head to head/Developer Tools

ListCheckup vs OptimistFi

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

community boosts

⚡ 0

pricing

Freemium

what it is

The ListCheckup REST API: verify one email address or a whole list from your own code, with an API key. Endpoints, fields, errors and webhooks.

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.