# Coasty

**Canonical:** https://apis.io/providers/coasty/  
**Website:** https://coasty.ai  
**APIs profiled:** 8

Coasty is a computer-use AI agent platform (Y Combinator S26) that operates a full desktop, browser, and terminal like a human — reading the screen with vision, clicking, typing, filling forms, running commands, and verifying its own work across sandboxed virtual machines. It exposes a public REST API at coasty.ai/v1 with a published OpenAPI 3.1 spec (72 operations), a first-party MCP server (npx @coasty/mcp, 26 tools), free sandbox keys, HMAC-SHA256 webhook triggers, an Idempotency-Key contract, per-credit metered billing, and 1,000+ OAuth app integrations via Composio. Core API surfaces are Predict, Sessions, Ground, Parse, Machines, Schedules, Runs, and Workflows. Founded 2025-2026 by Prateek Jannu and Nitish Kovuru; #1 on the OSWorld benchmark among production computer-use agents.

## Kin Score — 65.6 / 100 (strong)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 65.6).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 69.1 |
| Governance | 11.5 |
| Operational Transparency | 68.4 |
| Developer Ergonomics | 73.4 |
| Commercial Clarity | 76.3 |

## Agent readiness — 68.2 (agent-native)

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

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (8)

- **Coasty keys API** — API key management and usage reporting.
- **Coasty machines API** — Provision and control managed VMs.
- **Coasty predict API** — Stateless CUA action prediction and grounding.
- **Coasty runs API** — Autonomous task runs — the agent drives a task to completion on a machine.
- **Coasty schedules API** — Cron and one-shot scheduled CUA jobs.
- **Coasty sessions API** — Stateful CUA sessions with persistent trajectory.
- **Coasty triggers API** — Webhook and chain triggers for schedules.
- **Coasty workflows API** — Versioned, branching multi-step automations (DSL) and their runs.

## MCP servers (1)

- **Coasty Computer-Use MCP Server** — First-party MCP server (npx -y @coasty/mcp; remote https://api.coasty.ai/mcp) exposing 26 computer-use tools across predict, machines, schedules, account, and discovery groups.

## Agentic access (1)

- **Coasty Agentic Access** — 72 operations · 42 acting · 5 human-in-the-loop

## Security (3)

- **Coasty Authentication** — apiKey/http · 4 schemes
- **Coasty Domain Security** — TLSv1.3 · HSTS · DMARC
- **Coasty Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Coasty Plans**

## Tags

Company, Computer Use, AI Agents, Automation, RPA, Desktop Automation, Browser Automation, MCP, Virtual Machines, Developer Tools

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