Veqen
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MCP server for AI agents

Connect Veqen to Claude, ChatGPT, Cursor or any MCP client. OAuth or API key, the tools available, and what they cost.

Veqen runs a remote Model Context Protocol server. Any MCP client can call the same checks as the REST API, using the same credits.

Server URL: https://veqen-app.com/mcp (streamable HTTP)

Connect with OAuth (Claude, ChatGPT and other apps)

  1. In your client, add a custom connector (or "remote MCP server") with the URL above.
  2. When asked, sign in to Veqen and click Allow access.
  3. Done. No key is copied anywhere. You can disconnect it later in Settings → Connected apps.

The server supports OAuth 2.1 with dynamic client registration and PKCE, as the MCP spec requires. Discovery documents live at /.well-known/oauth-protected-resource/mcp and /.well-known/oauth-authorization-server.

Connect with an API key (Claude Code, Cursor, scripts)

Send your API key as a Bearer token.

claude mcp add --transport http veqen https://veqen-app.com/mcp \
  --header "Authorization: Bearer $VEQEN_API_KEY"

{
  "mcpServers": {
    "veqen": {
      "url": "https://veqen-app.com/mcp",
      "headers": { "Authorization": "Bearer vq_live_..." }
    }
  }
}

{
  "mcpServers": {
    "veqen": {
      "type": "http",
      "url": "https://veqen-app.com/mcp",
      "headers": { "Authorization": "Bearer vq_live_..." }
    }
  }
}

Tools

Tool Use it when Credits
check_email_address Someone gives an email and you need to know if it's real, throwaway or a typo. Optional verify_mailbox. 1 (+5)
check_ip_address You have a visitor's IP and need location, network owner, or datacenter/VPN/Tor status. 1
check_phone_number You need to validate or format a number, or know if it's mobile, VoIP or toll-free. 1
check_domain_name You need to know if a company domain exists, receives mail, and how old it is. 1
check_signup_risk You're deciding whether to accept a signup or lead and have several details about the person. 3 (+5)
get_balance You want to know how many credits are left. 0

Check tools spend account credits, so they are marked as metered operations rather than read-only. get_balance is read-only. Agents cannot change account settings, buy credit packs or see API keys. Results are the same JSON as the REST API, plus a credits object with what was charged and what remains. If you enable auto top-up, spending credits can trigger the automatic payment you configured.

Example prompts

  • "Check these 20 new signups from today's export and list the ones you'd refuse, with reasons."
  • "Before you add this lead to the CRM, check that the email and company domain are real."
  • "Is +44 56 1234 5678 a mobile number? Format it for our SMS provider."

Errors

Tool errors come back as MCP tool errors with the same type as the REST API, for example insufficient_credits: This call needs 3 credits and you have 0. Agents can read them and tell you what to do.