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Castari

Pre-Seed
www.castari.comB2BSan Francisco, CA, USA
Market index

Market data is refreshed once per day from public sources. Information may be incomplete or outdated — verify independently before making decisions. This is not investment advice.

Beta

DealFlow OS uses public web data and automated enrichment. Research may be incomplete, outdated, or incorrect. Verify important information before making investment or outreach decisions.

Investor read

Evidence-bound summary — expand sections for movement, risks, and signals.

Memo snapshot · May 20, 2026, 6:22 PM

Beta

DealFlow OS uses public web data and automated enrichment. Research may be incomplete, outdated, or incorrect. Verify important information before making investment or outreach decisions.

What they do

Castari — Build & Deploy AI Agents Production runtime for Claude Agent SDK-based agents.

Funding

Raised $500K across 1 funding round. Latest: $500K Pre-seed (Sep 2025). Investors: Y Combinator. (High).

Quick read

  • •Castari — Build & Deploy AI Agents Production runtime for Claude Agent SDK-based agents.
  • •Sector narrative limited in indexed snippets; verify on primary sources (castari.com).
  • •Indexed activity snapshot: 1 funding‑related row(s), 1 hiring‑related, 0 GitHub‑tagged, 0 product/news‑style — scoring reflects corpus coverage only.

Stage

Seed (YC)

Evidence summary

Verified facts

  • •Castari — Build & Deploy AI Agents Production runtime for Claude Agent SDK-based agents.
  • •Sector narrative limited in indexed snippets; verify on primary sources (castari.com).
  • •Indexed activity snapshot: 1 funding‑related row(s), 1 hiring‑related, 0 GitHub‑tagged, 0 product/news‑style — scoring reflects corpus coverage only.

Recent movers

  • •May 20, 2026 · ycombinator.com — Castari (MadeThis) | Y Combinator
  • •May 11, 2026 · Careers — Castari - Build & Deploy AI Agents
  • •May 20, 2026 · ycombinator.com — Castari (MadeThis) | Y Combinator
  • •May 11, 2026 · Careers — Castari - Build & Deploy AI Agents
  • •Y Combinator

Funding

Raised $500K across 1 funding round. Latest: $500K Pre-seed (Sep 2025). Investors: Y Combinator. (High).

Hiring

1 hiring‑related row(s); role‑spam risk if mostly generic boards (Low).

GitHub

No GitHub‑linked evidence indexed (Low).

Product / news

Limited product/news coverage in corpus (Low).

Traffic / social

No traffic/social evidence indexed (Low).

Funding & hiring signals

funding_articleMay 20, 2026Confidence: high

Castari (MadeThis) | Y Combinator

YC Fall 2025; Vercel-like deploy/runtime for Claude Agent SDK agents (`cast deploy`).

Affected score: yesObserved: May 20, 2026Round: Pre-Seed
raisedpre-seed

Open roles (indexed)

  • See open rolesLinkedIn / Indeed
  • Founding EngineerSan Francisco, CALinkedIn / Indeed

Failed or blocked links

  • public_page:_pressnot_found
    Last checked Mon, May 11, 04:58 AM

    HTTP 404

  • public_page:_newsnot_found
    Last checked Mon, May 11, 04:58 AM

    HTTP 404

  • public_page:_jobsnot_found
    Last checked Mon, May 11, 04:58 AM

    HTTP 404

  • public_page:_companynot_found
    Last checked Mon, May 11, 04:58 AM

    HTTP 404

  • public_page:_blognot_found
    Last checked Mon, May 11, 04:58 AM

    HTTP 404

  • public_page:_aboutnot_found
    Last checked Mon, May 11, 04:58 AM

    HTTP 404

  • public_page:customersnot_found
    Last checked Sun, May 10, 11:01 PM

    HTTP 404

  • public_page:pricingnot_found
    Last checked Sun, May 10, 11:01 PM

    HTTP 404

  • public_page:pressnot_found
    Last checked Sun, May 10, 11:01 PM

    HTTP 404

  • public_page:newsnot_found
    Last checked Sun, May 10, 11:01 PM

    HTTP 404

  • public_page:blognot_found
    Last checked Sun, May 10, 11:01 PM

    HTTP 404

  • public_page:jobsnot_found
    Last checked Sun, May 10, 11:01 PM

    HTTP 404

DealFlow growth score
49.0Moderate public activity signal
7D-39%
30D+0%
High Confidence

The score is an algorithmic estimate based on observed public company-level signals. It may be incomplete, stale, or inaccurate and is not investment, legal, tax, or business advice.

Source health

  • public_market_enrichmentok
    Last checked Mon, May 11, 04:58 AM
  • public_page:_careersok
    Last checked Mon, May 11, 04:58 AM
  • public_page:_ok
    Last checked Mon, May 11, 04:58 AM
  • public_page:homeok
    Last checked Mon, May 11, 04:58 AM
  • public_page:careersok
    Last checked Sun, May 10, 11:01 PM

DealFlow score momentum

497D -3930D +0
100500
2026-05-20: 49

More runs will build history.

The score is an algorithmic estimate based on observed public company-level signals. It may be incomplete, stale, or inaccurate and is not investment, legal, tax, or business advice.

Signal breakdown

Latest momentum signal per category. Expand a card to inspect raw payloads.

Public source summary

Total evidence rows
4
Latest evidence
Wed, May 20, 06:22 PM

Source types found

careers_pagecompany_sitefunding_articlepress

Strongest / recent news-style rows

  • Castari (MadeThis) | Y Combinator

    Wed, May 20, 06:22 PM · confidence 88%high quality

    https://www.ycombinator.com/companies/castari

Public signal timeline

Newest first · 4 event(s)

1
Wed, May 20, 06:22 PM · company_site · 85% · verified_publichigh quality

Castari — Build & Deploy AI Agents

Production runtime for Claude Agent SDK-based agents.

Source ↗
2
Wed, May 20, 06:22 PM · funding_article · 88% · verified_publichigh quality

Castari (MadeThis) | Y Combinator

YC Fall 2025; Vercel-like deploy/runtime for Claude Agent SDK agents (`cast deploy`).

Source ↗
3
Mon, May 11, 04:58 AM · careers_page · 90% · publichigh quality

Castari - Build & Deploy AI Agents

Source: Careers

The deployment platform for Claude agents. Build, deploy, and scale AI agents with one command.

Source ↗
4
Wed, May 20, 06:22 PM · press · 85% · verified_publiclow quality

castari/cli on GitHub

CLI for deploying agents to Castari sandboxes.

Source ↗

Official / company site

1 row(s)

company_site·Wed, May 20, 06:22 PM·Confidence 85%high qualityverified_public

Castari — Build & Deploy AI Agents

Production runtime for Claude Agent SDK-based agents.

https://www.castari.com/

Funding / news

1 row(s)

funding_article·Wed, May 20, 06:22 PM·Confidence 88%high qualityverified_public

Castari (MadeThis) | Y Combinator

YC Fall 2025; Vercel-like deploy/runtime for Claude Agent SDK agents (`cast deploy`).

https://www.ycombinator.com/companies/castari

Hiring

1 row(s)

careers_page·Mon, May 11, 04:58 AM·Confidence 90%high qualitypublic

Castari - Build & Deploy AI Agents

Source name: Careers

The deployment platform for Claude agents. Build, deploy, and scale AI agents with one command.

https://www.castari.com/careers

GitHub

1 row(s)

press·Wed, May 20, 06:22 PM·Confidence 85%low qualityverified_public

castari/cli on GitHub

CLI for deploying agents to Castari sandboxes.

https://github.com/castari/cli

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