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  "markdown": "Angel investor.\n\n## Companies on Anchor Terminal\n\n- **Agentcard**\n  - [Agentcard](https://www.anchorterminal.com/tools/agentcard.md), graded C, 56.8/100\n  - Source: https://agentcard.com/about\n- **Braintrust**, Series A, October 2024\n  - [Braintrust API + MCP](https://www.anchorterminal.com/tools/braintrust.md), graded C, 61.1/100\n  - Source: https://www.braintrust.dev/blog/announcing-series-a\n- **Cal.com**, Seed\n  - [Cal.com API v2 + MCP](https://www.anchorterminal.com/tools/cal-com.md), graded C, 57.2/100\n  - Source: https://cal.com/blog/seed\n- **Chroma**, Seed, April 2023\n  - [Chroma API + MCP](https://www.anchorterminal.com/tools/chroma.md), graded E, 45.3/100\n  - Source: https://www.trychroma.com/blog/seed\n- **Extend**, Seed and Series A, June 2025\n  - [Extend API + MCP](https://www.anchorterminal.com/tools/extend.md), graded B, 62.9/100\n  - Source: https://www.extend.ai/resources/series-a\n- **fal (Features \u0026 Labels, Inc.)**, Series A, September 2024\n  - [fal image models](https://www.anchorterminal.com/tools/fal-image.md), graded B, 65.5/100\n  - [fal music models](https://www.anchorterminal.com/tools/fal-music.md), graded B, 68.5/100\n  - [fal video models](https://www.anchorterminal.com/tools/fal-video.md), graded B, 69.1/100\n  - Source: https://blog.fal.ai/generative-media-needs-speed-fal-has-raised-23m-to-accelerate/\n- **Honeycomb**\n  - [Honeycomb MCP](https://www.anchorterminal.com/tools/honeycomb-mcp.md), graded C, 58.5/100\n  - Source: https://www.aap.com.au/aapreleases/cision20230406ae63471/\n- **Inngest**, Series A, September 2025\n  - [Inngest](https://www.anchorterminal.com/tools/inngest.md), graded B, 66.1/100\n  - Source: https://www.inngest.com/blog/announcing-inngest-series-a\n- **LiveKit Incorporated**, Series A, June 2024\n  - [LiveKit Agents](https://www.anchorterminal.com/tools/livekit-agents.md), graded BB, 72.5/100\n  - [LiveKit Telephony](https://www.anchorterminal.com/tools/livekit-telephony.md), graded B, 67.6/100\n  - Source: https://livekit.com/blog/livekit-series-a\n- **Perplexity**, Series B, January 2024\n  - [SPACE](https://www.anchorterminal.com/tools/perplexity-space.md), graded C, 56.4/100\n  - [pplx-decider](https://www.anchorterminal.com/tools/pplx-decider.md), graded B, 68.2/100\n  - [pplx-decider-flash](https://www.anchorterminal.com/tools/pplx-decider-flash.md), graded B, 68/100\n  - Source: https://www.perplexity.ai/hub/blog/perplexity-raises-series-b-funding-round\n- **Railway Corporation**\n  - [Railway MCP Server](https://www.anchorterminal.com/tools/railway-mcp-server.md), graded C, 56.7/100\n  - Source: https://blog.railway.com/p/series-a\n- **Replicate (Cloudflare)**, Series A, February 2023\n  - [Replicate image models](https://www.anchorterminal.com/tools/replicate-image.md), graded D, 50.3/100\n  - [MusicGen on Replicate](https://www.anchorterminal.com/tools/replicate-musicgen.md), graded C, 54.4/100\n  - [Replicate video models](https://www.anchorterminal.com/tools/replicate-video.md), graded B, 62.2/100\n  - Source: https://techcrunch.com/2023/02/21/replicate-wants-to-take-the-pain-out-of-running-and-hosting-ml-models/\n- **Resend**, Seed, July 2023, Series A, December 2024\n  - [Resend API + MCP](https://www.anchorterminal.com/tools/resend.md), graded BB, 77.1/100\n  - Source: https://techcrunch.com/2023/07/18/developer-focused-email-platform-resend-raises-3m/\n- **Runway**, Series C, December 2022\n  - [Runway API](https://www.anchorterminal.com/tools/runway.md), graded C, 60.8/100\n  - Source: https://runway.com/news/runway-raises-50-series-c\n- **Strapi, Inc.**, Seed, October 2019\n  - [Strapi](https://www.anchorterminal.com/tools/strapi.md), graded B, 65.7/100\n  - Source: https://strapi.io/blog/announcing-strapi-4m-seed-funding-round\n- **Supabase**, Series A, October 2021, Series D, April 2025\n  - [Supabase API + MCP](https://www.anchorterminal.com/tools/supabase-mcp.md), graded BB, 75.6/100\n  - Source: https://supabase.com/blog/supabase-series-a\n- **Swell**\n  - [Swell](https://www.anchorterminal.com/tools/swell.md), graded C, 55/100\n  - Source: https://www.swell.is/about\n- **tldraw**, Seed, November 2022\n  - [tldraw SDK + MCP](https://www.anchorterminal.com/tools/tldraw.md), graded C, 60.8/100\n  - Source: https://tldraw.dev/blog/announcing-tldraws-seed-round\n- **Conway Research (maker of Underdog)**, First round, April 2026\n  - [Underdog](https://www.anchorterminal.com/tools/underdog.md), graded F, 30.1/100\n  - Source: https://underdog.ai/backers\n- **Conway Research**, First round, April 2026\n  - [Underdog Bark 3.0](https://www.anchorterminal.com/tools/underdog-bark-3.md), graded D, 48.2/100\n  - Source: https://underdog.ai/backers\n- **WorkOS**, Series B, June 2022\n  - [WorkOS Pipes and Agents](https://www.anchorterminal.com/tools/workos-pipes.md), graded C, 59.9/100\n  - Source: https://workos.com/blog/series-b\n- **Zo Computer Company**\n  - [Zo Computer](https://www.anchorterminal.com/tools/zo-computer.md), graded E, 43.2/100\n  - Source: https://www.zo.computer/team\n\n## Where they invest\n\n- Video generation, 3\n- Image generation, 2\n- Music generation, 2\n- Decision models, 2\n- Agent wallets \u0026 spending controls, 1\n- Agent observability \u0026 evals, 1\n- Calendars \u0026 scheduling, 1\n- Retrieval \u0026 vector search, 1\n- Document parsing \u0026 extraction, 1\n- Observability \u0026 incidents, 1\n- Human approval \u0026 handoff, 1\n- Conversational voice agents, 1\n- Phone calling \u0026 voice transport, 1\n- Code execution sandboxes, 1\n- Cloud \u0026 infrastructure, 1\n- Email delivery APIs, 1\n- CMS \u0026 website publishing, 1\n- Databases \u0026 files, 1\n- Commerce \u0026 checkout, 1\n- Diagramming, 1\n- Local AI, 1\n- Speech-to-text, 1\n- Agent auth \u0026 delegated access, 1\n- Personal assistants, 1\n\n## Founders they backed\n\n- [Karen Serfaty](https://www.anchorterminal.com/people/karen-serfaty/), Agentcard\n- [Felipe Abello](https://www.anchorterminal.com/people/felipe-abello/), Agentcard\n- [Jeff Huber](https://www.anchorterminal.com/people/jeff-huber/), Chroma\n- [Anton Troynikov](https://www.anchorterminal.com/people/anton-troynikov/), Chroma\n- [Kushal Byatnal](https://www.anchorterminal.com/people/kushal-byatnal/), Extend\n- [Eli Badgio](https://www.anchorterminal.com/people/eli-badgio/), Extend\n- [Burkay Gur](https://www.anchorterminal.com/people/burkay-gur/), fal (Features \u0026 Labels, Inc.)\n- [Gorkem Yurtseven](https://www.anchorterminal.com/people/gorkem-yurtseven/), fal (Features \u0026 Labels, Inc.)\n- [Charity Majors](https://www.anchorterminal.com/people/charity-majors/), Honeycomb\n- [Russ d’Sa](https://www.anchorterminal.com/people/russ-d-sa/), LiveKit Incorporated\n- [David Zhao](https://www.anchorterminal.com/people/david-zhao/), LiveKit Incorporated\n- [Aravind Srinivas](https://www.anchorterminal.com/people/aravind-srinivas/), Perplexity\n- [Denis Yarats](https://www.anchorterminal.com/people/denis-yarats/), Perplexity\n- [Johnny Ho](https://www.anchorterminal.com/people/johnny-ho/), Perplexity\n- [Andy Konwinski](https://www.anchorterminal.com/people/andy-konwinski/), Perplexity\n- [Jake Cooper](https://www.anchorterminal.com/people/jake-cooper/), Railway Corporation\n- [Ben Firshman](https://www.anchorterminal.com/people/ben-firshman/), Replicate, Replicate (Cloudflare)\n- [Andreas Jansson](https://www.anchorterminal.com/people/andreas-jansson/), Replicate, Replicate (Cloudflare)\n- [Zeno Rocha](https://www.anchorterminal.com/people/zeno-rocha/), Resend\n- [Bu Kinoshita](https://www.anchorterminal.com/people/bu-kinoshita/), Resend\n- [Paul Copplestone](https://www.anchorterminal.com/people/paul-copplestone/), Supabase\n- [Ant Wilson](https://www.anchorterminal.com/people/ant-wilson/), Supabase\n- [Sigil Wen](https://www.anchorterminal.com/people/sigil-wen/), Conway Research (maker of Underdog), Conway Research\n- [Michael Grinich](https://www.anchorterminal.com/people/michael-grinich/), WorkOS\n- [Rob Cheung](https://www.anchorterminal.com/people/rob-cheung/), Zo Computer Company\n- [Ben Guo](https://www.anchorterminal.com/people/ben-guo/), Zo Computer Company\n\n## Questions\n\n### Which AI tools has Guillermo Rauch invested in?\n\nAnchor Terminal lists Agentcard, Braintrust, Cal.com, Chroma, Extend, fal (Features \u0026 Labels, Inc.), Honeycomb, Inngest, LiveKit Incorporated, Perplexity, Railway Corporation, Replicate (Cloudflare), Resend, Runway, Strapi, Inc., Supabase, Swell, tldraw, Conway Research (maker of Underdog), Conway Research, WorkOS and Zo Computer Company backed by Guillermo Rauch.\n\n### How are Guillermo Rauch's companies graded?\n\nOn Anchor Terminal's benchmark, Agentcard (C, 56.8), Braintrust API + MCP (C, 61.1), Cal.com API v2 + MCP (C, 57.2), Chroma API + MCP (E, 45.3), Extend API + MCP (B, 62.9), fal image models (B, 65.5), fal music models (B, 68.5), fal video models (B, 69.1), Honeycomb MCP (C, 58.5), Inngest (B, 66.1), LiveKit Agents (BB, 72.5), LiveKit Telephony (B, 67.6), SPACE (C, 56.4), pplx-decider (B, 68.2), pplx-decider-flash (B, 68), Railway MCP Server (C, 56.7), Replicate image models (D, 50.3), MusicGen on Replicate (C, 54.4), Replicate video models (B, 62.2), Resend API + MCP (BB, 77.1), Runway API (C, 60.8), Strapi (B, 65.7), Supabase API + MCP (BB, 75.6), Swell (C, 55), tldraw SDK + MCP (C, 60.8), Underdog (F, 30.1), Underdog Bark 3.0 (D, 48.2), WorkOS Pipes and Agents (C, 59.9) and Zo Computer (E, 43.2).\n\nInvestors are named from the companies' own announcements, the investors' own pages, Y Combinator's company pages, public filings and news reports of a round, each with its source. An investor isn't a sign of quality, and nobody can pay to be listed or to change a grade. To correct something or have a page removed, write to privacy@anchorterminal.com.\n",
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