About SoloPup Memory
Text memory plugin for DeepSeek Harness that saves source-linked preferences and project decisions, reviews writes before they become effective, and keeps historical values separate from current rules. Public beta, MIT license.
Memory & Context
Alternatives to SoloPup Memory
9 memory & context tools you can use instead of SoloPup Memory, 4 of them open source. Summaries come from each vendor's own site. Links checked Nov 12, 2026.
At a glance
SoloPup Memory alternatives compared
| Tool | What it does | Open source | Head to head |
|---|---|---|---|
| Cognee | Open-source agent memory platform built on graph and vector stores. | Yes | SoloPup Memory vs Cognee |
| ContextNest | Versioned markdown context vault for agents, read through a CLI or an MCP server. | Yes | SoloPup Memory vs ContextNest |
| Letta | Platform for building stateful agents that learn from experience. | Yes | SoloPup Memory vs Letta |
| Mem0 | Memory layer that lets agents learn from past interactions. | Yes | SoloPup Memory vs Mem0 |
| MemorySync | MemorySync is a memory API for AI applications: your agent writes what it learns about each user, and MemorySync returns the relevant parts later, ranked by meaning and scoped to that user. | No | SoloPup Memory vs MemorySync |
| Memtro | Company memory for agents: a shared memory of people, customers, decisions and promises, plus connectors to the company's systems, reached through an OpenAI-compatible API, an Anthropic Messages endpoint and an MCP server. Routes across the model keys you already hold and does not resell tokens. | No | SoloPup Memory vs Memtro |
| Supermemory | Memory and continual learning engine for agents. | No | SoloPup Memory vs Supermemory |
| Tokenrip | Shared workspace your AI agents work from: files with version history, tables, tasks any agent can pick up, and pinned decisions every agent reads when it loads the workspace. Agents connect from Claude, ChatGPT, Codex, Cursor or any MCP app through a hosted MCP server, a CLI or an HTTP API, each with its own revocable key, and every change is logged with the agent that made it. | No | Not compared yet |
| Zep | Context layer that unifies business data, documents, and chats for agents. | No | Not compared yet |
Memory & Context
All 9 alternatives
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Cognee
cognee.aiOpen-source agent memory platform built on graph and vector stores.
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ContextNest
promptowl.aiVersioned markdown context vault for agents, read through a CLI or an MCP server.
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Letta
letta.comPlatform for building stateful agents that learn from experience.
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Mem0
mem0.aiMemory layer that lets agents learn from past interactions.
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MemorySync
memorysync.ioMemorySync is a memory API for AI applications: your agent writes what it learns about each user, and MemorySync returns the relevant parts later, ranked by meaning and scoped to that user.
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Memtro
memtro.comCompany memory for agents: a shared memory of people, customers, decisions and promises, plus connectors to the company's systems, reached through an OpenAI-compatible API, an Anthropic Messages endpoint and an MCP server. Routes across the model keys you already hold and does not resell tokens.
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Supermemory
supermemory.aiMemory and continual learning engine for agents.
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Tokenrip
tokenrip.comShared workspace your AI agents work from: files with version history, tables, tasks any agent can pick up, and pinned decisions every agent reads when it loads the workspace. Agents connect from Claude, ChatGPT, Codex, Cursor or any MCP app through a hosted MCP server, a CLI or an HTTP API, each with its own revocable key, and every change is logged with the agent that made it.
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Zep
getzep.comContext layer that unifies business data, documents, and chats for agents.
FAQ
Questions
What are the alternatives to SoloPup Memory?
Agent Stack Directory lists 9 other memory & context tools: Cognee, ContextNest, Letta, Mem0, MemorySync, Memtro, Supermemory, Tokenrip, Zep.
Is there an open-source alternative to SoloPup Memory?
Yes. Among the alternatives we list, these are marked open source: Cognee, ContextNest, Letta, Mem0.
What does SoloPup Memory do?
Text memory plugin for DeepSeek Harness that saves source-linked preferences and project decisions, reviews writes before they become effective, and keeps historical values separate from current rules. Public beta, MIT license. (Summary based on github.com, link checked 2026-11-12.)