Coasts | Y Combinator
Fall 2025 batch; containerized localhost isolation for parallel AI agent worktrees.
Weak funding evidence: mention does not include a parsed raise amount/round and may refer to non-funding context.
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Evidence-bound summary — expand sections for movement, risks, and signals.
Memo snapshot · May 20, 2026, 6:21 PM
What would change this read
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TL;DR
Seed (YC)Coasts — Containerized Hosts for AI Agents Free, open source parallel runtimes for AI agents
Raised $500K across 1 funding round. Latest: $500K Pre-seed (Sep 2025). Investors: Y Combinator. (High).
Funding
Raised $500K across 1 funding round. Latest: $500K Pre-seed (Sep 2025). Investors: Y Combinator. (High).
Product / news
1 product/news‑styled row(s); headline risk without filings (High).
Verified facts
Fall 2025 batch; containerized localhost isolation for parallel AI agent worktrees.
Weak funding evidence: mention does not include a parsed raise amount/round and may refer to non-funding context.
No open roles indexed yet.
The index price and activity score are algorithmic estimates based on observed public company-level signals. They may be incomplete, stale, or inaccurate and are not investment, legal, tax, or business advice.
Source types found
Strongest / recent news-style rows
Wed, May 20, 06:21 PM · confidence 88%high quality
Newest first · 5 event(s)
Source: Blog
Engineering blog from the Coasts team — technical deep dives, tutorials, and release notes.
Source: Homepage
Free, open source parallel runtimes for AI agents. Run multiple isolated environments on your machine — no cloud, no conflicts.
Source: GitHub (linked from site)
GitHub presence linked from official site for Coasts.
Fall 2025 batch; containerized localhost isolation for parallel AI agent worktrees.
Parallel runtimes for AI agents with isolated localhost services.
2 row(s)
The company's own site — the authoritative description of what they sell and to whom. Marketing-controlled, so treat claims as positioning rather than verified traction.
Free, open source parallel runtimes for AI agents. Run multiple isolated environments on your machine — no cloud, no conflicts.
Why it matters: Primary source — the company's own positioning; best read for what they sell and to whom, not for traction claims.
Open source ↗Parallel runtimes for AI agents with isolated localhost services.
Why it matters: Primary source — the company's own positioning; best read for what they sell and to whom, not for traction claims.
Open source ↗1 row(s)
Funding announcements and investor-database records. The strongest public signal of capitalization: round, amount, and syndicate quality when disclosed.
Fall 2025 batch; containerized localhost isolation for parallel AI agent worktrees.
Why it matters: Funding signal — Pre-Seed per this source; verify against the linked original before relying on it.
Open source ↗1 row(s)
Public engineering activity. Sustained commits, releases, and stars indicate real product development and, for dev tools, developer adoption.
GitHub presence linked from official site for Coasts.
Why it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.
Open source ↗1 row(s)
Company blog and newsletters. Shipping cadence and technical depth of posts hint at product velocity and team quality.
Engineering blog from the Coasts team — technical deep dives, tutorials, and release notes.
Why it matters: Company publishing — post cadence and depth hint at product velocity.
Open source ↗Sign in as an active team member to view private notes, watchlist controls, transcript evidence, and interaction history.