workflow/docs/api-reference/workflow-api/index.mdx

Workflow SDK - Build durable, resilient, and observable workflows

---
title: "workflow/api"
description: Runtime functions to inspect runs, start workflows, and manage hooks.
type: overview
summary: Explore runtime functions for starting workflows, inspecting runs, and managing hooks.
---

The `workflow/api` package provides runtime functions to inspect runs, start new runs, and manage hooks.

## Functions

<Cards>
    <Card href="/docs/api-reference/workflow-api/start" title="start()">
        Start/enqueue a new workflow run.
    </Card>
    <Card href="/docs/api-reference/workflow-api/resume-hook" title="resumeHook()">
        Resume a workflow by sending a payload to a hook.
    </Card>
    <Card href="/docs/api-reference/workflow-api/resume-webhook" title="resumeWebhook()">
        Resume a workflow by sending a `Request` to a webhook.
    </Card>
    <Card href="/docs/api-reference/workflow-api/get-hook-by-token" title="getHookByToken()">
        Get hook details and metadata by its token.
    </Card>
    <Card href="/docs/api-reference/workflow-api/get-run" title="getRun()">
        Get workflow run status and metadata without waiting for completion.
    </Card>
    <Card href="/docs/api-reference/workflow-api/register-lifecycle-hooks" title="registerLifecycleHooks()">
        Observe run completions and failures with global handlers.
    </Card>
</Cards>

<Callout type="info">
  Looking for `getWorld()` and the World SDK? They are exported from `workflow/runtime`. See the [`workflow/runtime` reference](/docs/api-reference/workflow-runtime).
</Callout>