DraftCall

DraftCall MCP Server

NFL fantasy football data for the 2026 season, over the Model Context Protocol.

Endpoint: https://draftcall.io/mcp Transport: streamable HTTP, stateless Auth: none. Free, read-only, no API key, no account. Docs: https://draftcall.io/mcp-server/

Ask an MCP-connected assistant "should I start Bijan Robinson or Jahmyr Gibbs in PPR" and it can answer from live data instead of guessing. Every tool result carries the draftcall.io URL the numbers came from, so answers stay citable.

Connect

Any client that accepts a remote MCP endpoint. No install, no clone.

Claude Code

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

Claude Desktop, or any client that takes a JSON config

{
  "mcpServers": {
    "draftcall": {
      "type": "streamable-http",
      "url": "https://draftcall.io/mcp"
    }
  }
}

Clients that only speak stdio

Some clients and registries cannot take a remote URL and require a command they can run locally. For those, this repository ships a stdio bridge: it forwards newline-delimited JSON-RPC to the same hosted endpoint, so the tools, prompts and resources are identical and there is still only one server implementation.

docker build -t draftcall-mcp .
docker run --rm -i draftcall-mcp

Or without Docker, using any Node 18 or newer:

node stdio-proxy.mjs

The bridge has no dependencies and holds no state. Set DRAFTCALL_MCP_URL to point it somewhere other than production. Prefer the remote URL above wherever your client supports it; the bridge is a compatibility shim, not the main path.

Tools

Ten, all read-only. Nothing here can modify a league, a roster, or an account.

Tool	Arguments	What it answers
compare_players	player_a, player_b, scoring_format	Head to head: points per game in the requested format, volume stats, bye weeks, who produced more. Start/sit, draft and trade questions about two named players.
get_rankings	position, scoring_format, limit	Position rankings for QB, RB, WR, TE, FLEX, K or DEF.
get_player	name	One player's profile: production, tier, efficiency, bye week.
search_players	query, limit	Find players by partial name, team, or position.
get_positional_scarcity	scoring_format	How steep the scoring dropoff is at each position, for draft strategy.
get_bye_conflicts	players	Which bye weeks two or more rostered players share.
get_weekly_matchup	player, week, scoring_format	Who a player faces in a given week of the season, home or away, and how generous that opponent has been to the position. In-season start/sit questions that name a week.
get_strength_of_schedule	team + position, or player, or position alone	How easy or hard a schedule is for one position, over the full season and over fantasy playoff weeks 14 through 17. A position on its own ranks all 32 teams, easiest first.
get_adp_market_gaps	position, direction, scoring_format, limit	Players whose consensus average draft position disagrees most with their actual production ranking. Taken earlier than production means the room is drafting on expectation; later means it is drafting on doubt. A disagreement, not a recommendation.
verify_claim	player, metric, value, scoring_format	Check a stated figure (points per game, games played, bye week, rank, or any season stat) against the data. Confirms it, or returns the real number. Call it before quoting a stat from memory.

Prompts and resources

Three prompts, for clients that surface them in a picker or slash menu: start_sit, draft_pick, and bye_planning. Each one names the exact tools to call and the order to call them.

One resource, draftcall://methodology, a single markdown page describing how every derived figure is computed: season basis, scoring formats, tiers, scarcity, opponent difficulty, and strength of schedule.

scoring_format accepts PPR, half-PPR and standard. position accepts QB, RB, WR, TE, FLEX, K and DEF. week accepts 1 through 18.

Data

Player names and statistics are public-domain factual data. Rankings refresh daily. Every figure is labelled inline with the season it describes (2025 regular-season production until the 2026 season accrues a usable sample), and every response carries a stats_season field, so a model cannot mistake a completed season for a projection. DraftCall publishes no projections, ADP, or injury status through this server.

Not affiliated with the NFL or the NFLPA.

About

Built by Pizza Robot Studios LLC, an independent game and app studio in Los Angeles. DraftCall is also an iOS and Android app: https://draftcall.io/download/

This repository registers the hosted server, documents its tools, and carries the stdio bridge for clients that need one. The server itself runs at the endpoint above.

License

The contents of this repository (the registry manifest and these docs) are MIT licensed. See LICENSE and NOTICE.

That covers this repo only. The DraftCall service, the data it returns, and the DraftCall name are not covered: use of the endpoint is governed by https://draftcall.io/terms/, and DraftCall is a trademark of Pizza Robot Studios LLC (USPTO Serial 99762133).