Find Open Source angel investors with your AI agent
AngelBacked tracks 470 angels and VCs who invest in Open Source. Connect it to Claude, ChatGPT or Cursor and your agent can search them, check who backed what, and pull emails for the ones worth a conversation, without you leaving the chat.
Included with the Annual plan. Data updated October 2026.
Prompts that work for Open Source
Paste one into your agent once AngelBacked is connected.
Open Source specialists
- Matt MullenwegWordPress · 67 portfolio companies
- Guy GamzuFiverrcom · 17 portfolio companies
- Andrew HoppinNuCivic · 15 portfolio companies
- Dries BuytaertAcquia · 15 portfolio companies
- Rasmus BjerngaardNorthcap Partners · 13 portfolio companies
- Brian MarksTrinket · 12 portfolio companies
Most co-backed companies
Companies backed by the most Open Source investors. Ask your agent who backed them.
- MindsDB35 investors
- Gitpod34 investors
- Adverity33 investors
- Inkitt28 investors
- refurbed28 investors
- TWAICE28 investors
Where they are
- San Francisco58
- London20
- Menlo Park12
- Austin11
- Palo Alto11
Latest Open Source rounds
What recent_funding_rounds returns for this market right now.
| Company | Stage | Amount | Date |
|---|---|---|---|
| Neander | Seed | $2.6M | Sep 25 |
| Temporal Technologies | Series E | $550M | Sep 14 |
| Robocurve | Seed | $10M | Sep 14 |
| OneTriangle | Pre-Seed | $500K | Sep 10 |
| Akon Labs | Pre-Seed | $500K | Sep 10 |
Connect in one line
Create a key in Account Settings, then add the server. In Claude Code:
claude mcp add --transport http angelbacked https://www.angelbacked.co/api/mcp \
--header "Authorization: Bearer ab_your_key"Your agent will call it like this:
{
"name": "search_investors",
"arguments": {
"market": "Open Source",
"location": "San Francisco",
"min_portfolio": 10
}
}Claude desktop, ChatGPT and Cursor instructions are in the full setup guide.
Questions
Can an AI agent find Open Source angel investors?
Yes. Connect AngelBacked to Claude, ChatGPT, Cursor or any MCP client and your agent can search the 470 Open Source investors in the database, filter them by location and activity, read their portfolios and reveal the emails of the ones you want to contact.
Where are most Open Source investors based?
By AngelBacked's data the largest groups are in San Francisco (58), London (20), Menlo Park (12), Austin (11), Palo Alto (11). Ask your agent for "Open Source angels in San Francisco" to start there.
What does it cost?
MCP and API access is included with the AngelBacked Annual plan. Fair-use limits apply: 150 requests a day, 25 results per request, and email reveals from the same allowance as the website.