Mem0 store
Mem0 Long-Term Memory Store
Async-first implementation of :class:BaseStore
that uses the mem0
library
as a managed long-term memory layer. In PyAgenity we treat the graph state as
short-term (ephemeral per run / session) memory and a store implementation as
long-term, durable memory. This module wires Mem0 so that:
astore
/asearch
/ etc. map to Mem0'sadd
,search
,get_all
,update
,delete
.- We maintain a generated UUID (framework memory id) separate from the Mem0 internal id.
- Metadata is enriched to retain memory type, category, timestamps and app scoping.
- The public async methods satisfy the :class:
BaseStore
contract (astore
,abatch_store
,asearch
,aget
,aupdate
,adelete
,aforget_memory
andarelease
).
Design notes:¶
Mem0 (>= 0.2.x / 2025 spec) still exposes synchronous Python APIs. We off-load
blocking calls to a thread executor to keep the interface awaitable. Where Mem0
does not support an operation directly (e.g. fetch by custom memory id) we
fallback to scanning get_all
for the user. For batch insertion we parallelise
Add operations with gather while bounding concurrency (simple semaphore) to
avoid thread explosion.
The store interprets the supplied config
mapping passed to every method as:
{"user_id": str | None, "thread_id": str | None, "app_id": str | None}
.
thread_id
is stored into metadata under agent_id
for backward compatibility
with earlier implementations where agent_id served a similar role.
Prerequisite: install mem0.
pip install mem0ai
create_mem0_store_with_qdrant
for quick Qdrant backing.
Classes:
Name | Description |
---|---|
Mem0Store |
Mem0 implementation of long-term memory. |
Functions:
Name | Description |
---|---|
create_mem0_store |
Factory for a basic Mem0 long-term store. |
create_mem0_store_with_qdrant |
Factory producing a Mem0Store configured for Qdrant backing. |
Attributes:
Name | Type | Description |
---|---|---|
logger |
|
Attributes¶
Classes¶
Mem0Store
¶
Bases: BaseStore
Mem0 implementation of long-term memory.
Primary responsibilities:
* Persist memories (episodic by default) across graph invocations
* Retrieve semantically similar memories to augment state
* Provide CRUD lifecycle aligned with BaseStore
async API
Unlike in-memory state, these memories survive process restarts as they are managed by Mem0's configured vector / persistence layer.
Methods:
Name | Description |
---|---|
__init__ |
|
adelete |
|
aforget_memory |
|
aget |
|
aget_all |
|
arelease |
|
asearch |
|
asetup |
Asynchronous setup method for checkpointer. |
astore |
|
aupdate |
|
delete |
Synchronous wrapper for |
forget_memory |
Delete a memory by for a user or agent. |
generate_framework_id |
|
get |
Synchronous wrapper for |
get_all |
Synchronous wrapper for |
release |
Clean up any resources used by the store (override in subclasses if needed). |
search |
Synchronous wrapper for |
setup |
Synchronous setup method for checkpointer. |
store |
Synchronous wrapper for |
update |
Synchronous wrapper for |
Attributes:
Name | Type | Description |
---|---|---|
app_id |
|
|
config |
|
Source code in pyagenity/store/mem0_store.py
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|
Attributes¶
Functions¶
__init__
¶
__init__(config, app_id=None, **kwargs)
Source code in pyagenity/store/mem0_store.py
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|
adelete
async
¶
adelete(config, memory_id, **kwargs)
Source code in pyagenity/store/mem0_store.py
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|
aforget_memory
async
¶
aforget_memory(config, **kwargs)
Source code in pyagenity/store/mem0_store.py
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|
aget
async
¶
aget(config, memory_id, **kwargs)
Source code in pyagenity/store/mem0_store.py
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|
aget_all
async
¶
aget_all(config, limit=100, **kwargs)
Source code in pyagenity/store/mem0_store.py
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|
arelease
async
¶
arelease()
Source code in pyagenity/store/mem0_store.py
375 376 |
|
asearch
async
¶
asearch(config, query, memory_type=None, category=None, limit=10, score_threshold=None, filters=None, retrieval_strategy=None, distance_metric=None, max_tokens=4000, **kwargs)
Source code in pyagenity/store/mem0_store.py
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|
asetup
async
¶
asetup()
Asynchronous setup method for checkpointer.
Returns:
Name | Type | Description |
---|---|---|
Any |
Any
|
Implementation-defined setup result. |
Source code in pyagenity/store/base_store.py
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|
astore
async
¶
astore(config, content, memory_type=MemoryType.EPISODIC, category='general', metadata=None, **kwargs)
Source code in pyagenity/store/mem0_store.py
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|
aupdate
async
¶
aupdate(config, memory_id, content, metadata=None, **kwargs)
Source code in pyagenity/store/mem0_store.py
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|
delete
¶
delete(config, memory_id, **kwargs)
Synchronous wrapper for adelete
that runs the async implementation.
Source code in pyagenity/store/base_store.py
247 248 249 |
|
forget_memory
¶
forget_memory(config, **kwargs)
Delete a memory by for a user or agent.
Source code in pyagenity/store/base_store.py
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|
generate_framework_id
async
¶
generate_framework_id()
Source code in pyagenity/store/mem0_store.py
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|
get
¶
get(config, memory_id, **kwargs)
Synchronous wrapper for aget
that runs the async implementation.
Source code in pyagenity/store/base_store.py
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|
get_all
¶
get_all(config, limit=100, **kwargs)
Synchronous wrapper for aget
that runs the async implementation.
Source code in pyagenity/store/base_store.py
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|
release
¶
release()
Clean up any resources used by the store (override in subclasses if needed).
Source code in pyagenity/store/base_store.py
274 275 276 |
|
search
¶
search(config, query, memory_type=None, category=None, limit=10, score_threshold=None, filters=None, retrieval_strategy=RetrievalStrategy.SIMILARITY, distance_metric=DistanceMetric.COSINE, max_tokens=4000, **kwargs)
Synchronous wrapper for asearch
that runs the async implementation.
Source code in pyagenity/store/base_store.py
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|
setup
¶
setup()
Synchronous setup method for checkpointer.
Returns:
Name | Type | Description |
---|---|---|
Any |
Any
|
Implementation-defined setup result. |
Source code in pyagenity/store/base_store.py
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|
store
¶
store(config, content, memory_type=MemoryType.EPISODIC, category='general', metadata=None, **kwargs)
Synchronous wrapper for astore
that runs the async implementation.
Source code in pyagenity/store/base_store.py
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|
update
¶
update(config, memory_id, content, metadata=None, **kwargs)
Synchronous wrapper for aupdate
that runs the async implementation.
Source code in pyagenity/store/base_store.py
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|
Functions¶
create_mem0_store
¶
create_mem0_store(config, user_id='default_user', thread_id=None, app_id='pyagenity_app')
Factory for a basic Mem0 long-term store.
Source code in pyagenity/store/mem0_store.py
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|
create_mem0_store_with_qdrant
¶
create_mem0_store_with_qdrant(qdrant_url, qdrant_api_key=None, collection_name='pyagenity_memories', embedding_model='text-embedding-ada-002', llm_model='gpt-4o-mini', app_id='pyagenity_app', **kwargs)
Factory producing a Mem0Store configured for Qdrant backing.
Source code in pyagenity/store/mem0_store.py
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|