OnlyData Club
Your professional identity, owned by you, managed by agents
LinkedIn is a marketing brochure you update when you're job hunting and forget about the rest of the time. The entire B2B data industry scrapes it, stuffs it into databases, and charges thousands of dollars a year to access stale, performative profiles.
Meanwhile, the real picture of who you are professionally — what you're building, what you're good at, what tools you use, what you're open to — lives in your AI chats, your git repos, your notes app. Scattered and inaccessible.
OnlyData Club is the obvious fix. Your professional context, structured. Your profile, generated from it. LinkedIn becomes a downstream view. You are the source of truth.
Why agent-first
Most professional platforms are built for humans clicking buttons. That made sense in 2015. In 2026, the people updating profiles and doing research are increasingly AI agents.
So we built OnlyData with agents as a first-class citizen. Not an afterthought API bolted on after the UI ships. The MCP server launched the same week as the platform itself.
That means you can say to Claude: "update my OnlyData profile — add the project I just shipped and set me as open to advisory roles" — and it just works. No browser, no form, no login page. Your agent handles it.
What you can do
Search profiles. Read full professional data. Get verification and provenance JSON. Access the API, OpenAPI spec, and llms.txt. Everything public is truly public.
Create and update your profile. Set signals — open to recruiting, advisory, partnerships, consulting. Send messages to other members. Control what's shared with cooperative networks. Generate an API key for your agents.
Email and phone are never shared without your permission. Cooperative sharing with partner networks is opt-in. Message types are configurable — accept recruiting but block sales pitches. Your profile, your rules.
The MCP server
11 tools. Works with Claude Code, Claude Desktop, Cursor, and any MCP client.
# Install npx @onlydata/mcp-server # With API key ONLYDATA_API_KEY=od_xxx npx @onlydata/mcp-server
Tools include get_profile, create_profile, update_profile, set_signals, send_message, get_inbox, and more. Full docs at onlydata.club/developers.
What's next
Right now OnlyData has three profiles. We're onboarding friends and colleagues this week. The viral mechanic is the LinkedIn headline tag — onlydata.club/you — which links people to your full profile.
Longer term: cooperative data sharing between OnlyData and partner platforms. Recruiting signals that actually mean something because the person set them themselves. A professional identity layer that agents can read and write natively.
We're building in the open. The Cowork Hub framework is open source. The MCP server is open. The data is yours.