PlayCaller API

28 live endpoints delivering multi-sport fantasy intelligence. NFL injury signals, MLB player data, NBA/CFB/Soccer scores, fantasy scoring, historical trends, and the validated /v1/feed intelligence layer — all in clean JSON.

Base URL: https://playcallerapp.com
All data endpoints use the /v1/ prefix (e.g. /v1/intelligence/news, /v1/mlb/players). Account endpoints use /daas/ (e.g. /daas/usage). All responses are JSON. All requests use HTTPS.

5-Step Quickstart

From zero to your first successful API call in under 5 minutes.

1

Start your free trial

Go to playcallerapp.com/developer and enter your email to start a 14-day free trial. No credit card required. Disposable email addresses are blocked.

2

Verify your email

Check your inbox for a verification email from [email protected]. Click the link to activate your key. The link expires in 24 hours.

3

Copy your API key from the dashboard

After verifying, you'll be redirected to your developer dashboard at /developer/dashboard where your key is displayed. Trial keys are prefixed pc_hob_. Paid Pro keys use pc_pro_.

4

Store your key securely

Store your API key as an environment variable. Never commit it to source code. Use PC_API_KEY=pc_hob_your_key in your .env file.

5

Make your first call

Fire a test request to confirm authentication. A 200 response means you're live.

bash

curl -H "X-PlayCaller-Key: $PC_API_KEY" \
  https://playcallerapp.com/v1/intelligence/news?limit=1

Authentication

All API requests must include your API key in the X-PlayCaller-Key header. Query-string authentication is not supported.

Header format

http

X-PlayCaller-Key: pc_hob_your_api_key_here

Key prefixes: pc_hob_ for Hobbyist (and trial) keys, pc_pro_ for Pro keys.

Successful authentication

A valid key returns HTTP 200 with your requested data:

json

{
  "status": "success",
  "data": { /* ... response payload ... */ }
}

Failed authentication — 401

A missing or invalid key returns HTTP 401:

json

{
  "status": "error",
  "code": "INVALID_API_KEY",
  "message": "API key is missing or invalid. Include it in the X-PlayCaller-Key header."
}

Security: Never expose your API key in client-side code or public repositories. Rotate compromised keys immediately from Settings → API Keys → Revoke.

GET /v1/intelligence/news

Real-time NFL player signals — injuries, depth chart changes, role shifts, and practice reports. Sourced from beat reporter feeds. Updated every 2 hours. Available on all tiers.

Parameters

Parameter	Type	Required	Description
severity	string	Optional	Filter by severity: `high`, `medium`, `low`. Omit to return all.
team	string	Optional	3-letter team abbreviation (e.g., `PHI`, `KC`, `SF`). Filter to single team.
limit	integer	Optional	Records to return. Default: `25`. Max: `100`.

Example — cURL

bash

curl -X GET \
  -H "X-PlayCaller-Key: pc_hob_your_key" \
  "https://playcallerapp.com/v1/intelligence/news?severity=high&team=SF&limit=5"

Example — Python

python

import requests

api_key = "pc_hob_your_key"
url = "https://playcallerapp.com/v1/intelligence/news"

params = {
    "severity": "high",
    "limit": 5
}
headers = {"X-PlayCaller-Key": api_key}

response = requests.get(url, headers=headers, params=params)
data = response.json()

for signal in data["data"]:
    print(signal["player_name"], signal["severity"], signal["summary"])

200 — Successful Response

json

{
  "success": true,
  "endpoint": "/v1/intelligence/news",
  "count": 2,
  "data": [
    {
      "id": 1247,
      "player_name": "Christian McCaffrey",
      "team": "SF",
      "signal_type": "injury_update",
      "severity": "high",
      "title": "McCaffrey listed doubtful with calf injury",
      "summary": "CMC did not practice Wednesday or Thursday. Elijah Mitchell expected to start.",
      "source": "ESPN Injury Report",
      "source_url": "https://espn.com/...",
      "published_at": "2026-03-28T14:32:00Z"
    }
  ],
  "meta": {
    "tier": "hobbyist",
    "calls_remaining_this_month": 847
  }
}

Response Fields

Field	Type	Description
id	integer	Signal record ID
player_name	string	Full player name
team	string	3-letter team code
signal_type	string	Type of signal (e.g., `injury_update`, `depth_chart`)
severity	string	`high`, `medium`, or `low`
title	string	Short signal headline
summary	string	Full signal text
confidence_score	integer\|null	Calibrated probability score (0-75 display range) from a logistic regression model trained on 20,585 observations across 5 NFL seasons. AUC-ROC 0.697, 4.61x decile lift. Display capped at 75 pending tail calibration validation. `null` when signal pre-dates the model or is non-NFL.
source	string	Source name (e.g., beat reporter, injury report)
source_url	string\|null	Original source URL, if available
published_at	string	ISO 8601 timestamp when signal was scraped

GET /v1/intelligence/injuries

Dedicated injury intelligence feed with severity filtering. Returns active injuries from NFL, MLB, and NBA beat reporter signals. Updated every 2 hours. Available on all tiers.

Example — cURL

bash

curl https://playcallerapp.com/v1/intelligence/injuries?severity=high&team=CIN&limit=5 \
  -H "X-PlayCaller-Key: pc_hob_your_key"

Query Parameters

Parameter	Type	Required	Description
severity	string	Optional	Filter: `high`, `medium`, `low`
team	string	Optional	3-letter team code (e.g., `CIN`, `NYY`)
player	string	Optional	Player name substring match
limit	integer	Optional	Max results (default 50, max 200)

GET /v1/analytics/trends Pro

Historical NFL performance data (2023–2025). Game-by-game stats including fantasy points, snap%, target share, and air yards. Grouped and sorted by player. Requires Pro tier.

Parameters

Parameter	Type	Required	Description
player_name	string	Optional	Partial name match (case-insensitive). E.g., `McCaffrey`, `Hill`.
team	string	Optional	3-letter team abbreviation (e.g., `MIA`, `SF`).
position	string	Optional	`QB`, `RB`, `WR`, `TE`. Filter by position.
season	integer	Optional	NFL season year: `2023`, `2024`, or `2025`.
week	integer	Optional	NFL week number (1–18). Filter to a specific week.
limit	integer	Optional	Max records to return. Default: `50`. Max: `500`.

Example — cURL

bash

curl -X GET \
  -H "X-PlayCaller-Key: pc_pro_your_key" \
  "https://playcallerapp.com/v1/analytics/trends?position=RB&season=2024&limit=10"

Example — Python

python

import requests

api_key = "pc_pro_your_key"
url = "https://playcallerapp.com/v1/analytics/trends"

params = {
    "player_name": "McCaffrey",
    "season": 2024
}
headers = {"X-PlayCaller-Key": api_key}

response = requests.get(url, headers=headers, params=params)
data = response.json()

for trend in data["trends"]:
    print(trend["player_name"], "avg fp:", trend["avg_fantasy_points"])

200 — Successful Response

json

{
  "success": true,
  "endpoint": "/v1/analytics/trends",
  "seasons": [2024],
  "total_records": 12,
  "trends": [
    {
      "player_name": "Christian McCaffrey",
      "team": "SF",
      "position": "RB",
      "games_in_sample": 4,
      "avg_fantasy_points": 28.4,
      "recent_game": {
        "season": 2024,
        "week": 4,
        "opponent": "NE",
        "fantasy_points": 31.2,
        "rushing_yards": 141,
        "rushing_tds": 1,
        "receiving_yards": 71,
        "receptions": 7,
        "snap_pct": 84,
        "target_share": 22,
        "air_yards": 45
      },
      "all_games": [/* ... array of same shape as recent_game ... */]
    }
  ],
  "meta": {
    "tier": "pro",
    "calls_remaining_this_month": 9847
  }
}

Trend Object Fields

Field	Type	Description
player_name	string	Full player name
team	string	3-letter team code
position	string	Player position (QB, RB, WR, TE)
games_in_sample	integer	Number of game records in this player's result set
avg_fantasy_points	number	Average fantasy points across all games in sample
recent_game	object	Most recent game record (season, week, opponent, all stat fields)
all_games	array	All game records for this player in the result set. Each game includes: `season`, `week`, `opponent`, `fantasy_points`, `passing_yards`, `passing_tds`, `rushing_yards`, `rushing_tds`, `receiving_yards`, `receiving_tds`, `receptions`, `snap_pct`, `target_share`, `air_yards`

MLB — Players

Access the full MLB player database — 966 players across all 30 teams, sourced from MLB Stats API and updated daily. Available on all tiers.

GET /v1/mlb/players

List active MLB players. Filterable by position, team, status, or name search.

Parameter	Type	Required	Description
position	string	Optional	Filter by position: `SP`, `RP`, `C`, `1B`, `2B`, `3B`, `SS`, `OF`, `DH`
team	string	Optional	3-letter team abbreviation (e.g., `NYY`, `LAD`)
status	string	Optional	`active`, `injured`, `inactive`
search	string	Optional	Partial name search (case-insensitive)
limit	integer	Optional	Results per page. Default: 50. Max: 200.
offset	integer	Optional	Pagination offset. Default: 0.

bash

curl -H "X-PlayCaller-Key: pc_hob_your_key" \
  "https://playcallerapp.com/v1/mlb/players?team=NYY&position=SP&limit=5"

json

{
  "success": true,
  "total": 18,
  "count": 5,
  "data": [
    {
      "id": "pc_mlb_694973",
      "full_name": "Gerrit Cole",
      "position": "SP",
      "team": "NYY",
      "status": "active"
    }
  ],
  "meta": {
    "sport": "mlb",
    "tier": "hobbyist",
    "calls_remaining_this_month": 996
  }
}

GET /v1/mlb/players/:id

Individual player detail by PlayCaller ID (format: pc_mlb_XXXXXX).

bash

curl -H "X-PlayCaller-Key: pc_hob_your_key" \
  "https://playcallerapp.com/v1/mlb/players/pc_mlb_660670"

GET /v1/mlb/players/:id/stats

Game-by-game stat lines for a player. Includes batting and pitching stats plus fantasy points. Updated daily after games finalize.

Parameter	Type	Required	Description
date	string	Optional	Filter to a specific game date: `YYYY-MM-DD`
limit	integer	Optional	Number of game lines. Default: 30. Max: 200.

bash

curl -H "X-PlayCaller-Key: pc_hob_your_key" \
  "https://playcallerapp.com/v1/mlb/players/pc_mlb_660670/stats?limit=5"

json

{
  "success": true,
  "player": { "full_name": "Juan Soto", "team": "NYY", "position": "OF" },
  "data": [
    {
      "stat_date": "2026-03-20",
      "batting": { "h": 2, "hr": 1, "rbi": 3, "sb": 0, "r": 2, "bb": 1, "ab": 4 },
      "pitching": { "ip": 0, "k": 0, "sv": 0 },
      "fantasy_points": 16.5,
      "is_final": true
    }
  ]
}

MLB — Teams & Rosters

All 30 MLB teams with roster metadata. Available on all tiers.

GET /v1/mlb/teams

Returns all 30 MLB teams with abbreviation, full name, roster size, and position breakdown.

bash

curl -H "X-PlayCaller-Key: pc_hob_your_key" \
  "https://playcallerapp.com/v1/mlb/teams"

json

{
  "success": true,
  "count": 30,
  "data": [
    {
      "abbreviation": "NYY",
      "full_name": "New York Yankees",
      "roster_size": 32,
      "active_players": 29,
      "positions": ["1B","2B","3B","C","OF","RP","SP","SS"]
    }
  ]
}

GET /v1/mlb/teams/:team/roster

Full roster for a specific team. Use 3-letter abbreviation (e.g., NYY, LAD, BOS). Optionally filter by ?position=SP.

bash

curl -H "X-PlayCaller-Key: pc_hob_your_key" \
  "https://playcallerapp.com/v1/mlb/teams/LAD/roster?position=SP"

MLB — Games

Live and scheduled MLB game states polled from MLB Stats API every few minutes during game windows. Includes live scores, inning state, and lineup status. Available on all tiers.

GET /v1/mlb/games

Parameter	Type	Required	Description
date	string	Optional	Filter by game date: `YYYY-MM-DD`. Default: all available.
state	string	Optional	Filter by game state: `live`, `final`, `preview`
limit	integer	Optional	Max results. Default: 30. Max: 100.

bash

curl -H "X-PlayCaller-Key: pc_hob_your_key" \
  "https://playcallerapp.com/v1/mlb/games?date=2026-03-21"

json

{
  "success": true,
  "data": [
    {
      "game_pk": 748234,
      "game_date": "2026-03-21",
      "state": "Final",
      "home_team": { "name": "Seattle Mariners", "score": 6 },
      "away_team": { "name": "Chicago Cubs", "score": 3 },
      "inning": 9,
      "is_final": true,
      "last_polled": "2026-03-21T04:54:52Z"
    }
  ]
}

MLB — Scoring Pro

Fantasy scoring leaders and rotisserie category leaders powered by PlayCaller's baseball scoring engine. Requires Pro tier.

GET /v1/mlb/scoring/leaders

Top fantasy scorers for a given date (default: latest available date). Filterable by position, team, or date.

Parameter	Type	Required	Description
date	string	Optional	Game date: `YYYY-MM-DD`. Default: most recent.
position	string	Optional	Filter by position: `SP`, `OF`, `SS`, etc.
team	string	Optional	3-letter team abbreviation.
limit	integer	Optional	Default: 25. Max: 100.

bash

curl -H "X-PlayCaller-Key: pc_pro_your_key" \
  "https://playcallerapp.com/v1/mlb/scoring/leaders?date=2026-03-20&limit=10"

json

{
  "success": true,
  "data": [
    {
      "rank": 1,
      "player_name": "Cole Young",
      "team": "Seattle Mariners",
      "position": "SS",
      "fantasy_points": 16.5,
      "batting": { "h": 3, "hr": 1, "rbi": 2, "sb": 1 },
      "is_final": true
    }
  ]
}

GET /v1/mlb/scoring/categories

Rotisserie category leaders: top performers in HR, RBI, SB, Runs, Walks, IP, Strikeouts, and Saves. Returns top 10 per category for the latest (or specified) game date.

Parameter	Type	Required	Description
date	string	Optional	Game date: `YYYY-MM-DD`. Default: most recent date with data.

bash

curl -H "X-PlayCaller-Key: pc_pro_your_key" \
  "https://playcallerapp.com/v1/mlb/scoring/categories?date=2026-03-20"

200 — Successful Response

json

{
  "success": true,
  "stat_date": "2026-03-20",
  "home_runs": [
    { "rank": 1, "id": "pc_mlb_660670", "player_name": "Juan Soto", "team": "NYY", "position": "OF", "value": 2, "stat_date": "2026-03-20" }
  ],
  "rbi": [ /* top 10 by RBI */ ],
  "stolen_bases": [ /* top 10 by SB */ ],
  "runs": [ /* top 10 by R */ ],
  "walks": [ /* top 10 by BB */ ],
  "innings_pitched": [ /* top 10 by IP */ ],
  "strikeouts": [ /* top 10 by K */ ],
  "saves": [ /* top 10 by SV */ ]
}

Each category contains an array of up to 10 players. Each entry has: rank, id, player_name, team, position, value (the category stat), and stat_date.

Pro tier required. Calling this endpoint with a Hobbyist key returns HTTP 403 with TIER_INSUFFICIENT.

MLB — Standings

Current MLB standings by division. Returns wins, losses, win percentage, and games back for all 30 teams. Available on all tiers.

Example — cURL

bash

curl https://playcallerapp.com/v1/mlb/standings \
  -H "X-PlayCaller-Key: pc_live_your_key"

NBA Endpoints

4 NBA endpoints covering game scores, league standings, teams, and players. Powered by ESPN data pipelines. Available on all tiers.

GET /v1/nba/games

Returns NBA game scores and states. Filter by date.

bash

curl https://playcallerapp.com/v1/nba/games?date=2026-04-10 \
  -H "X-PlayCaller-Key: pc_live_your_key"

GET /v1/nba/standings

Returns current NBA standings by conference and division.

bash

curl https://playcallerapp.com/v1/nba/standings \
  -H "X-PlayCaller-Key: pc_live_your_key"

GET /v1/nba/teams

Returns all NBA teams. Filter by conference with ?conference=east or ?conference=west.

bash

curl https://playcallerapp.com/v1/nba/teams?conference=east \
  -H "X-PlayCaller-Key: pc_live_your_key"

GET /v1/nba/players

Returns NBA players. Filterable by name search, position, team, with pagination support.

Parameter	Type	Required	Description
search	string	Optional	Partial name match (case-insensitive)
position	string	Optional	Filter by position: `PG`, `SG`, `SF`, `PF`, `C`
team	string	Optional	Team abbreviation (e.g., `LAL`, `BOS`)
limit	integer	Optional	Results per page. Default: 50. Max: 200.
offset	integer	Optional	Pagination offset. Default: 0.

bash

curl "https://playcallerapp.com/v1/nba/players?team=BOS&position=PG" \
  -H "X-PlayCaller-Key: pc_live_your_key"

College Football Endpoints

College football game scores, standings, and rankings. Rankings require Pro tier.

GET /v1/cfb/games

Returns CFB game scores and states. Filter by date.

bash

curl https://playcallerapp.com/v1/cfb/games?date=2026-04-10 \
  -H "X-PlayCaller-Key: pc_live_your_key"

GET /v1/cfb/standings

Returns current CFB conference standings.

bash

curl https://playcallerapp.com/v1/cfb/standings \
  -H "X-PlayCaller-Key: pc_live_your_key"

GET /v1/cfb/rankings Pro

Returns AP Top 25 and CFP rankings. Requires Pro tier.

bash

curl https://playcallerapp.com/v1/cfb/rankings \
  -H "X-PlayCaller-Key: pc_pro_your_key"

Soccer Endpoints

Soccer game scores and league standings across major leagues. Available on all tiers.

GET /v1/soccer/games

Returns soccer match scores and states. Filter by date and league.

bash

curl https://playcallerapp.com/v1/soccer/games?date=2026-04-10 \
  -H "X-PlayCaller-Key: pc_live_your_key"

GET /v1/soccer/standings

Returns current soccer league standings.

bash

curl https://playcallerapp.com/v1/soccer/standings \
  -H "X-PlayCaller-Key: pc_live_your_key"

GET /v1/sports

Returns the list of all sports and endpoints currently available in the API. Useful for dynamically discovering available data sources and their status.

bash

curl https://playcallerapp.com/v1/sports \
  -H "X-PlayCaller-Key: pc_live_your_key"

GET /v1/daas/usage

Returns quota usage, rate limit, and tier information for the authenticated API key. Use this to build quota-aware dashboards or to monitor remaining calls before you hit limits. Available on all tiers. Also accessible at /daas/usage (legacy alias).

Example — cURL

bash

curl -X GET \
  -H "X-PlayCaller-Key: pc_hob_your_key" \
  "https://playcallerapp.com/v1/daas/usage"

200 — Successful Response

json

{
  "success": true,
  "key_prefix": "pc_hob_abc1...",
  "tier": "hobbyist",
  "is_trial": true,
  "trial_starts_at": "2026-03-28T00:00:00Z",
  "trial_ends_at": "2026-04-11T00:00:00Z",
  "trial_days_remaining": 12,
  "calls_this_month": 153,
  "calls_limit_month": 1000,
  "calls_remaining": 847,
  "rate_limit_per_min": 30,
  "reset_at": "2026-04-01T00:00:00Z",
  "upgrade_url": "https://playcallerapp.com/?upgrade=1",
  "endpoint_breakdown": [
    {
      "endpoint": "/v1/intelligence/news",
      "calls": "98",
      "avg_ms": 42,
      "last_call": "2026-03-28T11:52:33Z"
    },
    {
      "endpoint": "/v1/mlb/players",
      "calls": "55",
      "avg_ms": 61,
      "last_call": "2026-03-28T10:14:07Z"
    }
  ]
}

Response Fields

Field	Type	Description
key_prefix	string	First 12 chars of your key + "..." (never the full key)
tier	string	`hobbyist` or `pro`
is_trial	boolean	Whether this is a free trial key
trial_days_remaining	integer\|null	Days left in trial, or `null` for paid keys
calls_this_month	integer	API calls made in the current billing cycle
calls_limit_month	integer	Monthly call quota for your tier
calls_remaining	integer	Calls remaining before hitting `MONTHLY_QUOTA_EXCEEDED`
rate_limit_per_min	integer	Per-minute rate limit
reset_at	string	ISO 8601 timestamp when monthly quota resets
endpoint_breakdown	array	Per-endpoint call counts + avg response time for the last 30 days

Rate Limits

Rate limits are enforced per API key, measured monthly. Limits reset on your billing cycle date.

Plan	Daily Calls	Rate Limit
Trial (14 days, full Pro access)	100 req/day	10 req/min
Hobbyist ($49/mo)	200 req/day (6,000/mo)	30 req/min
Pro ($149/mo)	1,000 req/day (30,000/mo)	60 req/min
Enterprise ($1K–$5K/mo)	Custom	120 req/min
Pro+ ($299/mo) Q3 2026	Unlimited	600 req/min

429 — Per-Minute Rate Limit

Exceeding your per-minute limit returns HTTP 429. The Retry-After header tells you exactly when to retry:

json

{
  "error_code": "RATE_LIMIT_EXCEEDED",
  "message": "Rate limit of 30 req/min exceeded. Retry in 42s or upgrade your plan.",
  "calls_this_minute": 31,
  "limit_per_minute": 30,
  "retry_after_seconds": 42,
  "upgrade_url": "https://playcallerapp.com/?upgrade=1"
}

429 — Monthly Quota Exhausted

Once your monthly call quota is used up, all requests return HTTP 429 until your billing cycle resets:

json

{
  "error_code": "MONTHLY_QUOTA_EXCEEDED",
  "message": "Monthly call quota of 1000 exceeded. Resets on 2026-04-01.",
  "calls_used": 1000,
  "calls_limit": 1000,
  "resets_on": "2026-04-01T00:00:00Z",
  "upgrade_url": "https://playcallerapp.com/?upgrade=1"
}

Upgrade path: Hit your limit? Upgrade your plan at playcallerapp.com. Changes take effect immediately — no waiting for cycle reset.

Error Codes

All errors return a standardized JSON object with error_code, message, and documentation_url.

HTTP Status	Code	Meaning
400	INVALID_PARAMETER	A query parameter value is malformed or out of range.
401	MISSING_API_KEY	`X-PlayCaller-Key` header is absent.
401	INVALID_API_KEY	Key not found, revoked, or not yet verified.
402	TRIAL_EXPIRED	14-day free trial has ended. Upgrade to Hobbyist or Pro to continue.
403	TIER_INSUFFICIENT	Endpoint requires a higher plan tier. Response includes `required_tier` and `upgrade_url`.
429	RATE_LIMIT_EXCEEDED	Per-minute request limit exceeded. Retry after `retry_after_seconds`.
429	MONTHLY_QUOTA_EXCEEDED	Monthly call quota exhausted. Resets on billing cycle date.
500	INTERNAL_ERROR	Server error. Retry with exponential backoff.

402 — Trial Expired

json

{
  "error_code": "TRIAL_EXPIRED",
  "message": "Your 14-day free trial has expired. Upgrade to Hobbyist or Pro to continue.",
  "trial_ended_at": "2026-04-11T00:00:00Z",
  "upgrade_url": "https://playcallerapp.com/?upgrade=1"
}

403 — Tier Insufficient

json

{
  "error_code": "TIER_INSUFFICIENT",
  "message": "This endpoint requires pro tier or higher. Your current tier: hobbyist.",
  "current_tier": "hobbyist",
  "required_tier": "pro",
  "upgrade_url": "https://playcallerapp.com/?upgrade=1"
}

GET /v1/feed Pro

Pre-composed player intelligence dossier. Returns a complete intelligence object for a player in a single API call: calibrated confidence score, validated heat signal, full signal breakdown, and a plain-English synthesis sentence. No rate cap on Pro tier. Requires Pro tier.

Query Parameters

Parameter	Type	Required	Description
player	string	Required	Player name or playcaller_id
team	string	Optional	3-letter team code to disambiguate common names

Response Fields

Field	Type	Description
player_name	string	Canonical player name
team	string	Current team abbreviation
position	string	Position code
confidence_score	integer\|null	Calibrated probability score (0-75 display range) from a logistic regression model trained on 20,585 observations across 5 NFL seasons. AUC-ROC 0.697, 4.61x decile lift. Display capped at 75 pending tail calibration validation.
heat_signal	string\|null	Validated directional heat: `Cold`, `Warming`, `Hot`, or `Surging`. Quartile lift 6.0pp, W+2 persistence 5.9pp.
synthesis	string\|null	Plain-English summary generated from signal data, validated against source before delivery
signals	array	Individual signals that drove the score, with source and weight
_audit	object	Model provenance block: `model_version`, `observations_used`, `generated_at`, `signals_validated`. Present on all /v1/feed responses.

MCP Server

PlayCaller implements Anthropic's Model Context Protocol over HTTP. Connect Cursor, Claude Desktop, Perplexity, or any MCP-compatible AI to live sports intelligence with a single endpoint.

5 Tools

Tool	Description
get_injury_signals	Active beat reporter signals, filterable by sport and severity
get_player_identity	Resolve a player across ESPN, Sleeper, Yahoo, NFL.com. 13,606 identities normalized
get_anomaly_scores	Players deviating from 3-season usage baseline, score 0-100
get_player_projections	AI fantasy point projections generated from signal data. Note: methodology under review. The backing model is currently being audited for validation. Use with appropriate caution.
get_prediction_markets	Active Kalshi prop markets with AI confidence scores

Quick Connect

Add to .cursor/mcp.json or Claude Desktop config:

json

{ "mcpServers": { "playcaller": { "url": "https://playcallerapp.com/mcp", "headers": { "X-PlayCaller-Key": "YOUR_KEY" } } } }

Full tool schemas at GET /mcp (unauthenticated discovery). Auth: X-PlayCaller-Key header on POST.

Roadmap — Q3 2026

Two new endpoints ship with the Pro+ tier in Q3 2026. Join the waitlist to lock in Pro pricing.

GET /v1/predictions/confidence

The Confidence Moat™ — ML-weighted probability scores for player outcomes before prediction markets reprice. Identifies situations where on-field intelligence shows a 3%+ edge over current market-implied probabilities. Pairs directly with the /v1/intelligence/news feed.

Pro+ — Q3 2026

GET /v1/identity/map

Cross-platform player identity resolution — maps a player across Sleeper, ESPN, Yahoo, DraftKings, FanDuel, and Kalshi using a unified PlayCaller player ID. Stop maintaining your own lookup tables.

Pro+ — Q3 2026