse_id} and otx://indicator/{type}/{value}.

HTTP transport

stdio is the default. For remote or web clients, run streamable HTTP:

OTX_API_KEY=your-key uvx otx-mcp --transport streamable-http

→ http://127.0.0.1:8000/mcp

To listen on a network-facing address, set a bearer token. Clients must then send Authorization: Bearer :

OTX_API_KEY=your-key OTX_MCP_BEARER_TOKEN=a-long-random-secret \

uvx otx-mcp --transport streamable-http --host 0.0.0.0

docker build -t mcp-otx .

docker run --rm -p 127.0.0.1:8000:8000 -e OTX_API_KEY=your-key \ -e OTX_MCP_BEARER_TOKEN=a-long-random-secret \ -e OTX_MCP_TRANSPORT=streamable-http -e OTX_MCP_HOST=0.0.0.0 mcp-otx

OTX is slow on some endpoints (passive DNS and subscriptions can take 20 to 60 s), so give remote clients a long read timeout (120 s works).

Configuration

Variable	CLI flag	Default	Description
`OTX_API_KEY`		(required)	Your OTX API key. Also read from `.env`
`OTX_API_BASE`		`https://otx.alienvault.com/api/v1`	API root (for testing)
`OTX_MCP_TRANSPORT`	`--transport`	`stdio`	`stdio`, `streamable-http` or `sse`
`OTX_MCP_HOST`	`--host`	`127.0.0.1`	HTTP bind address
`OTX_MCP_PORT`	`--port`	`8000`	HTTP port
`OTX_MCP_READ_WRITE`	`--read-write`	off	`1` exposes the account-changing tools
`OTX_MCP_BEARER_TOKEN`		off	Require `Authorization: Bearer` on HTTP
	`--allow-remote`	off	Allow a network-facing bind without a token (not recommended)
	`--json-response`	off	Plain JSON instead of SSE streams (streamable HTTP)
	`--stateless-http`	off	A new session per request (streamable HTTP)

Security

[!WARNING]

The server acts as your OTX account. Keep it read-only unless you need the write tools, and never expose HTTP without a bearer token and TLS.

Read-only by default. Pulse creation, subscriptions, follows and URL submissions need --read-write. Editing or deleting pulses isn't exposed as a tool at all.
Untrusted content. Pulse and indicator descriptions are written by the OTX community. The server tells the model to treat them as data, not instructions.
The API key is sent only to the OTX API, in a header.

Details are in the security model. Report vulnerabilities privately; see SECURITY.md.

Troubleshooting

403 "Authentication required": the API key is wrong. get_current_user shows which account a key belongs to.
A write tool is missing: start the server with --read-write.
Timeouts: passive DNS and subscription calls can take up to 60 s. Raise your client's tool timeout.

Development

git clone https://github.com/w0h1v/mcp-otx && cd mcp-otx

uv venv && uv pip install -e ".[dev]" .venv/bin/python -m pytest # mocked OTX API, no key or network

See CONTRIBUTING.md and the changelog.

License

MIT. See LICENSE.

Otx

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Cybersecurityi

Common questions

Alternatives

ipdata MCP by usefulapi

MaxMind minFraud MCP by usefulapi

Lambda Labs MCP by usefulapi

README from the maker

Highlights

How it works

Quickstart

Codex CLI

Gemini CLI

Tools

HTTP transport

→ http://127.0.0.1:8000/mcp

Configuration

Security

Troubleshooting

Development

License