The #1 Fantasy Football API
PPR projections, multi-season actuals, deviation analytics, and matchup history for every fantasy-relevant player — through one fast, predictable REST API. Ship your fantasy app, draft tool, or model in an afternoon.
One API key • $5/month • 5,000 requests included • No credit card to read the docs
Why GridIron Data is #1
The most complete dataset
Projections, real actuals, week-by-week stats, deviation analytics, injuries, and head-to-head matchup history — all under one schema. Not just numbers, but context.
Projections you can trust
PPR-accurate season and weekly projections, refreshed daily in-season and benchmarked against actuals so you can see who beats their number — and who fades.
Built for developers
Clean REST, predictable JSON, one x-api-key header. Search by name, position, team, or ID. You're making your first call in under five minutes.
Production-grade
Serverless on AWS with a global CDN, tiered rate limits, and 99.9% uptime. Scale from a weekend project to a paid product without changing a line.
Everything You Need
Projections & Actuals
Season-long and weekly PPR projections for every position, plus real game-by-game results from 2020 through 2025.
Deviation Analytics
Track how players perform vs. their projection every week. Surface the consistent over- and under-performers before your league does.
Daily-Fresh Data
Stats, projections, injuries, and roster changes updated daily during the season — your app is never a week behind.
Matchup History
See how any player performs against any opponent, with historical head-to-head splits baked into every profile.
Flexible Search
Query by player name, position, team, or ID with partial matching and filters. Find exactly the player you need.
Fast & Reliable
Built on AWS with a global CDN and 99.9% uptime for low-latency responses anywhere in the world.
Simple to Use
Get Player Data
curl -H "x-api-key: YOUR_KEY" \
"https://api.gridirondata.com/api/v1/players?name=Josh%20Allen&position=QB"Weekly Projections
curl -H "x-api-key: YOUR_KEY" \
"https://api.gridirondata.com/api/v1/projections/12?position=RB"Matchup Analysis
curl -H "x-api-key: YOUR_KEY" \
"https://api.gridirondata.com/api/v1/matchups/Josh%20Allen%23QB/KC"See It Live
Real calls to the real API — no signup needed. Change the player and run it yourself.
Tip: type any NFL player, pick their position, and hit Run live.
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Simple Pricing
Pro
- 50,000 requests/month
- All endpoints
- Priority email support
- Rate limit: 100 req/min
- Custom webhooks
Enterprise
- Unlimited requests
- All endpoints
- Priority support
- Custom rate limits
- SLA guarantee
- Dedicated account manager
Frequently Asked Questions
What is GridIron Data?
GridIron Data is a REST API for fantasy football data. It returns PPR projections (season and weekly), real game-by-game actuals from 2020 through 2025, deviation analytics, injury status, and head-to-head matchup history for every fantasy-relevant NFL player as predictable JSON.
How much does the GridIron Data API cost?
Plans start at $5/month for the Basic tier (5,000 requests/month), $29/month for Pro (50,000 requests/month), and custom Enterprise pricing. The documentation is free to read.
What scoring format does GridIron Data use?
Projections are PPR (point-per-reception), the standard format for most fantasy leagues.
How do I authenticate with the GridIron Data API?
Send your API key in the x-api-key header on every request to https://api.gridirondata.com/api/v1. Sign up to get a key — no credit card required to read the docs.
Build It Yourself — Guides
Step-by-step tutorials that turn the GridIron Data API into working fantasy tools.
Build a Draft Value (VORP) Tool
Rank every player for your draft by Value Over Replacement using live 2026 PPR projections.
Weekly Start/Sit Optimizer
Turn a roster into the optimal weekly lineup from projected points with a few API calls.
Find Breakouts & Busts
Use deviation analytics to surface players who consistently beat or miss their projections.
Stream by Matchup History
Rank weekly streaming DST, QB, and TE candidates by how they've fared against this week's opponent.