Access and Authentication

The Athenium Weather MCP supports three authentication methods, so you can connect from any MCP-capable client, automation script, or API integration without locking into a single auth scheme:

• OAuth 2.1 with Dynamic Client Registration (DCR): zero-configuration setup for modern MCP clients.
• OAuth 2.0: for clients on the older OAuth standard.
• API key (x-api-key header): for headless services and the Weather Risk MCP.

All three back the same tools and data. Pick the one that matches your client.

Connection options

OAuth 2.1 + DCR

Connect to the primary Weather MCP at:

https://mcp.barocline.com/mcp

This endpoint speaks OAuth 2.1 with Dynamic Client Registration. Your MCP client registers itself with our authorization server on first connection, with no manual client_id / client_secret provisioning, no support ticket, and no copy-paste between dashboards.

On first connection, the client discovers the authorization server, registers dynamically, and prompts you to sign in through Athenium. Tokens are issued, stored, and refreshed automatically by the client; subsequent connections require no further interaction until the refresh token expires.

Modern MCP clients (Claude Desktop, Cursor, ChatGPT, and most tooling released alongside the MCP spec) handle this end-to-end.

OAuth 2.0

Connect at:

https://mcpoauth.barocline.com/mcp

Use this when your client doesn't support Dynamic Client Registration. Clients here need a pre-registered OAuth application (client_id / client_secret) that can be provided to users by contacting customer.support@athenium.com after registration.

API key (x-api-key)

Connect to the Weather Risk MCP at:

https://mcpkey.barocline.com/weather-risk/mcp

Authenticate every request with the x-api-key header:

x-api-key: YOUR_API_KEY

Use this for server-to-server integrations, scheduled jobs, or anything that can't host an interactive browser flow. Request a key after registration by contacting customer.support@athenium.com.

Request access

Self-register at Athenium MCP Registration or contact customer.support@athenium.com if you need further assistance or want to enroll in Enterprise plans.

Rate limits

Rate limits are applied per account. Default limits:

If you need higher limits, contact your account representative.