> ## Documentation Index
> Fetch the complete documentation index at: https://upstash-docs-landing-rework.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Getting Started

export const Catalog = ({product, type, featured, cols = 3}) => {
  const catalog = [{
    title: "@upstash/redis",
    description: "HTTP-based Redis client for serverless and edge.",
    href: "/redis/sdks/ts/overview",
    product: "redis",
    type: "sdk",
    lang: "typescript",
    featured: true
  }, {
    title: "upstash-redis (Python)",
    description: "Serverless Redis client for Python.",
    href: "/redis/sdks/py/overview",
    product: "redis",
    type: "sdk",
    lang: "python"
  }, {
    title: "@upstash/ratelimit",
    description: "Rate limiting for serverless, built on Redis.",
    href: "/redis/sdks/ratelimit-ts/overview",
    product: "redis",
    type: "sdk",
    lang: "typescript",
    featured: true
  }, {
    title: "ratelimit (Python)",
    description: "Rate limiting SDK for Python.",
    href: "/redis/sdks/ratelimit-py/overview",
    product: "redis",
    type: "sdk",
    lang: "python"
  }, {
    title: "@upstash/vector",
    description: "Vector database client for AI and LLM apps.",
    href: "/vector/sdks/ts/getting-started",
    product: "vector",
    type: "sdk",
    lang: "typescript",
    featured: true
  }, {
    title: "upstash-vector (Python)",
    description: "Vector database client for Python.",
    href: "/vector/sdks/py/gettingstarted",
    product: "vector",
    type: "sdk",
    lang: "python"
  }, {
    title: "@upstash/qstash",
    description: "Publish messages and schedule jobs over HTTP.",
    href: "/qstash/sdks/ts/overview",
    product: "qstash",
    type: "sdk",
    lang: "typescript",
    featured: true
  }, {
    title: "qstash-py",
    description: "QStash messaging and scheduling for Python.",
    href: "/qstash/sdks/py/overview",
    product: "qstash",
    type: "sdk",
    lang: "python"
  }, {
    title: "@upstash/workflow",
    description: "Durable serverless functions and workflows.",
    href: "/workflow/getstarted",
    product: "workflow",
    type: "sdk",
    lang: "typescript",
    featured: true
  }, {
    title: "@upstash/search",
    description: "Full-text and semantic search client.",
    href: "/search/sdks/ts/getting-started",
    product: "search",
    type: "sdk",
    lang: "typescript",
    featured: true
  }, {
    title: "BullMQ",
    description: "Message queue built on Redis.",
    href: "/redis/integrations/bullmq",
    product: "redis",
    type: "integration",
    lang: "typescript",
    featured: true
  }, {
    title: "Drizzle",
    description: "Cache Drizzle ORM queries with Upstash Redis.",
    href: "/redis/integrations/drizzle",
    product: "redis",
    type: "integration",
    lang: "typescript",
    featured: true
  }, {
    title: "Celery",
    description: "Use Upstash Redis as a Celery broker.",
    href: "/redis/integrations/celery",
    product: "redis",
    type: "integration",
    lang: "python"
  }, {
    title: "Sidekiq",
    description: "Background jobs for Ruby on Upstash Redis.",
    href: "/redis/integrations/sidekiq",
    product: "redis",
    type: "integration",
    lang: "ruby"
  }, {
    title: "MCP Server",
    description: "Manage Upstash Redis from AI agents via MCP.",
    href: "/redis/integrations/mcp",
    product: "redis",
    type: "integration",
    lang: "typescript"
  }, {
    title: "n8n (Redis)",
    description: "Automate workflows with Redis nodes in n8n.",
    href: "/redis/integrations/n8n",
    product: "redis",
    type: "integration",
    lang: "typescript"
  }, {
    title: "Prometheus (Redis)",
    description: "Scrape Upstash Redis metrics into Prometheus.",
    href: "/redis/integrations/prometheus",
    product: "redis",
    type: "integration",
    lang: "typescript"
  }, {
    title: "LangChain",
    description: "Vector store integration for LLM apps.",
    href: "/vector/integrations/langchain",
    product: "vector",
    type: "integration",
    lang: "python",
    featured: true
  }, {
    title: "Vercel AI SDK",
    description: "Back the AI SDK with Upstash Vector.",
    href: "/vector/integrations/ai-sdk",
    product: "vector",
    type: "integration",
    lang: "typescript",
    featured: true
  }, {
    title: "LlamaIndex",
    description: "Use Upstash Vector as a LlamaIndex store.",
    href: "/vector/integrations/llamaindex",
    product: "vector",
    type: "integration",
    lang: "python"
  }, {
    title: "Flowise",
    description: "Build LLM flows on Upstash Vector.",
    href: "/vector/integrations/flowise",
    product: "vector",
    type: "integration",
    lang: "typescript"
  }, {
    title: "Langflow",
    description: "Visual LLM apps backed by Upstash Vector.",
    href: "/vector/integrations/langflow",
    product: "vector",
    type: "integration",
    lang: "python"
  }, {
    title: "LlamaParse",
    description: "Parse and index documents into Upstash Vector.",
    href: "/vector/integrations/llamaparse",
    product: "vector",
    type: "integration",
    lang: "python"
  }, {
    title: "Resend",
    description: "Send emails from QStash workflows.",
    href: "/qstash/integrations/resend",
    product: "qstash",
    type: "integration",
    lang: "typescript",
    featured: true
  }, {
    title: "Anthropic",
    description: "Call Claude reliably through QStash.",
    href: "/qstash/integrations/anthropic",
    product: "qstash",
    type: "integration",
    lang: "typescript"
  }, {
    title: "LLM APIs",
    description: "Queue and retry LLM calls with QStash.",
    href: "/qstash/integrations/llm",
    product: "qstash",
    type: "integration",
    lang: "typescript"
  }, {
    title: "Datadog",
    description: "Monitor QStash with Datadog.",
    href: "/qstash/integrations/datadog",
    product: "qstash",
    type: "integration",
    lang: "typescript"
  }, {
    title: "Pipedream",
    description: "Trigger Pipedream workflows from QStash.",
    href: "/qstash/integrations/pipedream",
    product: "qstash",
    type: "integration",
    lang: "typescript"
  }, {
    title: "n8n (QStash)",
    description: "Publish QStash messages from n8n.",
    href: "/qstash/integrations/n8n",
    product: "qstash",
    type: "integration",
    lang: "typescript"
  }, {
    title: "Docusaurus",
    description: "Add full-text search to a Docusaurus site.",
    href: "/search/integrations/docusaurus",
    product: "search",
    type: "integration",
    lang: "typescript"
  }, {
    title: "AI SDK Code Interpreter",
    description: "Run AI-generated code in a Box sandbox.",
    href: "/box/guides/ai-sdk-code-interpreter",
    product: "box",
    type: "demo",
    lang: "typescript",
    featured: true
  }, {
    title: "E-commerce Order Fulfillment",
    description: "Durable order processing with Workflow.",
    href: "/workflow/examples/eCommerceOrderFulfillment",
    product: "workflow",
    type: "demo",
    lang: "typescript",
    featured: true
  }, {
    title: "Image Processing",
    description: "Fan-out image jobs with Workflow.",
    href: "/workflow/examples/imageProcessing",
    product: "workflow",
    type: "demo",
    lang: "typescript",
    featured: true
  }, {
    title: "Customer Onboarding",
    description: "Multi-step onboarding flow with delays.",
    href: "/workflow/examples/customerOnboarding",
    product: "workflow",
    type: "demo",
    lang: "typescript"
  }, {
    title: "Payment Retry",
    description: "Retry failed payments with backoff.",
    href: "/workflow/examples/paymentRetry",
    product: "workflow",
    type: "demo",
    lang: "typescript"
  }, {
    title: "Wait for Event",
    description: "Pause a workflow until an external event.",
    href: "/workflow/examples/waitForEvent",
    product: "workflow",
    type: "demo",
    lang: "typescript"
  }, {
    title: "Auth Webhook",
    description: "Handle auth webhooks durably.",
    href: "/workflow/examples/authWebhook",
    product: "workflow",
    type: "demo",
    lang: "typescript"
  }];
  const matchesProduct = entry => !product || (Array.isArray(entry.product) ? entry.product.includes(product) : entry.product === product);
  const items = catalog.filter(entry => matchesProduct(entry) && (!type || entry.type === type) && (!featured || entry.featured));
  const gridClass = "u-grid " + (cols >= 3 ? "u-grid--3" : "u-grid--2");
  return <div className={gridClass}>
      {items.map(entry => <a key={entry.href} href={entry.href} className="u-card">
          <img className="u-card__icon" src={`/img/icons/lang/${entry.lang}.svg`} alt={entry.lang} />
          <div className="u-card__body">
            <div className="u-card__title">{entry.title}</div>
            <div className="u-card__desc">{entry.description}</div>
          </div>
        </a>)}
    </div>;
};

QStash is a **serverless messaging and scheduling solution**. It fits easily into your existing workflow and allows you to build reliable systems without managing infrastructure.

Instead of calling an endpoint directly, QStash acts as a middleman between you and an API to guarantee delivery, perform automatic retries on failure, and more.

<Frame>
  <img src="https://mintcdn.com/upstash-docs-landing-rework/onxha2oH1ZYoruUe/img/qstash/qstash-benefits.png?fit=max&auto=format&n=onxha2oH1ZYoruUe&q=85&s=b3b12a709ef950f9f50384876bb9b3f0" width="1920" height="1080" data-path="img/qstash/qstash-benefits.png" />
</Frame>

<Tip href="/workflow/getstarted">
  We have a new SDK called [Upstash Workflow](/workflow/getstarted).

  **Upstash Workflow SDK** is **QStash** simplified for your complex applications

  * Skip the details of preparing a complex dependent endpoints.
  * Focus on the essential parts.
  * Enjoy automatic retries and delivery guarantees.
  * Avoid platform-specific timeouts.

  Check out [Upstash Workflow Getting Started](/workflow/getstarted) for more.
</Tip>

## Quick Start

Check out these Quick Start guides to get started with QStash in your application.

<CardGroup cols={2}>
  <Card title="Next.js" icon="node-js" href="/qstash/quickstarts/vercel-nextjs">
    Build a Next application that uses QStash to start a long-running job on your platform
  </Card>

  <Card title="Python" icon="python" href="/qstash/quickstarts/python-vercel">
    Build a Python application that uses QStash to schedule a daily job that clean up a database
  </Card>
</CardGroup>

Or continue reading to learn how to send your first message!

## Send your first message

<Check>
  **Prerequisite**

  You need an Upstash account before publishing messages, create one
  [here](https://console.upstash.com).
</Check>

### Public API

Make sure you have a publicly available HTTP API that you want to send your
messages to. If you don't, you can use something like
[requestcatcher.com](https://requestcatcher.com/), [webhook.site](https://webhook.site/) or
[webhook-test.com](https://webhook-test.com/) to try it out.

For example, you can use this URL to test your messages: [https://firstqstashmessage.requestcatcher.com](https://firstqstashmessage.requestcatcher.com)

### Get your token

Go to the [Upstash Console](https://console.upstash.com/qstash) and copy the
`QSTASH_TOKEN`.

<Frame>
  <img src="https://mintcdn.com/upstash-docs-landing-rework/onxha2oH1ZYoruUe/img/qstash/rest_token.png?fit=max&auto=format&n=onxha2oH1ZYoruUe&q=85&s=40a4a31991705f4276392a34cacd6f8f" width="1090" height="402" data-path="img/qstash/rest_token.png" />
</Frame>

### Publish a message

A message can be any shape or form: json, xml, binary, anything, that can be
transmitted in the http request body. We do not impose any restrictions other
than a size limit of 1 MB (which can be customized at your request).

In addition to the request body itself, you can also send HTTP headers. Learn
more about this in the [message publishing section](/qstash/howto/publishing).

<CodeGroup>
  ```bash cURL theme={null}
  curl -XPOST \
      -H 'Authorization: Bearer <QSTASH_TOKEN>' \
      -H "Content-type: application/json" \
      -d '{ "hello": "world" }' \
      'https://qstash.upstash.io/v2/publish/https://<your-api-url>'
  ```

  ```bash cURL RequestCatcher theme={null}
  curl -XPOST \
      -H 'Authorization: Bearer <QSTASH_TOKEN>' \
      -H "Content-type: application/json" \
      -d '{ "hello": "world" }' \
      'https://qstash.upstash.io/v2/publish/https://firstqstashmessage.requestcatcher.com/test'
  ```
</CodeGroup>

Don't worry, we have SDKs for different languages so you don't
have to make these requests manually.

### Check Response

You should receive a response with a unique message ID.

<Frame>
  <img src="https://mintcdn.com/upstash-docs-landing-rework/onxha2oH1ZYoruUe/img/qstash/reqcatcher.png?fit=max&auto=format&n=onxha2oH1ZYoruUe&q=85&s=bff2718f197d8dbd6075498481d32fc9" width="1456" height="580" data-path="img/qstash/reqcatcher.png" />
</Frame>

### Check Message Status

Head over to [Upstash Console](https://console.upstash.com/qstash) and go to the
`Logs` tab where you can see your message activities.

<Frame>
  <img src="https://mintcdn.com/upstash-docs-landing-rework/onxha2oH1ZYoruUe/img/qstash/log.png?fit=max&auto=format&n=onxha2oH1ZYoruUe&q=85&s=c6ee0815422beeb13d350b15d784e888" width="2026" height="660" data-path="img/qstash/log.png" />
</Frame>

Learn more about different states [here](/qstash/howto/debug-logs).

## Features and Use Cases

<CardGroup cols={2}>
  <Card title="Background Jobs" icon="share-all" href="/qstash/features/background-jobs">
    Run long-running tasks in the background, without blocking your application
  </Card>

  <Card title="Schedules" icon="calendar-days" href="/qstash/features/schedules">
    Schedule messages to be delivered at a time in the future
  </Card>

  <Card title="Fan out" icon="arrows-maximize" href="/qstash/features/url-groups">
    Publish messages to multiple endpoints, in parallel, using URL Groups
  </Card>

  <Card title="FIFO" icon="right-left" href="/qstash/features/queues#ordered-delivery">
    Enqueue messages to be delivered one by one in the order they have enqueued.
  </Card>

  <Card title="Flow Control" icon="arrows-up-to-line" href="/qstash/features/flowcontrol">
    Custom rate per second and parallelism limits to avoid overflowing your endpoint.
  </Card>

  <Card title="Callbacks" icon="phone" href="/qstash/features/callbacks">
    Get a response delivered to your API when a message is delivered
  </Card>

  <Card title="Retry Failed Jobs" icon="repeat" href="/qstash/features/dlq">
    Use a Dead Letter Queue to have full control over failed messages
  </Card>

  <Card title="Deduplication" icon="copy" href="/qstash/features/deduplication">
    Prevent duplicate messages from being delivered
  </Card>

  <Card title="LLM Integrations" icon="shapes" href="/qstash/integrations/llm">
    Publish, enqueue, or batch chat completion requests using large language models with QStash
    features.
  </Card>
</CardGroup>

## SDKs

<Catalog product="qstash" type="sdk" cols={3} />

## Integrations

<Catalog product="qstash" type="integration" cols={3} />

## Do more from the console

Inspect messages, retries, and schedules without leaving the dashboard.

<Tabs>
  <Tab title="Logs">
    <Frame>
      <img src="https://mintcdn.com/upstash-docs-landing-rework/onxha2oH1ZYoruUe/img/qstash/log.png?fit=max&auto=format&n=onxha2oH1ZYoruUe&q=85&s=c6ee0815422beeb13d350b15d784e888" alt="QStash message logs in the console" width="2026" height="660" data-path="img/qstash/log.png" />
    </Frame>
  </Tab>

  <Tab title="DLQ">
    <Frame>
      <img src="https://mintcdn.com/upstash-docs-landing-rework/onxha2oH1ZYoruUe/img/qstash/dlq-console.png?fit=max&auto=format&n=onxha2oH1ZYoruUe&q=85&s=cac38ef66c825cb54f57d73155464ec8" alt="QStash dead-letter queue" width="2064" height="1302" data-path="img/qstash/dlq-console.png" />
    </Frame>
  </Tab>

  <Tab title="Schedules">
    <Frame>
      <img src="https://mintcdn.com/upstash-docs-landing-rework/onxha2oH1ZYoruUe/img/qstash/schedule.png?fit=max&auto=format&n=onxha2oH1ZYoruUe&q=85&s=2c50e027c10585ec997ddb34815ffbce" alt="QStash schedules" width="1978" height="1268" data-path="img/qstash/schedule.png" />
    </Frame>
  </Tab>
</Tabs>