# Coasts

**Canonical:** https://apis.io/providers/coasts/  
**Website:** https://coasts.dev  
**APIs profiled:** 0

Coasts (Containerized Hosts) is an open-source, MIT-licensed CLI tool that provides localhost service isolation and orchestration for git worktrees. It spawns multiple fully isolated development runtimes for the same project on a single machine, giving each worktree its own ports, databases, and services so parallel AI coding agents (Claude Code, Cursor, Codex, Conductor, and others) can build and test side by side without clashing. Built on Docker Compose, with a thin CLI client talking to a local coastd daemon over a unix socket plus a bundled React/Vite web observability UI, Coasts is local-first and offline-capable, with optional extension to remote machines over SSH. Backed by Y Combinator (Fall 2025) and founded by Jamie Sunderland and Dan Hyman.

## Kin Score — 17.2 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 17.2).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 18.4 |
| Developer Ergonomics | 45.2 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Coasts Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Developer Tools, CLI, Git, Containers, Docker, Local Development, AI Agents, Developer Productivity, Open-Source, DevOps

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/coasts/). Scores are computed from the provider's own public artifacts under a published rubric.