All your tools. None of your passwords. Danube is a marketplace for AI agent tools. One API key unlocks 100+ integrations including Slack, GitHub, Gmail, and Stripe, with no per-service OAuth. Publishers register an OpenAPI or MCP spec, set per-execution pricing, and get paid every time an agent calls their tool. Security-first: agents never see your credentials. You approve access via device flow and revoke anytime. B2A: Business-to-Agent. The new distribution channel.

Framer — Launch websites with enterprise needs at startup speeds.

Launch websites with enterprise needs at startup speeds.

Hey Product Hunt!

I'm Preston, the founder of Danube.

Two problems kept bugging me.

First: I wasted hours setting up tools with Claude Code and OpenClaw. Every service has different auth, rate limits, and quirks. I was constantly worried about my API keys and passwords being exposed.

Second: tool builders have no distribution channel to AI agents. Agents are becoming massive consumers of services, and there's no marketplace for that yet.

Danube solves both. Agents get one connection for everything. Publishers get distribution and revenue. And it's secure. Agents never touch your credentials. You approve access, revoke anytime, and see every call.

Business-to-Agent. The agent economy needs infrastructure. We're building it.

Are you building tools you'd want to publish? Would love to talk.