AiVikings.ai MCP Server (official)

The official Model Context Protocol server for AiVikings.ai, the domain registrar built for AI agents. It lets ChatGPT, Claude, Cursor and any agent that supports MCP check availability, register and renew domains, and manage DNS, contacts and transfers.

No install needed. AiVikings.ai runs this server at:

https://mcp.aivikings.ai/mcp

Setup guides, the full tool reference and pricing: aivikings.ai/docs/mcp

Connect

You need an AiVikings.ai account. Create one at app.aivikings.ai.

The server uses OAuth. On first use your client opens an AiVikings.ai page where you approve the connection. Today that page asks you to paste the API token from your dashboard.

Claude Code

claude mcp add --transport http aivikings https://mcp.aivikings.ai/mcp

Claude (web and desktop)

Add a custom connector with the URL https://mcp.aivikings.ai/mcp. Step by step: Claude setup.

ChatGPT

Add a connector with the URL https://mcp.aivikings.ai/mcp and OAuth authentication. Step by step: ChatGPT setup.

Cursor

Add to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "aivikings": {
      "url": "https://mcp.aivikings.ai/mcp"
    }
  }
}

VS Code

Add to .vscode/mcp.json:

{
  "servers": {
    "aivikings": {
      "type": "http",
      "url": "https://mcp.aivikings.ai/mcp"
    }
  }
}

Cline and other agents

Agents that install MCP servers for you can follow llms-install.md.

Unattended agents (LangChain, CrewAI, scripts)

Agents without a browser can't complete OAuth. Send your AiVikings.ai API key as a bearer token instead:

{
  "mcpServers": {
    "aivikings": {
      "type": "streamableHttp",
      "url": "https://mcp.aivikings.ai/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_AIVIKINGS_API_KEY"
      }
    }
  }
}

Optional X-Agent-Id and X-Agent-Name headers label your agent's actions in the domain audit log.

Try it

Once connected, ask your assistant:

• "Is cartandcup.com available, and what would it cost to register and renew?"
• "Brainstorm 20 names for a weather analytics project and check which .com and .io domains are free."
• "Register nightowlanalytics.com for one year using my default contact."
• "Point the root of nightowlanalytics.com to 203.0.113.10 and add a www CNAME."
• "Show my domains with their status and expiry dates."

Tools

Full descriptions and parameters: tool reference.

Built for agents

• Prepaid balance. Registrations, renewals and transfers are paid from your prepaid USD or EUR balance. No card is charged by a tool call.
• Premium domains need a yes. A premium-priced domain is only registered when the agent passes allow_premium=true after the user accepted the quoted price.
• Safety annotations. Every tool is marked read-only or write, and destructive tools (such as delete_dns_record) are flagged, so clients can ask before running them.
• Audit log. Every change to a domain is recorded and can be read back with get_domain_audit_log.
• Pure registrar. No hosting or email upsells in the purchase flow.

Privacy and security

This server is a thin adapter. Each request carries your own OAuth token or API key, which is verified by the AiVikings.ai backend and forwarded with each tool call. The adapter stores no credentials and has no privileged fallback token. Internal backend error details are never passed back to the client.

• Privacy policy: aivikings.ai/legal/privacy
• Report a vulnerability: see SECURITY.md

Support

• Questions and ideas: GitHub Discussions
• Bugs: GitHub Issues
• Email: support@aivikings.ai

Self-hosting the adapter

Most users should connect to the hosted server above. This section is for running the adapter yourself in front of an AiVikings.ai backend.

The adapter is a public Streamable HTTP MCP layer over the AiVikings.ai registrar REST API. The tools keep their parameter schemas, descriptions and safety annotations, and call the backend over HTTP. The backend owns business logic, authentication, customer isolation, scopes, provider access and audit persistence.

This repository contains no registrar backend, database models, provider adapters, frontend assets, internal runbooks or production environment files. It installs and builds without access to either private repository.

Run locally

Requires Python 3.12+ and a running AiVikings.ai backend exposing /v1/mcp.

python3 -m venv .venv
. .venv/bin/activate
python -m pip install -e ".[dev]"
cp .env.example .env
# Configure AIVIKINGS_API_BASE_URL to reach the backend.
aivikings-mcp

The endpoint is http://127.0.0.1:8081/mcp. Clients send their own AiVikings.ai bearer API key or OAuth access token. The adapter verifies it through the backend and forwards it with each tool call. There is no privileged fallback token. Token revocation and customer/scope checks stay authoritative in the backend. Anonymous initialize, tools/list and ping discovery remain available.

GET /healthz is a local process health check, not an upstream readiness check. /.well-known/oauth-protected-resource advertises the public backend as the OAuth authorization server. AIVIKINGS_API_BASE_URL is an internal HTTP address; AIVIKINGS_PUBLIC_API_BASE_URL and AIVIKINGS_MCP_URL must be externally reachable for real OAuth clients. OAuth issuance and signing secrets remain in the backend.

Docker

docker compose up --build

The standalone Compose default reaches the backend's published port 8080 using host.docker.internal. Set the upstream/public URLs for your deployment. If you copy .env.example first, replace its localhost upstream with an address reachable from inside the container. No private source checkout is mounted.

Tests

pytest

Tests use a simulated HTTP backend and exercise discovery, bearer challenges, per-request identity, tool schemas and error sanitization without a database. Backend rejection is returned as an HTTP-status tool error; private upstream response bodies are not exposed to MCP clients. Review backend logs for details.

The optional Claude demonstration client is installed with python -m pip install -e ".[demo]"; configure its client-side ANTHROPIC_API_KEY and AIVIKINGS_MCP_API_KEY before aivikings-demo-agent. Its sample transcript in examples/ is historical and illustrative.

License

MIT