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Build with One Horizon

Developer docs are for software that needs to work with a workspace: AI assistants, terminal workflows, internal services, customer-facing apps, and event-driven automation.

Building from your own app or automation? Start with the job: read or update workspace data, connect an AI assistant, run terminal workflows, sign users in, or react to events. Already know the REST route or webhook event? Open the API reference.

Agent execution has its own docs. For sending work to apps, running local agents, or building agents that claim queued work, start by choosing how agents run. Workflows covers agent-driven runs with human gates, branch handoff, and workflow-produced documents.

Pick the right surface

SurfaceBest for
MCPConnect AI assistants to workspace context and tools.
CLIWork from the terminal, inspect work, send items to coding tools, and run local agents.
API KeysAuthenticate trusted server-side API and SDK calls for one workspace.
REST APIRead or update workspace data from your app, service, script, or CI job.
JavaScript SDKGenerated TypeScript clients and types for Node.js.
OAuth AppsAdd Log in with One Horizon or Connect One Horizon to an app that needs user-approved workspace access.
WebhooksNotify a service when workspace events happen.

Building an agent?

Start by choosing how agents run. Agent docs cover sending work to an app, running local agents, building local or cloud agents, and orchestrating multi-step workflows.

From there, choose Build a Local Agent for work that runs on your machine or Build a Cloud Agent for a shared service.

PreviousWindsurfNextMCP

Build Cloud

Build a cloud agent that stays online and claims queued sessions or workflow steps.

Custom app

Build a custom integration with OAuth apps, webhooks, the REST API, and the JavaScript SDK.

Claude Code

Claude Code

Let Claude Code use One Horizon work as the brief through MCP or a local agent.

Cursor

Cursor

Let Cursor use One Horizon work as the brief through MCP or a local agent.

  • Pick the right surface
  • Building an agent?
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