Llongterm: Stores human-readable user profiles and context easily via API, but lacks supermemory's advanced vector-graph indexing engine. Llongterm records 0 monthly visits with 0% month-over-month growth and Freemium, Paid pricing. supermemory records 156,579 monthly visits with -7.7% growth and Contact for Pricing pricing.
Persistent, human-readable long-term memory for AI apps and agents.
A memory and continual-learning engine that gives any AI agent persistent context
| Dimension / Metric | | |
|---|---|---|
| Official Domain | llongterm.com | supermemory.ai |
| Pricing Model | Freemium, Paid | Contact for Pricing |
| Monthly Visits | 0 (0) | 156.58K (156,579) |
| MoM Traffic Delta | 0 (0%) | -12.98K (-7.7%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (46.2%) |
| Direct Visits / mo | 0 | 71.16K |
| User Rating | 4.2 | 4.5 |
| Supported Platforms | Website | Website |
Persistent, human-readable long-term memory for AI apps and agents.
Store and recall user details across sessions so an assistant remembers preferences, history and context.
Memories are stored with named keys and nested structure, so you can read and audit exactly what is retained.
A JavaScript SDK plus Python on the way, with a sandbox so you can try the flow before integrating.
Llongterm sits between your app and any chatbot or agent, including assistants, support bots and analysis workflows.
A memory and continual-learning engine that gives any AI agent persistent context
A dedicated model extracts, merges, infers and forgets across stored context so the memory graph keeps improving instead of simply accumulating.
Learnings link to the entities, sources and moments around them, storing not just content but a time-aware map of how facts relate.
Memory lives outside model providers and is used through APIs, SDKs, plugins and MCP, so context carries across models and tools.
Relevant memories are injected as tokens into the prompt at request time, giving agents relevant context without unbounded transcripts.
Free / Open-sourceA free, open-source personal AI agent that learns your projects and works across every messaging app.
Free / Open-sourceA free, open-source personal AI agent that learns your projects and works across every messaging app.
SpecialistFocuses on tool integrations and authentication for agents, complementing memory engines rather than storing cross-session context.
SpecialistFocuses on tool integrations and authentication for agents, complementing memory engines rather than storing cross-session context.
Free / Open-sourceOne open-source AI gateway for 100+ LLM providers
SpecialistThe universal context engine connecting agents to data, tools, and models
SpecialistOffers enterprise-grade scalable vector search and RAG storage, but lacks supermemory's automated agent memory graph abstractions.
SpecialistAI gateway, observability and guardrails for production LLM apps
Free / Open-sourceProvides open-source persistent user modelling for stateful agents, but focuses more on conversational psychology than universal vector graphs.
One key, one schema, 6,000+ APIs for your AI agents
Free / Open-sourceProvides high-performance open-source vector similarity search, requiring custom schema design for agent memory management.
Free / Open-sourceProvides high-performance open-source vector similarity search, requiring custom schema design for agent memory management.
Free / Open-sourceDelivers robust open-source graph storage on object stores, but is a database rather than a turnkey agent memory API.
Free / Open-sourceDelivers robust open-source graph storage on object stores, but is a database rather than a turnkey agent memory API.
Free / Open-sourceOffers an open-source memory OS for AI agents, but requires more self-hosting and setup than supermemory's managed API.
Free / Open-sourceOffers an open-source memory OS for AI agents, but requires more self-hosting and setup than supermemory's managed API.
SpecialistThe relevance engine with a built-in feedback loop
