Setup

One URL, one OAuth flow, a recipe per client. The gateway speaks MCP over streamable HTTP at https://gateway.ansvar.eu/mcp and registers each client via Dynamic Client Registration — there are no API keys to manage. Undecided on a client — or picking a model? See Clients and models. And once connected, give the agent its instructions: Instruct your agent.

Claude Desktop and Claude (web)

One click: Ansvar is listed in the Claude connector directory — open the listing, press Connect, sign in. Manual path: Customize → Connectors → Add custom connector.

Name: Ansvar
URL:  https://gateway.ansvar.eu/mcp

Save. Claude opens a browser for OAuth at auth.ansvar.eu. Approve the consent screen; the connector flips to Connected and tokens refresh silently after that.

Claude Code

claude mcp add --transport http ansvar https://gateway.ansvar.eu/mcp

Then start Claude, run /mcp, choose Authenticate. The token lands in ~/.claude.json.

VS Code (Copilot agent mode)

Two ways — the settings UI or the config file. Both end at the same browser login.

From the settings UI: open the Command Palette, run MCP: Add Server, choose the HTTP server type, and paste the URL:

https://gateway.ansvar.eu/mcp

Or edit .vscode/mcp.json directly:

{
  "servers": {
    "ansvar": {
      "url": "https://gateway.ansvar.eu/mcp"
    }
  }
}

Either way, trigger a Copilot agent action that touches an MCP server — VS Code opens the OAuth flow on first use.

Cursor

Cursor Settings → MCP (labelled Tools & MCP in newer builds) → Add Server.

Name: ansvar
URL:  https://gateway.ansvar.eu/mcp

Cursor opens the OAuth flow when you save the server entry. For the mcp.json file locations, plan gating, and troubleshooting, see Connect Cursor.

Gemini CLI

gemini mcp add --transport http ansvar https://gateway.ansvar.eu/mcp

Then start gemini, run /mcp auth ansvar, and approve the browser login. Requires gemini-cli v0.44.0+ — earlier versions lose authentication when the short-lived token rotates mid-session. Using Gemini Code Assist, Antigravity, Gemini Enterprise, or the Gemini app? Each works differently — see Connect Gemini.