Dynasty Trade Calculator API Developer Integration 2025

By Elliot — Founder, Dynasty Dealer · Updated 2026-06-11 · 7 min read

Free, keyless JSON API for dynasty player values built from real Sleeper trades. Endpoint reference, code examples, and attribution terms.

Read the full guide on Dynasty Dealer or jump straight into the tools it covers:

• Dynasty Trade Calculator
• Dynasty Trade Value Chart
• Dynasty Rankings
• What Is PPR in Fantasy Football? PPR vs Half-PPR vs Standard
• What Is a Flex in Fantasy Football? Flex Rules and Who to Start
• What Is IDP in Fantasy Football? Individual Defensive Players Explained
• What Does ADP Mean in Fantasy Football? Average Draft Position Explained
• All Dynasty Strategy Guides