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OpenClaw is an open-source personal AI assistant that runs locally on your computer. Connect it to Danube with OpenClaw’s native MCP client, and optionally install the Danube skill from ClawHub so agents get guided tool-usage instructions.

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Prerequisites

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Setup

1

Connect the Danube MCP Server

OpenClaw has a native MCP client - one command connects Danube:
Use your real key value in headers - OpenClaw does not expand ${DANUBE_API_KEY}-style references there. Get a key from danubeai.com/dashboard/api-keys (API Keys in the dashboard sidebar).Prefer OAuth? Use "auth":"oauth" instead of "headers", then run openclaw mcp login danube and enter your API key on Danube’s authorization page.
2

Verify the Connection

The probe should list Danube’s tools. You can now try asking OpenClaw: “List available services on Danube” or “Search for tools that can send emails.”
3

Optional: Install the Danube Skill

The Danube skill teaches OpenClaw agents how to discover, inspect, and execute Danube tools safely (including asking for confirmation before writes). OpenClaw installs it into your agent workspace directly from ClawHub:
Then make your API key available to the skill - either export DANUBE_API_KEY in your environment, or set it in openclaw.json:

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Available Tools

Once connected, OpenClaw has access to Danube’s MCP tools, including:

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Troubleshooting

Re-run the probe for a detailed report:
Check the server is reachable:
Verify the transport is streamable-http in your mcp set configuration.
This usually means your API key is invalid, expired, or not being sent correctly.Common cause: Using ${DANUBE_API_KEY} in headers instead of the actual key value - OpenClaw does not expand environment-variable references there. Re-run openclaw mcp set danube ... with the real key.Note: Danube API keys are opaque ~43-character tokens with no fixed prefix - don’t expect them to start with anything in particular.Get a new API key if needed: Visit danubeai.com/dashboard/api-keys (API Keys in the dashboard sidebar)
Check if the skill exists on ClawHub: Visit the Danube listing on ClawHub to verify the skill is available.Reinstall if needed - openclaw skills install @preston-thiele/danube --force --acknowledge-clawhub-risk overwrites a broken copy in the agent workspace.Check skill status:
A skill listed as not eligible is usually missing its API key - set skills.entries.danube.apiKey in openclaw.json or export DANUBE_API_KEY.
Restart the OpenClaw Gateway:
Check for configuration errors:

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