Definitions · Frozen source

Free data provider definitions

62 data points · 12 fields

This view as JSON Download this page CSV ↓

This-page CSV uses field path, type and value columns, including source context. Full dataset downloads are above.

6 matches · 1–6 shown. Each record keeps all its stats together. Filters are saved in this page’s address.

Sleeper

kind: fantasy_platform
access: public_no_key
product Use: League state, scoring, rosters, drafts, transactions, and player identity.
cache Seconds: 3600

Full record · 10 fields

id: sleeper
label: Sleeper
kind: fantasy_platform
access: public_no_key
product Use: League state, scoring, rosters, drafts, transactions, and player identity.
cache Seconds: 3600
docs Url: https://docs.sleeper.com/
attribution: League and roster data from Sleeper. DraftADynasty is not affiliated with Sleeper.
rights Posture: Public read-only API; stay below the published general rate guideline, do not imply affiliation, and confirm commercial display rights before widening beyond the existing integration.
exposure: user_facing_normalized

nflverse

kind: open_football_data
access: public_no_key
product Use: Historical schedules, rosters, injuries, depth charts, player stats, and reproducible model features.
cache Seconds: 21600

Full record · 10 fields

id: nflverse
label: nflverse
kind: open_football_data
access: public_no_key
product Use: Historical schedules, rosters, injuries, depth charts, player stats, and reproducible model features.
cache Seconds: 21600
docs Url: https://nflreadr.nflverse.com/articles/nflverse_data_schedule.html
attribution: nflverse; preserve dataset-specific attribution such as FTN Data via nflverse where applicable.
rights Posture: Repository licenses do not resolve every underlying NFL or third-party data right; public output stays aggregated and source-labeled.
exposure: derived_features_only

National Weather Service

kind: weather
access: public_no_key
product Use: Venue forecasts for wind, precipitation, temperature, and outdoor-game context.
cache Seconds: 900

Full record · 10 fields

id: nws
label: National Weather Service
kind: weather
access: public_no_key
product Use: Venue forecasts for wind, precipitation, temperature, and outdoor-game context.
cache Seconds: 900
docs Url: https://www.weather.gov/documentation/services-web-api
attribution: Weather forecast from the US National Weather Service.
rights Posture: US government open data, free to use for any purpose; identify the application with a User-Agent and respect reasonable rate limits.
exposure: user_facing_normalized

Kalshi

kind: prediction_market
access: authorization_required
product Use: Potential US prediction-market context after written data-use authorization.
cache Seconds: 300

Full record · 10 fields

id: kalshi
label: Kalshi
kind: prediction_market
access: authorization_required
product Use: Potential US prediction-market context after written data-use authorization.
cache Seconds: 300
docs Url: https://docs.kalshi.com/getting_started/quick_start_market_data
attribution: Market data from Kalshi; informational display only.
rights Posture: Public reachability is not a product license. Current data and developer terms require written authorization for caching, aggregation, public display, or product use.
exposure: disabled_pending_written_authorization

Polymarket

kind: prediction_market
access: public_no_key
product Use: Timestamped NFL probability, movement, activity, and liquidity context in research and shadow evaluation.
cache Seconds: 300

Full record · 10 fields

id: polymarket
label: Polymarket
kind: prediction_market
access: public_no_key
product Use: Timestamped NFL probability, movement, activity, and liquidity context in research and shadow evaluation.
cache Seconds: 300
docs Url: https://docs.polymarket.com/market-data/overview
attribution: Market context from Polymarket public market-data APIs; DraftADynasty is not affiliated with Polymarket.
rights Posture: Official documentation describes public no-auth market data and globally available data access even where trading is restricted. The current free noncommercial product uses read-only endpoints and normalized research context only; re-review before commercial or trading use.
exposure: user_facing_normalized_and_shadow_only

The Odds API

kind: sportsbook_aggregator
access: free_key_optional
product Use: Current NFL moneyline, spread, total, and Super Bowl outright consensus from named books.
cache Seconds: 43200

Full record · 10 fields

id: the_odds_api
label: The Odds API
kind: sportsbook_aggregator
access: free_key_optional
product Use: Current NFL moneyline, spread, total, and Super Bowl outright consensus from named books.
cache Seconds: 43200
docs Url: https://the-odds-api.com/liveapi/guides/v4/
attribution: Sportsbook prices via The Odds API; source book and timestamp remain attached.
rights Posture: A server-only key is not display permission. Require explicit commercial display approval in addition to the key and quota gate; never expose or redistribute the raw feed.
exposure: disabled_pending_key_quota_and_rights_approval

Dataset details

Source date: 2026-09-04 · time unavailable

Documented sources, attribution and supported use. Check the live source-health endpoint for current connectivity.

Original capture date; opening or downloading does not refresh the source. Per-record timestamps take precedence. Definitions may describe unavailable inputs.

How to read and verify this data

JSON bracket paths; [] means every array element. CSV uses concrete zero-based indices. Types are observed, not a promise that future fields cannot change. null is unavailable; empty array/object means an empty collection. Zero is preserved as a measured or supplied numeric value. Source-native units and scoring. Consult metric-definitions for formulas; ambiguous units remain unspecified, never inferred.

sha256 of UTF-8 JSON.stringify(data), excluding this envelope. Source receipt hashes remain inside data. CSV prefixes formula-looking text with an apostrophe; numeric signs are preserved. JSON keeps original strings.

a6b6baa59d1a9df52849b5e2f290f84c7985c1665f9221f883e2b214e264d74c

Published observations, approved source-labeled aggregates, research and definitions are provided within each dataset's stated scope. Read each record's source, period, scoring and availability. Research visibility does not promote a model into public rankings. Missing means unavailable, never zero. No account records or provider write access.

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Free data provider definitions

62 data points · 12 fields

This view as JSON Download this page CSV ↓

This-page CSV uses field path, type and value columns, including source context. Full dataset downloads are above.

6 matches · 1–6 shown. Each record keeps all its stats together. Filters are saved in this page’s address.

Sleeper

kind: fantasy_platform
access: public_no_key
product Use: League state, scoring, rosters, drafts, transactions, and player identity.
cache Seconds: 3600

Full record · 10 fields

id: sleeper
label: Sleeper
kind: fantasy_platform
access: public_no_key
product Use: League state, scoring, rosters, drafts, transactions, and player identity.
cache Seconds: 3600
docs Url: https://docs.sleeper.com/
attribution: League and roster data from Sleeper. DraftADynasty is not affiliated with Sleeper.
rights Posture: Public read-only API; stay below the published general rate guideline, do not imply affiliation, and confirm commercial display rights before widening beyond the existing integration.
exposure: user_facing_normalized

nflverse

kind: open_football_data
access: public_no_key
product Use: Historical schedules, rosters, injuries, depth charts, player stats, and reproducible model features.
cache Seconds: 21600

Full record · 10 fields

id: nflverse
label: nflverse
kind: open_football_data
access: public_no_key
product Use: Historical schedules, rosters, injuries, depth charts, player stats, and reproducible model features.
cache Seconds: 21600
docs Url: https://nflreadr.nflverse.com/articles/nflverse_data_schedule.html
attribution: nflverse; preserve dataset-specific attribution such as FTN Data via nflverse where applicable.
rights Posture: Repository licenses do not resolve every underlying NFL or third-party data right; public output stays aggregated and source-labeled.
exposure: derived_features_only

National Weather Service

kind: weather
access: public_no_key
product Use: Venue forecasts for wind, precipitation, temperature, and outdoor-game context.
cache Seconds: 900

Full record · 10 fields

id: nws
label: National Weather Service
kind: weather
access: public_no_key
product Use: Venue forecasts for wind, precipitation, temperature, and outdoor-game context.
cache Seconds: 900
docs Url: https://www.weather.gov/documentation/services-web-api
attribution: Weather forecast from the US National Weather Service.
rights Posture: US government open data, free to use for any purpose; identify the application with a User-Agent and respect reasonable rate limits.
exposure: user_facing_normalized

Kalshi

kind: prediction_market
access: authorization_required
product Use: Potential US prediction-market context after written data-use authorization.
cache Seconds: 300

Full record · 10 fields

id: kalshi
label: Kalshi
kind: prediction_market
access: authorization_required
product Use: Potential US prediction-market context after written data-use authorization.
cache Seconds: 300
docs Url: https://docs.kalshi.com/getting_started/quick_start_market_data
attribution: Market data from Kalshi; informational display only.
rights Posture: Public reachability is not a product license. Current data and developer terms require written authorization for caching, aggregation, public display, or product use.
exposure: disabled_pending_written_authorization

Polymarket

kind: prediction_market
access: public_no_key
product Use: Timestamped NFL probability, movement, activity, and liquidity context in research and shadow evaluation.
cache Seconds: 300

Full record · 10 fields

id: polymarket
label: Polymarket
kind: prediction_market
access: public_no_key
product Use: Timestamped NFL probability, movement, activity, and liquidity context in research and shadow evaluation.
cache Seconds: 300
docs Url: https://docs.polymarket.com/market-data/overview
attribution: Market context from Polymarket public market-data APIs; DraftADynasty is not affiliated with Polymarket.
rights Posture: Official documentation describes public no-auth market data and globally available data access even where trading is restricted. The current free noncommercial product uses read-only endpoints and normalized research context only; re-review before commercial or trading use.
exposure: user_facing_normalized_and_shadow_only

The Odds API

kind: sportsbook_aggregator
access: free_key_optional
product Use: Current NFL moneyline, spread, total, and Super Bowl outright consensus from named books.
cache Seconds: 43200

Full record · 10 fields

id: the_odds_api
label: The Odds API
kind: sportsbook_aggregator
access: free_key_optional
product Use: Current NFL moneyline, spread, total, and Super Bowl outright consensus from named books.
cache Seconds: 43200
docs Url: https://the-odds-api.com/liveapi/guides/v4/
attribution: Sportsbook prices via The Odds API; source book and timestamp remain attached.
rights Posture: A server-only key is not display permission. Require explicit commercial display approval in addition to the key and quota gate; never expose or redistribute the raw feed.
exposure: disabled_pending_key_quota_and_rights_approval

Dataset details

Source date: 2026-09-04 · time unavailable

Documented sources, attribution and supported use. Check the live source-health endpoint for current connectivity.

Original capture date; opening or downloading does not refresh the source. Per-record timestamps take precedence. Definitions may describe unavailable inputs.

How to read and verify this data

a6b6baa59d1a9df52849b5e2f290f84c7985c1665f9221f883e2b214e264d74c