HotKV

HotKV

HotKV Ltd
Symas LMDB

Symas LMDB

Symas Corporation
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About

HotKV is a commercial, Redis-compatible in-memory data store for application developers and infrastructure teams. Its C++20 server executes commands across multiple CPU cores and supports RESP2/RESP3 clients, persistence, Lua scripting, clustering, key-value workloads, and vector similarity search. Additional modules provide prompt and semantic caching, RAG retrieval, LLM usage and budget tracking, and AI-agent memory; AI modules are available on HotKV Cloud’s Performance and Scale plans and by license for on-premise deployments. HotKV Cloud is a managed service with dedicated instances, while On-Premise runs on x86_64 or ARM64 Linux in a customer’s infrastructure. Redis command and behavior compatibility varies, so teams should verify the commands and features their applications require before migration.

About

Symas LMDB is an extraordinarily fast, memory-efficient database we developed for the OpenLDAP Project. With memory-mapped files, it has the read performance of a pure in-memory database while retaining the persistence of standard disk-based databases. Bottom line, with only 32KB of object code, LMDB may seem tiny. But it’s the right 32KB. Compact and efficient are two sides of a coin; that’s part of what makes LMDB so powerful. Symas offers fixed-price commercial support to those using LMDB in your applications. Development occurs in the OpenLDAP Project‘s git repo in the mdb.master branch. Symas LMDB has been written about, talked about, and utilized in a variety of impressive products and publications.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Not Supported
Linux Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Backend developers, database engineers, and infrastructure teams evaluating Redis-compatible data stores, caching, vector search, or AI agent memory.

Audience

Anyone in need of a Database as a Service

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Supported
24/7 Live Support Supported
Online Supported

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$0.03/hour
HotKV Cloud Starter starts at $0.03/hour and is billed monthly or yearly in advance. Starter instances have 2 vCores, 2–8 GB RAM, and 10–40 GB disk; prices vary by region and instance size. On-premise licensing is separate.
Free Version Not Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

HotKV Ltd
Founded: 2026
United Kingdom
hotkv.com

Company Information

Symas Corporation
Founded: 1999
United States
symas.com/lmdb/

Alternatives

Alternatives

Redis

Redis

Redis Labs
5.0 out of 5 stars
TerarkDB

TerarkDB

Terark
Dragonfly

Dragonfly

DragonflyDB
4.9 out of 5 stars
eXtremeDB

eXtremeDB

McObject
AsparaDB

AsparaDB

Alibaba

Categories

Categories

Integrations

Claude Supported
Cursor Supported
LDAP Not Supported
LangChain Supported
LangGraph Supported
LiteLLM Supported
LlamaIndex Supported
Model Context Protocol (MCP) Supported
OpenAI Supported
Vercel AI SDK Supported

Integrations

Claude Not Supported
Cursor Not Supported
LDAP Supported
LangChain Not Supported
LangGraph Not Supported
LiteLLM Not Supported
LlamaIndex Not Supported
Model Context Protocol (MCP) Not Supported
OpenAI Not Supported
Vercel AI SDK Not Supported
Claim HotKV and update features and information
Claim HotKV and update features and information
Claim Symas LMDB and update features and information
Claim Symas LMDB and update features and information