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  "markdown": "Co-founder.\n\nBailey Pumfleet co-founded Cal.com with Peer Richelsen. By the 2022 seed round the two had grown the company to eight core team members. Pumfleet wrote Cal.com's April 2026 post announcing that it would go closed source after five years as open source, citing security risks from AI-driven vulnerability discovery.\n\n## What Bailey builds\n\n- [Cal.com API v2 + MCP](https://www.anchorterminal.com/tools/cal-com.md), graded C, 57.2/100, in Calendars \u0026 scheduling. Scheduling API behind Cal.com's booking pages. Co-founder, researched 2026-10-29.\n\n## Works with\n\n- [Peer Richelsen](https://www.anchorterminal.com/people/peer-richelsen/), Co-founder\n\n## Backed by\n\n- [OSS Capital](https://www.anchorterminal.com/investors/oss-capital/)\n- [Remote First Capital](https://www.anchorterminal.com/investors/remote-first-capital/)\n- [Tribe Capital](https://www.anchorterminal.com/investors/tribe-capital/)\n- [On Deck](https://www.anchorterminal.com/investors/on-deck/)\n- [Naval Ravikant](https://www.anchorterminal.com/investors/naval-ravikant/)\n- [James Beshara](https://www.anchorterminal.com/investors/james-beshara/)\n- [Liu Jiang](https://www.anchorterminal.com/investors/liu-jiang/)\n- [Chad Hurley](https://www.anchorterminal.com/investors/chad-hurley/)\n- [Tod Sacerdoti](https://www.anchorterminal.com/investors/tod-sacerdoti/)\n- [Balaji S. Srinivasan](https://www.anchorterminal.com/investors/balaji-s-srinivasan/)\n- [Neha Narkhede](https://www.anchorterminal.com/investors/neha-narkhede/)\n- [Eliot Horowitz](https://www.anchorterminal.com/investors/eliot-horowitz/)\n- [Job van der Voort](https://www.anchorterminal.com/investors/job-van-der-voort/)\n- [Harini Janakiraman](https://www.anchorterminal.com/investors/harini-janakiraman/)\n- [Glenn Solomon](https://www.anchorterminal.com/investors/glenn-solomon/)\n- [Alex Bouaziz](https://www.anchorterminal.com/investors/alex-bouaziz/)\n- [Guillermo Rauch](https://www.anchorterminal.com/investors/guillermo-rauch/)\n- [Cassidy Williams](https://www.anchorterminal.com/investors/cassidy-williams/)\n- [Paul Copplestone](https://www.anchorterminal.com/investors/paul-copplestone/)\n- [Arjun Sethi](https://www.anchorterminal.com/investors/arjun-sethi/)\n\n## Questions\n\n### Who is Bailey Pumfleet?\n\nBailey Pumfleet co-founded Cal.com with Peer Richelsen. By the 2022 seed round the two had grown the company to eight core team members. Pumfleet wrote Cal.com's April 2026 post announcing that it would go closed source after five years as open source, citing security risks from AI-driven vulnerability discovery.\n\n### What does Cal.com make?\n\nAnchor Terminal lists Cal.com API v2 + MCP from Cal.com. Scheduling API behind Cal.com's booking pages.\n\n### Who has invested in Cal.com?\n\nThe sources our research read name OSS Capital, Remote First Capital, Tribe Capital, On Deck, Naval Ravikant, James Beshara, Liu Jiang, Chad Hurley, Tod Sacerdoti, Balaji S. Srinivasan, Neha Narkhede, Eliot Horowitz, Job van der Voort, Harini Janakiraman, Glenn Solomon, Alex Bouaziz, Guillermo Rauch, Cassidy Williams, Paul Copplestone and Arjun Sethi.\n\n### How are Bailey's tools graded?\n\nCal.com API v2 + MCP is graded C, 57.2 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://cal.com/about\n- https://cal.com/scheduling/customer-support\n- https://github.com/PeerRich\n- https://cal.com/blog/series-a-memo\n- https://github.com/calcom\n\nThese are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.\n",
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