AgentRecall vs LMCache

AgentRecall and LMCache are both inference engines & infra tracked by AIDiveForge. Below is a side-by-side comparison of pricing, capabilities, platforms, and ownership — sourced from each tool's live website and verified before publishing.

AgentRecall

AgentRecall is a memory layer that gives AI agents persistent context across sessions — so a support agent recalls a customer's past issue, a sales agent remembers where a deal stalled, and a coding assistant doesn't ask you to re-explain your architecture for the third time. The vendor describes a retrieval-and-storage infrastructure that indexes memories and surfaces relevant ones at query time, rather than stuffing the full conversation history into every prompt. The cloud tier caps at 1,000 stored memories, which is adequate for prototyping but a ceiling teams hit in production. Self-hosting under the MIT license removes that ceiling and keeps data inside your own infrastructure — the tradeoff is that you own the ops. API access covers JavaScript and Python environments.

LMCache

The library plugs into vLLM or TGI backends and stores KV cache tensors so that overlapping prompt prefixes — system prompts, document chunks, conversation history — are served from cache on subsequent requests. The vendor states 8–10x latency improvements for prompt caching workloads and 4–10x for RAG queries where the same document chunks appear across requests. The compression and streaming techniques described in the backing research (CacheGen, CacheBlend) are what make cache delivery fast enough to beat recomputation. The ceiling appears when your workload has little prompt overlap — unique user queries with no shared prefix — at which point the cache layer adds infrastructure without meaningful savings.

Attribute	AgentRecall	LMCache
Pricing	Paid	Free
Price	$9/month for Pro (cloud); self-hosted is free	—
Free trial	No	No
Open source	No	Yes
Has API	Yes	No
Self-hosted option	Yes	Yes
Platforms	Cloud (hosted API), Self-hosted (Docker/bare metal on user infrastructure)	Cross-platform; integrates with vLLM, TGI, SGLang
Pros	Persistent memory across sessions, so a support or sales agent can reference a customer's prior context without the user having to repeat themselves — which is the difference between an agent that feels useful and one that feels like a fresh chatbot every time. Self-hosted MIT-licensed deployment, so teams with data residency requirements can keep every stored memory inside their own infrastructure without negotiating a custom data agreement. API-first design with JavaScript and Python SDKs, which means the memory layer drops into an existing agent stack without a rewrite — teams avoid building and maintaining a bespoke retrieval system from scratch. Retrieval-at-query-time architecture, so only relevant memories surface per session rather than inflating every prompt with full history — which keeps token costs and latency from compounding as memory volume grows. Claude Desktop integration documented by the vendor, so teams already in that environment get memory persistence without standing up separate infrastructure.	Shared KV cache across serving instances, so you avoid GPU session-affinity routing and can load balance freely without cold-cache penalties on every node switch. KV cache compression via the CacheGen approach, so storage costs for large caches stay bounded — without this, storing full-precision KV tensors for long contexts becomes prohibitively expensive at volume. Native integration with vLLM and TGI, so teams already running those backends add the cache layer without replacing their serving stack. Designed for RAG workloads via the CacheBlend technique, which lets the system combine cached KV entries from different document chunks rather than requiring an exact prefix match — so document-heavy pipelines see cache hits even when queries draw from different combinations of stored passages. Fully open-source under Apache-2.0 with published research papers, so you can inspect the compression and streaming logic, audit it for your compliance requirements, and fork or extend it without vendor lock-in.
Cons	The cloud tier caps at 1,000 stored memories — a solo developer's prototype fits, but a customer support deployment with hundreds of users hits that ceiling within days. Teams either move to the paid-only cloud tier or take on self-hosting, neither of which is free in time or money. Self-hosting transfers all ops responsibility to your team: infrastructure provisioning, uptime, upgrades, and any debugging when retrieval quality degrades. Teams without dedicated DevOps capacity discover this is not a one-afternoon setup. The scraped page content does not confirm a native vector database or specify retrieval ranking logic, which means teams with precision recall requirements — where surfacing the wrong memory is worse than surfacing none — have no documented way to audit or tune retrieval quality before they hit that problem in production. Teams that need memory scoped by user, tenant, or access role in a multi-tenant SaaS product will find no documented isolation model in available sources. When that requirement surfaces mid-build, the path forward is custom middleware or a competitor that ships tenant-aware memory out of the box.	On workloads where prompt overlap is low — unique queries, varied instructions, one-shot tasks — cache hit rates fall close to zero, and you are running a distributed caching system that adds latency on misses without providing the offsetting speedup; teams in this situation remove the layer rather than tune it. LMCache has no API and requires direct integration into a vLLM or TGI deployment, so teams running other inference backends (Triton, custom serving, managed endpoints) face a porting effort the docs do not cover — at that point, teams typically stay with whatever per-request caching their serving engine natively offers. Cache invalidation for dynamic content — documents that change, system prompts that update, user context that shifts — requires manual invalidation logic that the library does not automate; teams building products where source documents update frequently report building their own staleness-tracking layer on top.

Bottom line

AgentRecall is paid while LMCache is free; LMCache is open source; only AgentRecall exposes a public API. Choose based on which difference matters most for your workflow.

Frequently asked questions

What is the difference between AgentRecall and LMCache?

AgentRecall is Paid, while LMCache is Free and open source. Compare pricing, free trial, API, platforms, and pros/cons in the table above on AIDiveForge.

Is AgentRecall better than LMCache?

It depends on your workflow. Use the side-by-side attributes (pricing, open source, API, self-hosted, platforms) to decide. AIDiveForge does not rank a universal winner — we publish verified facts so you can choose.