MCP Access for STACKED subscribers

Fantasy football AI that knows your league.

STACKED MCP turns Codex, Claude, and ChatGPT into a fantasy football AI tool that can analyze rosters, recommend trades and waivers, optimize lineups, evaluate offers, and pull live market data before it answers.

Assistant
Ask a lineup call
MCP
STACKED
Fetch league context
Connect STACKEDSee setup

Included for STACKED subscribers. Read-only OAuth access.

How it works

Ask a question. Get an answer grounded in your league.

01

Connect once

Add the hosted STACKED endpoint to Codex, Claude, or ChatGPT and authorize with OAuth. The session is scoped to your subscription.

02

Your assistant pulls real context

When you ask a question, it calls read-only MCP tools for your roster, scoring, standings, matchups, waivers, and market values.

03

Answers grounded in your league

Advice starts from the league state you are actually playing — your format, your players, your market — not generic takes.

Why MCP matters

AI for fantasy football gets better when it can read the league.

Give your assistant current STACKED context and purpose-built fantasy tools, so every answer starts closer to the decision.

Authoritative league context

Pull roster, matchup, scoring, standings, transactions, free agents, and full league bundles before every answer.

get_league_contextget_rosterget_standings

Decision tools, not just data

Ask for roster grades, trade partners, waiver targets, lineup optimization, and specific trade evaluations from real league context.

analyze_rosterrecommend_tradesoptimize_lineup

Market signals included

Use STACKED fantasy intelligence, latest FantasyCalc trade values, FantasyPros ECR, and platform ADPs without leaving your AI client.

get_fantasy_intelligenceget_latest_trade_valuesget_latest_ecr_and_adp
LLM tool access

Twenty tools for AI fantasy football decisions.

Connect once. After OAuth, your assistant can call read-only tools for league context, roster analysis, trade partners, waivers, lineup optimization, trade evaluation, player search, trade values, ECR, and ADP.

Streamable HTTP transport
https://www.stackedfantasy.com/api/mcp

Tools are scoped to the subscriber who authorizes the connection.

Tool 1 / 20

  1. MCP tool

    get_usage_guide

    Tool guide

    Explains every STACKED MCP tool, when to use it, accepted arguments, and expected response shapes.

    Returns

    workflow guidance, argument notes, response shapes

  2. MCP tool

    list_leagues

    Connected leagues

    Lists the subscriber's connected fantasy football leagues with filters for season, platform, name, active status, and result count.

    Returns

    leagueKey, platform, season, team, league records

  3. MCP tool

    get_league

    League metadata

    Fetches one league after the model has a leagueKey from list_leagues, including platform, season, team id, league URL, and size.

    Returns

    one FantasyLeague record

  4. MCP tool

    get_roster

    Roster context

    Returns the authenticated user's roster by default, including lineup slots, bench, reserve spots, positions, teams, injuries, and bye weeks.

    Returns

    players, slots, positions, teams, statuses

  5. MCP tool

    get_league_context

    Full league bundle

    Pulls the broad context needed for open-ended questions: league metadata, settings, roster, standings, transactions, matchups, free agents, and STACKED intelligence.

    Returns

    league, settings, roster, standings, market context

  6. MCP tool

    analyze_roster

    Roster analysis

    Rates the user's roster using lineup settings, standings context, roster construction, injuries, bye weeks, and player-value signals.

    Returns

    strengths, weaknesses, needs, surplus, drops

  7. MCP tool

    find_trade_partners

    Trade partners

    Finds actual league managers whose roster needs and surplus match the authenticated user's team.

    Returns

    ranked partners, needs, surplus, offer frameworks

  8. MCP tool

    recommend_trades

    Trade ideas

    Generates trade directions, targets, partner fits, and heuristic offer frameworks from real league rosters and roster needs.

    Returns

    roster diagnosis, partners, trade frameworks

  9. MCP tool

    recommend_waivers

    Waiver recommendations

    Recommends waiver adds, position-specific free agents, drop candidates, and add/drop claim ideas from connected league context.

    Returns

    best adds, adds by position, drops, claim ideas

  10. MCP tool

    optimize_lineup

    Lineup optimization

    Builds a best-effort lineup from the user's actual roster, league slots, injury statuses, and projection/ranking signals without submitting changes.

    Returns

    starters, bench, lineup changes, warnings

  11. MCP tool

    evaluate_trade

    Trade evaluation

    Evaluates a proposed trade for the authenticated user's team, checking player values and whether the deal fills roster needs or spends surplus.

    Returns

    send/receive matches, value delta, fit, recommendation

  12. MCP tool

    get_fantasy_intelligence

    Fantasy intelligence

    Fetches STACKED projection, rank, ADP, ECR, bye-week, and injury context for NFL players.

    Returns

    player values, projections, ranks, ADP, injuries

  13. MCP tool

    get_roster_settings

    Roster settings

    Reads lineup slots and roster construction rules for the selected league, including starters, bench, flex, superflex, kicker, and defense slots.

    Returns

    QB, RB, WR, TE, FLEX, K, DST, BN slots

  14. MCP tool

    get_scoring_settings

    Scoring settings

    Gets league scoring rules such as PPR, passing touchdown value, yardage rates, bonuses, kicker scoring, and defense scoring.

    Returns

    platform scoring keys and point values

  15. MCP tool

    get_standings

    League standings

    Reads standings so advice can account for rank, record, points for, points against, playoff odds, and contender status.

    Returns

    team names, roster ids, wins, losses, PF, PA, rank

  16. MCP tool

    get_matchups

    Weekly matchups

    Reads weekly matchup data for a league, optionally focused on one fantasy team or roster id.

    Returns

    week, opponent, starters, scores, matchup rows

  17. MCP tool

    get_transactions

    Transactions

    Gets league adds, drops, trades, waiver claims, and roster moves so the model can reason with recent market activity.

    Returns

    transaction type, players, teams, timestamps

  18. MCP tool

    search_players

    Player and free-agent search

    Searches players in a connected league by name, position, and free-agent availability.

    Returns

    matching players, positions, availability

  19. MCP tool

    get_latest_trade_values

    Latest trade values

    Queries the latest STACKED FantasyCalc trade values by player, position, and format, defaulting to 12-team 1QB half-PPR redraft.

    Returns

    latest date, format, ranks, tiers, trade values

  20. MCP tool

    get_latest_ecr_and_adp

    ECR and ADP

    Compares FantasyPros ECR with the latest Sleeper, Yahoo, ESPN, and Underdog ADPs from STACKED's daily NFL market sync.

    Returns

    latest source dates, ECR, ADPs, player ranks

Setup walkthroughs

Add STACKED once. Ask anywhere.

Use the same hosted endpoint and OAuth flow across supported AI clients. The setup changes by client; the access model does not.

Client setup guides
Codex, Claude.ai, and ChatGPT each show the setup path users follow in the real client.
Settings
MCP servers
Add server
Name it STACKED
Streamable HTTP
Paste URL
Authorize
Ask
Codex
Settings -> MCP servers
MCP
Current step
Settings

Open settings in the Codex desktop app.

STACKED connector
OAuth · read-only fantasy context
Ready
https://www.stackedfantasy.com/api/mcp
Leagues
Rosters
Scoring
Matchups
Who should I start at FLEX this week in my Sleeper league?
I'll use your league, roster, scoring, and matchup context before answering.
Codex · Desktop app
Open settings in the Codex desktop app.
Streamable HTTP URL
https://www.stackedfantasy.com/api/mcp
Step 1

Open MCP settings in your AI client.

Step 2

Add the STACKED hosted endpoint.

Step 3

Authorize with STACKED OAuth.

Step 4

Ask with live league context.

What you can ask

Built for draft, trade, waiver, and lineup decisions.

Ask in plain English. STACKED MCP supplies the league state your AI fantasy football assistant needs to reason with you.

“Rate my roster and show my weakest position.”

Calls analyze_roster

“Find actual trade partners in this league.”

Calls find_trade_partners

“Recommend waiver adds and who I should drop.”

Calls recommend_waivers

“Optimize my lineup for this week's matchup.”

Calls optimize_lineup

“Evaluate this offer against my roster needs.”

Calls evaluate_trade

“Compare this player with latest ECR and ADP.”

Calls get_latest_ecr_and_adp

Fantasy football AI

A league-aware AI fantasy football draft assistant and weekly decision layer.

Generic AI can explain football. STACKED MCP helps AI for fantasy football understand your league, your roster, and the market around every decision.

What makes STACKED a fantasy football AI tool?

STACKED MCP connects your AI assistant to live league data, roster construction, scoring rules, standings, waiver availability, trade values, ECR, and ADP so fantasy football AI advice can be grounded in your actual team.

Can it work as an AI fantasy football draft assistant?

Yes. STACKED gives AI clients roster, scoring, ADP, ECR, and player-value context so an AI fantasy football draft assistant can reason about format, roster needs, rankings, and market prices instead of giving generic player takes.

What should the best AI for fantasy football know?

The best AI for fantasy football should know your league settings, roster, opponents, waiver pool, market values, and current player signals. STACKED MCP exposes that context through read-only tools for Codex, Claude, ChatGPT, and other MCP clients.

Access model

Useful context without account control.

Sessions are authenticated, subscriber-scoped, and read-only. The assistant can retrieve fantasy context and generate recommendations, but it never gets shared credentials or account-control permissions.

Guardrails
  • Never submits lineups, waivers, or trades
  • Never changes league or account settings
  • Never sees shared credentials
  • Always scoped to the subscriber who authorized

What your assistant can read

Read-only
  • Connected leagues
  • Roster analysis
  • Full league context
  • Trade partner discovery
  • Trade recommendations
  • Waiver recommendations
  • Lineup optimization
  • Specific trade evaluation
  • Fantasy intelligence
  • Scoring settings
  • Standings and matchups
  • Transactions
  • Player search
  • Latest trade values
  • FantasyPros ECR and ADP

Ready to connect STACKED MCP?

Sign up, authorize once, and let your assistant work from the league state you are actually playing.

Get STACKED

Included with a STACKED subscription · OAuth · Read-only