Coasty
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.
Coasty publishes 8 API contracts indexed on the APIs.io network, including Keys API, Machines API, Predict API, and 5 more. Tagged areas include Company, Computer Use, AI Agents, Automation, and RPA.
The Coasty catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.
Coasty’s developer surface includes authentication, documentation, API reference, getting-started guide, engineering blog, pricing, signup flow, and 32 more developer resources.
What this lets a business do 4
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
Kin Score
Markets this provider is in provisional
The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.
| Market | Position | Depth | Registered MCP server | Declares compatibility |
|---|---|---|---|---|
| RPA and Document AI (RPA marketplaces, intelligent document processing) | undeclared | - | - | - |
Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
Standards implemented 2
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
APIs 8
Individual APIs this provider publishes, each with its own machine-readable definition.
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.
Scroll for all 8
Postman Collections 8
Ready-to-run Postman collections for exercising this provider's APIs.
Coasty Public keys API
POSTMANCoasty Public keys runs API
POSTMANScroll for all 8
Open Collections 8
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Coasty Public keys API
OPEN COLLECTIONCoasty Public keys machines API
OPEN COLLECTIONCoasty Public keys predict API
OPEN COLLECTIONCoasty Public keys runs API
OPEN COLLECTIONCoasty Public keys schedules API
OPEN COLLECTIONCoasty Public keys sessions API
OPEN COLLECTIONCoasty Public keys triggers API
OPEN COLLECTIONCoasty Public keys workflows API
OPEN COLLECTIONScroll for all 8
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
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.
MCP SERVERAgent Skills 4
Packaged agent skills for driving this provider's APIs from an AI assistant.
Predict UI actions from a screenshot
AGENT SKILLProvision and control a machine
AGENT SKILLRun an autonomous computer-use task
AGENT SKILLSchedule recurring automation
AGENT SKILLCoasty API pricing
Prices published by Coasty, read 2026-10-28 from coasty.ai/pricing.
| Plan | Price |
|---|---|
| Pay as you go | $0.05 per managed step Includes: First $5 on us, Managed machines included, Every step streamed, No monthly minimum |
| Developer | $19 per month Includes: $25 of API credit every month, Developer dashboard, Same $0.05 managed steps |
| Enterprise | Custom pricing Includes: Custom credits, dedicated VMs, SLA, SSO, and priority support |
Plan details, limits and sources →
Billed by: managed step · FinOps profile →
Pricing Plans 2
Published pricing tiers and plan structures.
Coasty Plans
PLANSRate Limits 1
Documented rate limits and quota policies.
Coasty Rate Limits
RATE LIMITSService Levels 1
Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.
Coasty
SLAFinOps 1
Cost, billing, and metering signals for API financial operations.
Coasty Finops
FINOPSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Coasty Webhooks
ASYNCAPISpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Coasty API Rules
SPECTRALOpenAPI Overlays 1
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
Coasty Openapi Overlay
DERIVEDSecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 4
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
Scroll for all 7
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 5
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 2
Properties that don't map to a standard resource type
Source (apis.yml)
Coasty API — frequently asked questions
Does Coasty have an API?
Yes. APIs.io lists 8 APIs from Coasty, including Coasty Keys API, Coasty Machines API and Coasty Predict API, and 5 more.
Is there an OpenAPI specification for the Coasty API?
Yes. APIs.io indexes 8 OpenAPI specifications for Coasty, each linked for download from this page.
How do I authenticate with the Coasty API?
Coasty uses bearer-token authentication (apiKey/http · 4 schemes). The details are profiled on APIs.io as Coasty Authentication.
How much does the Coasty API cost?
Coasty publishes its prices; its Pay as you go plan is $0.05 per managed step as of 2026-10-28. APIs.io lists 3 pricing plans for Coasty, with each plan's price, limits and inclusions under Pricing on this page.
Does Coasty have an MCP server?
Yes. APIs.io lists 1 MCP server for Coasty: 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.
Is the Coasty API ready for AI agents?
Coasty has a Kin Score of 63.4 out of 100 (strong) and an Agent Readiness score of 47.0 (agent-native), scored by API Evangelist on 2026-11-06.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.