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Connect dfsOS to your AI assistant

dfsOS is an MCP server your assistant can call for DraftKings-only contest history, athlete news and DFS lessons: free questions need no account, and linking your dfsOS account adds what your plan includes on the site.

Server URLhttps://mcp.dfsos.com/mcp

Free questions to try

No dfsOS account needed for any of these.

  • Who has won the most DraftKings Milly Maker contests since 2020?
  • What's the latest on Joel Embiid's injury?
  • Who won last Sunday's DraftKings NFL Millionaire Maker?
  • Which fighters scored the most DraftKings points at last weekend's UFC card?
  • Explain why a good DFS decision can still lose.
Install guide

Install dfsOS in your host

Claude

claude.ai web · Claude Desktop · Claude mobile

  1. 1Open Settings, then Connectors.
  2. 2Choose Add custom connector.
  3. 3Name it dfsOS and paste the server URL https://mcp.dfsos.com/mcp.
  4. 4Click Add. Free questions work immediately; Claude asks you to sign in to dfsOS the first time you ask a Pro or All-Access question.
Add to Claude
  • The directory listing link replaces this custom-connector step once the dfsOS connector is approved.

What linking adds

Free (no account needed)

  • DFS lessons
  • Athlete news and injuries
  • Completed DraftKings contest results and winners
  • MMA event scores
  • Actual contest ownership
  • Venue weather
  • Multi-year contest leaderboards
  • Data coverage by sport
  • NBA game logs

Pro (linked account)

  • Slate overview
  • Player projections and comparisons
  • Player availability
  • Team context
  • NFL slate news events
  • Roster construction by cohort

All-Access (linked account)

  • Public DraftKings player profiles and comparisons
  • A player's roster construction profile

Link your existing dfsOS account. See what each dfsOS plan includes

Data and privacy

When you ask a question, your AI assistant sends mcp.dfsos.com only the arguments the tool needs: a sport, dates, a contest or athlete name, and, for linked accounts, your dfsOS sign-in token. dfsOS does not receive your chat history.

Every answer honours dfsOS public-profile opt-outs, data removal requests and winnings visibility settings. Usernames that opted out are masked and counted, never shown.

dfsOS reports what has happened in DraftKings contests. It never recommends a lineup.

More questions? Read the dfsOS FAQ