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Pyxmark

Official registry Other

Vendor checks: sanctions lists, SEC filings, domain age and a due-diligence report with sources.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http pyxmark 'https://mcp.pyxmark.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "pyxmark": {
            "type": "http",
            "url": "https://mcp.pyxmark.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Pyxmark
  2. Connect
  3. Tools
  4. Try asking
  5. Read this

Pyxmark

Check a company before you pay it. Pyxmark is a hosted MCP server that screens a company or person against the OFAC, UN, EU and UK sanctions lists, looks the company up in SEC EDGAR, checks its web domain's age and email records, and puts it together in a due-diligence report with a clear, review or hold verdict. Every result links to the official record and says when each list was last synced.

This repository holds listing and install files only. The server is hosted; its code isn't published here.

Connect

Server URL: https://mcp.pyxmark.com/mcp (Streamable HTTP). No sign in and no key.

Claude (claude.ai and Claude Desktop): Customize → Connectors → + Add → Add custom connector. Name it Pyxmark, paste the server URL, choose No sign in, then Add. Free plans allow one custom connector. On Team and Enterprise an owner adds it first under Organization settings → Connectors.

Claude Code

claude mcp add --transport http pyxmark https://mcp.pyxmark.com/mcp

ChatGPT (web): Plugins → + → Add custom MCP server. Name it Pyxmark, paste the server URL, pick No authentication, tick the risk box, then Create as a plugin. Install it and pick it with @ in a chat. You don't need Developer mode. OpenAI offers this on Business, Enterprise and Edu (admins and owners add it) and on Pro.

Codex and the ChatGPT desktop app

codex mcp add pyxmark --url https://mcp.pyxmark.com/mcp

Or in the desktop app: Settings → MCP servers → Add server, choose Streamable HTTP and paste the URL.

Cursor: use the Install in Cursor button, or add this to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (one project):

{ "mcpServers": { "pyxmark": { "url": "https://mcp.pyxmark.com/mcp" } } }

VS Code (GitHub Copilot): use the Install in VS Code button, or run MCP: Add Server from the Command Palette, choose HTTP and paste the URL. From a terminal:

code --add-mcp '{"name":"pyxmark","type":"http","url":"https://mcp.pyxmark.com/mcp"}'

Grok: at grok.com/connectors choose New Connector, then Custom, and paste the URL. On Grok Business and Enterprise a team admin adds it first. In Grok Build:

grok mcp add --transport http pyxmark https://mcp.pyxmark.com/mcp

Grok Bot: there's no settings form. Tell your bot "Add this MCP server: https://mcp.pyxmark.com/mcp";. It confirms, and the tools work from your next message. (This comes from a Grok Bot staff answer; there's no doc page for it yet.)

Gemini CLI

gemini mcp add --transport http -s user pyxmark https://mcp.pyxmark.com/mcp

Other clients: most read the standard block below, which is also this repo's .mcp.json (Claude Code, VS Code and Grok Build pick it up from a project root). Clients that only run local stdio servers can use npx -y mcp-remote https://mcp.pyxmark.com/mcp.

{ "mcpServers": { "pyxmark": { "type": "http", "url": "https://mcp.pyxmark.com/mcp" } } }

Check it works: ask "List the Pyxmark tools". You should see 7 read-only tools. Then ask "Is Microsoft Corporation on any sanctions list?" It should come back with no match.

AI agents setting this up for a user: follow llms-install.md.

Tools

Six tools are listed today, all read-only. A seventh, check_exclusions (SAM.gov federal exclusions), is added to the list once SAM.gov data has synced; until then each due_diligence_report includes a link to search SAM.gov yourself.

ToolWhat it does
due_diligence_reportOne report on a vendor: sanctions screen, SEC record and risk filings, domain age, first Wayback Machine snapshot and email records, ending in a clear, review or hold verdict with reasons
screen_sanctionsFuzzy-screens a name against OFAC SDN and Consolidated, UN, EU and UK lists. Optional birth date, nationality and country tell apart people with the same name. Optional address, email, phone, website, IDs and owners are matched against what the lists record, including sanctioned regions and the OFAC 50 percent rule
search_companyFinds which SEC-registered company a name, ticker or CIK refers to
company_profileThe SEC EDGAR record for one company: identity, address, three years of key financials and recent filings
domain_ageDomain registration date and registrar (RDAP, with a WHOIS fallback), its MX, SPF and DMARC records, and the date of its first Wayback Machine snapshot
state_registry_linkA link to the US state business registry search for a company

Try asking

  • "Run a due diligence report on Acme Corp, acme.com, Delaware."
  • "Is this supplier on any sanctions list?"
  • "Show me Tesla's last three years of revenue and recent 8-Ks."

Read this

Results are informational, not a compliance determination. Names are matched fuzzily, so check any potential match against the linked official entry before you act. Pyxmark isn't for consumer screening (credit, jobs, housing, insurance or tenancy).

Privacy: https://pyxmark.com/privacy · Terms: https://pyxmark.com/terms

UK Sanctions List data contains public sector information licensed under the Open Government Licence v3.0.

Frequently asked questions

What is Pyxmark?

Vendor checks: sanctions lists, SEC filings, domain age and a due-diligence report with sources.

How do I install Pyxmark?

It runs as a remote server. In Claude Code: claude mcp add --transport http pyxmark 'https://mcp.pyxmark.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Pyxmark need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Pyxmark open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Pyxmark?

It is published by pyxmark. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.