head to head/Developer Tools

exchangerate.dev vs OptimistFi

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

exchangerate.dev

Exchange Rate API for Developers

community boosts

⚡ 0

pricing

Freemium

what it is

Get current and historical exchange rates in JSON, with source and observation time included. Try the API without a key, or start with 10,000 free requests each month.

OptimistFi

Perps MCP for Claude: Funding, Open Interest & Risk

community boosts

⚡ 0

pricing

Paid

what it is

Perpetual futures in Claude: fresh Hyperliquid books, cross-venue funding, open interest and positioning. Read-only MCP with source clocks.