head to head/Developer Tools

Layer vs LongSpan

Neck and neck on boosts. Profiles, pricing and deals below.

Layer

one API for Kalshi and Polymarket

community boosts

⚡ 0

pricing

Paid

what it is

One API for prediction markets. Find markets, stream normalized data, place orders, and track positions across Kalshi and Polymarket.

LongSpan

Use LongSpan from your assistant

community boosts

⚡ 0

pricing

Freemium

what it is

Connect Claude, ChatGPT or another assistant to your LongSpan plan: what it can read, what it can change with your permission, and how you stay in charge.