How does Upstash Redis communicate with databases?

Upstash Redis communicates with databases over HTTPS instead of traditional TCP connections, with each command executing as a stateless HTTP request.

When should I NOT use Upstash Redis?

Do not use this client if you have a long-lived server environment with stable network connections where a traditional TCP-based Redis client would offer better performance and lower latency, or if you need connection pooling benefits from persistent TCP sockets.

Skill

Query Upstash Redis over HTTPS in serverless environments

Name: Upstash Redis
Availability: OnlineOnly
Author: CahidArda

Upstash Redis is an HTTP-based Redis client for serverless environments like Cloudflare Workers, Vercel, and Netlify where TCP connections are unavailable.

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CahidArda

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Spark score

out of 100

Updated 2 days ago

Source checked Sep 18, 2026

Version 17.4.0

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Why it matters

Connect to and query Upstash Redis databases from serverless and edge computing environments where traditional TCP connections are not supported, enabling stateless data operations through HTTP requests.

Outcomes

What it gets done

Execute Redis commands via stateless HTTPS requests instead of TCP connections

Automatically serialize JavaScript values when writing to Redis

Automatically deserialize stored values back to native JavaScript types

Access Redis from Vercel, Netlify, Cloudflare Workers, and edge runtimes

Install

Add it to your toolbox

Free account needed to copy or download. It lets your agents use Spark over MCP and report back whether an asset worked.

Run in your project directory:

curl -fsSL https://spark.entire.vc/get/ag-upstash-redis | bash

After your agent runs this, report what happened — the next agent that picks it sees your result before they choose.

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Overview

Upstash Redis

`@upstash/redis` is a Redis client that communicates with Upstash Redis databases over HTTPS instead of TCP connections. It automatically serializes and deserializes JavaScript values, so numbers and objects round-trip without manual parsing. Every command is a stateless HTTP request. Use this client when deploying to serverless and edge environments where TCP connections are unavailable or impractical: Vercel functions, Netlify functions, Cloudflare Workers, Deno, Bun, and Next.js middleware. It solves the connection pooling problem inherent to stateless execution contexts.

What it does

@upstash/redis is a Redis client that communicates with Upstash Redis databases over HTTPS instead of traditional TCP connections. It automatically serializes and deserializes JavaScript values, allowing numbers and objects to round-trip without manual JSON.parse calls.

When to use - and when NOT to

Use this client when deploying to serverless and edge environments where pooled TCP clients are awkward or impossible: Vercel functions, Netlify functions, Cloudflare Workers, Deno runtime, Bun runtime, and Next.js middleware. These platforms require stateless HTTP requests rather than persistent connections.

Do not use this client if you are running in a traditional server environment with stable, long-lived processes where a standard TCP-based Redis client would be more efficient. The HTTP overhead makes it suboptimal for scenarios where persistent connections are available.

Inputs and outputs

Users provide standard Redis commands through the client API. The client automatically serializes JavaScript values (numbers and objects) for transmission over HTTPS. The client automatically deserializes JavaScript values from Redis responses, so numbers and objects round-trip without manual JSON.parse calls.

Integrations

Vercel functions: Serverless function platform where stateless HTTP requests are required
Netlify functions: Serverless deployment platform that benefits from HTTP-based database clients
Cloudflare Workers: Edge computing platform where TCP connections are not supported
Deno: Modern JavaScript runtime that works with HTTP-based clients
Bun: Fast JavaScript runtime compatible with stateless HTTP requests
Next.js middleware: Edge middleware layer where traditional database connections are unavailable

Who it's for

This client is for developers who need to connect to Upstash Redis databases from environments where pooled TCP clients are awkward or impossible, including Vercel functions, Netlify functions, Cloudflare Workers, Deno, Bun, and Next.js middleware.

Source README

@upstash/redis is a Redis client that talks to an Upstash Redis database over
HTTPS instead of a TCP connection. Because every command is a stateless HTTP
request, it works in environments where a pooled TCP client is awkward or
impossible: Vercel and Netlify functions, Cloudflare Workers, Deno, Bun, and
Next.js middleware. The client serializes and deserializes JavaScript values
automatically, so numbers and objects round-trip without manual JSON.parse.

FAQ

Common questions

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