DraftCall

What DraftCall MCP server does

DraftCall MCP server exposes NFL fantasy football data to AI assistants through the Model Context Protocol. Its read-only tools cover player research, draft preparation, roster planning, and in-season decisions. The hosted service is available at https://draftcall.io/mcp and uses stateless streamable HTTP, so a compatible client can connect without installing the repository.

The data supports PPR, half-PPR, and standard scoring. Supported positions are QB, RB, WR, TE, FLEX, K, and DEF. Rankings refresh daily, and responses identify the season represented by each statistic through inline labels and a stats_season field.

Tools and capabilities

DraftCall MCP server includes ten tools:

• Compare two named players using scoring-format-specific points per game, volume, bye weeks, and production results.
• Retrieve rankings for a position and inspect an individual player’s production, tier, efficiency, and bye week.
• Search for players using partial names, teams, or positions.
• Measure positional scoring drop-off to inform draft strategy.
• Find shared bye weeks across two or more players.
• Check a player’s opponent for a selected week, including home or away status and opponent generosity to the position.
• Evaluate positional strength of schedule for the full season or fantasy playoff weeks 14–17.
• Identify the largest differences between consensus ADP and actual production ranking, without presenting those differences as recommendations.
• Verify a stated figure such as points per game, games played, bye week, rank, or another season statistic.

The server also publishes three prompts—start_sit, draft_pick, and bye_planning—and a draftcall://methodology resource explaining how derived figures are calculated.

How it works

A client sends MCP tool requests to the hosted endpoint and receives structured, read-only results. Tool responses include the DraftCall website URL used for the figures, which gives an assistant a source to cite. The week argument accepts values from 1 through 18, while scoring and position arguments use the supported formats and positions described above.

DraftCall MCP server does not change leagues, rosters, or accounts. It provides factual data and derived analysis rather than projections. The service does not publish projections, ADP, or injury status through this server; its ADP-gap tool compares consensus draft position with production ranking, and its output is explicitly a disagreement rather than a player recommendation.

Setup and configuration

Use the remote endpoint whenever the MCP client accepts streamable HTTP. Claude Code can register it with:

claude mcp add --transport http draftcall https://draftcall.io/mcp

Clients that use a JSON MCP configuration can define the server with the same URL and streamable-http type. No API key, account, authentication, repository clone, or local installation is required for the hosted path.

For clients that only accept stdio, the repository includes a compatibility bridge. Build and run it with Docker, or execute node stdio-proxy.mjs using Node.js 18 or newer. The bridge forwards newline-delimited JSON-RPC requests to the hosted service, has no dependencies, and keeps no state. DRAFTCALL_MCP_URL can redirect the bridge to another endpoint instead of production.

Limitations and notes

DraftCall MCP server is focused on NFL fantasy football data and does not manage fantasy leagues or user accounts. The service is not affiliated with the NFL or NFLPA. Current-season analysis should be interpreted using the returned season labels, especially while the 2026 season is accumulating a usable sample; earlier production may be used until then. The repository and its documentation are MIT licensed, but the hosted service, returned data, and DraftCall name have separate terms and ownership.