Integration guide, checked 5 November 2026

Use with Claude

Short answerRun one claude mcp add command with your key in a header, or add https://fanduelapi.com/api/mcp as a custom connector in Claude to search the docs and read a delayed sample without a key.

Get a free API key Agent guide

FanDuel API is an independent data service operated by FF API Inc. It is not affiliated with, endorsed by or sponsored by FanDuel.

Set it up

Get a key
Create a free key at https://fanduelapi.com/dashboard/keys, or let the agent start the signup for you through https://fanduelapi.com/connect. Store it as FANDUEL_API_KEY; it is shown once.

Claude Code

Add the server for your user. The header reads the key from your shell, so it never lands in a project file.

Terminal

claude mcp add --transport http --scope user fanduelapi https://fanduelapi.com/api/mcp \
  --header "Authorization: Bearer $FANDUEL_API_KEY"

Claude on the web or desktop
Settings, Connectors, Add custom connector, then paste https://fanduelapi.com/api/mcp. Custom connectors cannot hold a static key, so this gives the keyless tools: search_docs, fetch_doc and get_sample_props on Free-delayed data.

Claude Desktop with your key

To use the data tools from Claude Desktop, bridge the server through mcp-remote in claude_desktop_config.json.

claude_desktop_config.json

{
  "mcpServers": {
    "fanduelapi": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://fanduelapi.com/api/mcp",
        "--header",
        "Authorization:${AUTH_HEADER}"
      ],
      "env": {
        "AUTH_HEADER": "Bearer <your key>"
      }
    }
  }
}

Check the key with one REST call

If a client cannot reach MCP, the same data is plain REST.

Terminal

export FANDUEL_API_KEY=<your key>
curl "https://fanduelapi.com/api/v1/props?sport=nba&stat=points&limit=3" \
  -H "Authorization: Bearer $FANDUEL_API_KEY"

A first prompt

Bounded and specific, so the first answer shows whether the data fits.

Prompt

Use the FanDuel API MCP server. List tonight's NBA points props from FanDuel for one game, show each line with the over and under prices, and flag any prop whose line moved since it opened. Quote meta.as_of.

If something is off

The tools list is empty or the server will not connect

The server speaks streamable HTTP as stateless JSON over POST at https://fanduelapi.com/api/mcp. A client that only speaks SSE or stdio needs a bridge such as mcp-remote.

A tool says it needs an API key

Data tools need the Authorization header. search_docs, fetch_doc, get_sample_props and send_feedback work without one.

A 429 or quota error

Relay error.user_message to the person as is. Wait until error.reset_at for a rate limit; a monthly quota needs the month to reset or a plan change, which only the person can approve.

Other clients

The same server works anywhere MCP does. Everything an agent needs is in the agent guide and the llms.txt file.