F4 is a pre-seed fund. We write your first check, and help you find the right investors.

Free. A ranked list of about 100 funds for your round.

3,315 funds in our network. Say what you are building to see which ones fit.

Add F4 Raise to ChatGPT, and your agent knows which investors fit your company.

Claude and other assistants
Add a custom connector with this address:https://app.f4.fund/api/public/raise/mcp

Free, and no account needed. What it does and what it stores

Companies F4 has backed