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---
title: Advanced Memory Operations
description: 'Comprehensive guide to advanced memory operations and features'
icon: "gear"
iconType: "solid"
---
This guide covers advanced memory operations including complex filtering, batch operations, and detailed API usage. If you're just getting started, check out the [Quickstart](/platform/quickstart) first.
## Advanced Memory Creation
### Async Client (Python)
For asynchronous operations in Python, use the AsyncMemoryClient:
```python Python
import os
from mem0 import AsyncMemoryClient
os.environ["MEM0_API_KEY"] = "your-api-key"
client = AsyncMemoryClient()
async def main():
messages = [
{"role": "user", "content": "I'm travelling to SF"}
]
response = await client.add(messages, user_id="john")
print(response)
await main()
```
### Detailed Memory Creation Examples
#### Long-term memory with full context
<CodeGroup>
```python Python
messages = [
{"role": "user", "content": "Hi, I'm Alex. I'm a vegetarian and I'm allergic to nuts."},
{"role": "assistant", "content": "Hello Alex! I've noted that you're a vegetarian and have a nut allergy. I'll keep this in mind for any food-related recommendations or discussions."}
]
client.add(messages, user_id="alex", metadata={"food": "vegan"})
```
```javascript JavaScript
const messages = [
{"role": "user", "content": "Hi, I'm Alex. I'm a vegetarian and I'm allergic to nuts."},
{"role": "assistant", "content": "Hello Alex! I've noted that you're a vegetarian and have a nut allergy. I'll keep this in mind for any food-related recommendations or discussions."}
];
client.add(messages, { user_id: "alex", metadata: { food: "vegan" } })
.then(response => console.log(response))
.catch(error => console.error(error));
```
```bash cURL
curl -X POST "https://api.mem0.ai/v1/memories/" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"messages": [
{"role": "user", "content": "Hi, I'm Alex. I'm a vegetarian and I'm allergic to nuts."},
{"role": "assistant", "content": "Hello Alex! I've noted that you're a vegetarian and have a nut allergy. I'll keep this in mind for any food-related recommendations or discussions."}
],
"user_id": "alex",
"metadata": {
"food": "vegan"
}
}'
```
```json Output
{
"results": [
{
"memory": "Name is Alex",
"event": "ADD"
},
{
"memory": "Is a vegetarian",
"event": "ADD"
},
{
"memory": "Is allergic to nuts",
"event": "ADD"
}
]
}
```
</CodeGroup>
<Note>
When passing `user_id`, memories are primarily created based on user messages, but may be influenced by assistant messages for contextual understanding. For example, in a conversation about food preferences, both the user's stated preferences and their responses to the assistant's questions would form user memories. Similarly, when using `agent_id`, assistant messages are prioritized, but user messages might influence the agent's memories based on context.
**Example:**
```
User: My favorite cuisine is Italian
Assistant: Nice! What about Indian cuisine?
User: Don't like it much since I cannot eat spicy food
Resulting user memories:
memory1 - Likes Italian food
memory2 - Doesn't like Indian food since cannot eat spicy
(memory2 comes from user's response about Indian cuisine)
```
</Note>
<Note>Metadata allows you to store structured information (location, timestamp, user state) with memories. Add it during creation to enable precise filtering and retrieval during searches.</Note>
#### Short-term memory for sessions
<CodeGroup>
```python Python
messages = [
{"role": "user", "content": "I'm planning a trip to Japan next month."},
{"role": "assistant", "content": "That's exciting, Alex! A trip to Japan next month sounds wonderful. Would you like some recommendations for vegetarian-friendly restaurants in Japan?"},
{"role": "user", "content": "Yes, please! Especially in Tokyo."},
{"role": "assistant", "content": "Great! I'll remember that you're interested in vegetarian restaurants in Tokyo for your upcoming trip. I'll prepare a list for you in our next interaction."}
]
client.add(messages, user_id="alex", run_id="trip-planning-2024")
```
```javascript JavaScript
const messages = [
{"role": "user", "content": "I'm planning a trip to Japan next month."},
{"role": "assistant", "content": "That's exciting, Alex! A trip to Japan next month sounds wonderful. Would you like some recommendations for vegetarian-friendly restaurants in Japan?"},
{"role": "user", "content": "Yes, please! Especially in Tokyo."},
{"role": "assistant", "content": "Great! I'll remember that you're interested in vegetarian restaurants in Tokyo for your upcoming trip. I'll prepare a list for you in our next interaction."}
];
client.add(messages, { user_id: "alex", run_id: "trip-planning-2024" })
.then(response => console.log(response))
.catch(error => console.error(error));
```
```bash cURL
curl -X POST "https://api.mem0.ai/v1/memories/" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"messages": [
{"role": "user", "content": "I'm planning a trip to Japan next month."},
{"role": "assistant", "content": "That's exciting, Alex! A trip to Japan next month sounds wonderful. Would you like some recommendations for vegetarian-friendly restaurants in Japan?"},
{"role": "user", "content": "Yes, please! Especially in Tokyo."},
{"role": "assistant", "content": "Great! I'll remember that you're interested in vegetarian restaurants in Tokyo for your upcoming trip. I'll prepare a list for you in our next interaction."}
],
"user_id": "alex",
"run_id": "trip-planning-2024"
}'
```
```json Output
{
"results": [
{
"memory": "Planning a trip to Japan next month",
"event": "ADD"
},
{
"memory": "Interested in vegetarian restaurants in Tokyo",
"event": "ADD"
}
]
}
```
</CodeGroup>
#### Agent memories
<CodeGroup>
```python Python
messages = [
{"role": "system", "content": "You are an AI tutor with a personality. Give yourself a name for the user."},
{"role": "assistant", "content": "Understood. I'm an AI tutor with a personality. My name is Alice."}
]
client.add(messages, agent_id="ai-tutor")
```
```javascript JavaScript
const messages = [
{"role": "system", "content": "You are an AI tutor with a personality. Give yourself a name for the user."},
{"role": "assistant", "content": "Understood. I'm an AI tutor with a personality. My name is Alice."}
];
client.add(messages, { agent_id: "ai-tutor" })
.then(response => console.log(response))
.catch(error => console.error(error));
```
```bash cURL
curl -X POST "https://api.mem0.ai/v1/memories/" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"messages": [
{"role": "system", "content": "You are an AI tutor with a personality. Give yourself a name for the user."},
{"role": "assistant", "content": "Understood. I'm an AI tutor with a personality. My name is Alice."}
],
"agent_id": "ai-tutor"
}'
```
</CodeGroup>
<Note>
The `agent_id` retains memories exclusively based on messages generated by the assistant or those explicitly provided as input to the assistant. Messages outside these criteria are not stored as memory.
</Note>
#### Dual user and agent memories
When you provide both `user_id` and `agent_id`, Mem0 will store memories for both identifiers separately:
- Memories from messages with `"role": "user"` are automatically tagged with the provided `user_id`
- Memories from messages with `"role": "assistant"` are automatically tagged with the provided `agent_id`
- During retrieval, you can provide either `user_id` or `agent_id` to access the respective memories
- You can continuously enrich existing memory collections by adding new memories to the same `user_id` or `agent_id` in subsequent API calls, either together or separately, allowing for progressive memory building over time
- This dual-tagging approach enables personalized experiences for both users and AI agents in your application
<CodeGroup>
```python Python
messages = [
{"role": "user", "content": "I'm travelling to San Francisco"},
{"role": "assistant", "content": "That's great! I'm going to Dubai next month."},
]
client.add(messages=messages, user_id="user1", agent_id="agent1")
```
```javascript JavaScript
const messages = [
{"role": "user", "content": "I'm travelling to San Francisco"},
{"role": "assistant", "content": "That's great! I'm going to Dubai next month."},
]
client.add(messages, { user_id: "user1", agent_id: "agent1" })
.then(response => console.log(response))
.catch(error => console.error(error));
```
```bash cURL
curl -X POST "https://api.mem0.ai/v1/memories/" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"messages": [
{"role": "user", "content": "I'm travelling to San Francisco"},
{"role": "assistant", "content": "That's great! I'm going to Dubai next month."},
],
"user_id": "user1",
"agent_id": "agent1"
}'
```
```json Output
{
"results": [
{
// memory from user1
"id": "c57abfa2-f0ac-48af-896a-21728dbcecee0",
"data": {"memory": "Travelling to San Francisco"},
"event": "ADD"
},
{
// memory from agent1
"id": "0e8c003f-7db7-426a-9fdc-a46f9331a0c2",
"data": {"memory": "Going to Dubai next month"},
"event": "ADD"
}
]
}
```
</CodeGroup>
## Advanced Search Operations
### Search with Custom Filters
Our advanced search allows you to set custom search filters. You can filter by user_id, agent_id, app_id, run_id, created_at, updated_at, categories, and text. The filters support logical operators (AND, OR) and comparison operators (in, gte, lte, gt, lt, ne, contains, icontains, `*`). The wildcard character (`*`) matches everything for a specific field.
Here you need to define `version` as `v2` in the search method.
#### Example 1: Search using user_id and agent_id filters
<CodeGroup>
```python Python
query = "What do you know about me?"
filters = {
"OR":[
{
"user_id":"alex"
},
{
"agent_id":{
"in":[
"travel-assistant",
"customer-support"
]
}
}
]
}
client.search(query, version="v2", filters=filters)
```
```javascript JavaScript
const query = "What do you know about me?";
const filters = {
"OR":[
{
"user_id":"alex"
},
{
"agent_id":{
"in":[
"travel-assistant",
"customer-support"
]
}
}
]
};
client.search(query, { version: "v2", filters })
.then(results => console.log(results))
.catch(error => console.error(error));
```
```bash cURL
curl -X POST "https://api.mem0.ai/v1/memories/search/?version=v2" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"query": "What do you know about me?",
"filters": {
"OR": [
{
"user_id": "alex"
},
{
"agent_id": {
"in": ["travel-assistant", "customer-support"]
}
}
]
}
}'
```
</CodeGroup>
#### Example 2: Search using date filters
<CodeGroup>
```python Python
query = "What do you know about me?"
filters = {
"AND": [
{"created_at": {"gte": "2024-07-20", "lte": "2024-07-10"}},
{"user_id": "alex"}
]
}
client.search(query, version="v2", filters=filters)
```
```javascript JavaScript
const query = "What do you know about me?";
const filters = {
"AND": [
{"created_at": {"gte": "2024-07-20", "lte": "2024-07-10"}},
{"user_id": "alex"}
]
};
client.search(query, { version: "v2", filters })
.then(results => console.log(results))
.catch(error => console.error(error));
```
```bash cURL
curl -X POST "https://api.mem0.ai/v1/memories/search/?version=v2" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"query": "What do you know about me?",
"filters": {
"AND": [
{
"created_at": {
"gte": "2024-07-20",
"lte": "2024-07-10"
}
},
{
"user_id": "alex"
}
]
}
}'
```
</CodeGroup>
#### Example 3: Search using metadata and categories
<CodeGroup>
```python Python
query = "What do you know about me?"
filters = {
"AND": [
{"metadata": {"food": "vegan"}},
{
"categories":{
"contains": "food_preferences"
}
}
]
}
client.search(query, version="v2", filters=filters)
```
```javascript JavaScript
const query = "What do you know about me?";
const filters = {
"AND": [
{"metadata": {"food": "vegan"}},
{
"categories": {
"contains": "food_preferences"
}
}
]
};
client.search(query, { version: "v2", filters })
.then(results => console.log(results))
.catch(error => console.error(error));
```
```bash cURL
curl -X POST "https://api.mem0.ai/v1/memories/search/?version=v2" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"query": "What do you know about me?",
"filters": {
"AND": [
{
"metadata": {
"food": "vegan"
}
},
{
"categories": {
"contains": "food_preferences"
}
}
]
}
}'
```
</CodeGroup>
#### Example 4: Search using NOT filters
<CodeGroup>
```python Python
query = "What do you know about me?"
filters = {
"NOT": [
{
"categories": {
"contains": "food_preferences"
}
}
]
}
client.search(query, version="v2", filters=filters)
```
```javascript JavaScript
const query = "What do you know about me?";
const filters = {
"NOT": [
{
"categories": {
"contains": "food_preferences"
}
}
]
};
client.search(query, { version: "v2", filters })
.then(results => console.log(results))
.catch(error => console.error(error));
```
```bash cURL
curl -X POST "https://api.mem0.ai/v1/memories/search/?version=v2" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"query": "What do you know about me?",
"filters": {
"NOT": [
{
"categories": {
"contains": "food_preferences"
}
}
]
}
}'
```
</CodeGroup>
#### Example 5: Search using wildcard filters
<CodeGroup>
```python Python
query = "What do you know about me?"
filters = {
"AND": [
{
"user_id": "alex"
},
{
"run_id": "*" # Matches all run_ids
}
]
}
client.search(query, version="v2", filters=filters)
```
```javascript JavaScript
const query = "What do you know about me?";
const filters = {
"AND": [
{
"user_id": "alex"
},
{
"run_id": "*" // Matches all run_ids
}
]
};
client.search(query, { version: "v2", filters })
.then(results => console.log(results))
.catch(error => console.error(error));
```
```bash cURL
curl -X POST "https://api.mem0.ai/v1/memories/search/?version=v2" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"query": "What do you know about me?",
"filters": {
"AND": [
{
"user_id": "alex"
},
{
"run_id": "*"
}
]
}
}'
```
</CodeGroup>
## Advanced Retrieval Operations
### Get All Memories with Pagination
<Note> The `get_all` method supports two output formats: `v1.0` (default) and `v1.1`. To use the latest format, which provides more detailed information about each memory operation, set the `output_format` parameter to `v1.1`.</Note>
<Note> We're soon deprecating the default output format for get_all() method, which returned a list. Once the changes are live, paginated response will be the only supported format, with 100 memories per page by default. You can customize this using the `page` and `page_size` parameters.</Note>
#### Get all memories of a user
<CodeGroup>
```python Python
memories = client.get_all(user_id="alex", page=1, page_size=50)
```
```javascript JavaScript
client.getAll({ user_id: "alex", page: 1, page_size: 50 })
.then(memories => console.log(memories))
.catch(error => console.error(error));
```
```bash cURL
curl -X GET "https://api.mem0.ai/v1/memories/?user_id=alex&page=1&page_size=50" \
-H "Authorization: Token your-api-key"
```
```json Output (v1.1)
{
"count": 204,
"next": "https://api.mem0.ai/v1/memories/?user_id=alex&output_format=v1.1&page=2&page_size=50",
"previous": null,
"results": [
{
"id":"f38b689d-6b24-45b7-bced-17fbb4d8bac7",
"memory":"Is a vegetarian and allergic to nuts.",
"agent_id":"travel-assistant",
"hash":"62bc074f56d1f909f1b4c2b639f56f6a",
"metadata":null,
"immutable": false,
"expiration_date": null,
"created_at":"2024-07-25T23:57:00.108347-07:00",
"updated_at":"2024-07-25T23:57:00.108367-07:00",
"categories":null
}
]
}
```
</CodeGroup>
#### Get all memories by categories
You can filter memories by their categories when using get_all:
<CodeGroup>
```python Python
# Get memories with specific categories
memories = client.get_all(user_id="alex", categories=["likes"])
# Get memories with multiple categories
memories = client.get_all(user_id="alex", categories=["likes", "food_preferences"])
# Custom pagination with categories
memories = client.get_all(user_id="alex", categories=["likes"], page=1, page_size=50)
# Get memories with specific keywords
memories = client.get_all(user_id="alex", keywords="to play", page=1, page_size=50)
```
```javascript JavaScript
// Get memories with specific categories
client.getAll({ user_id: "alex", categories: ["likes"] })
.then(memories => console.log(memories))
.catch(error => console.error(error));
// Get memories with multiple categories
client.getAll({ user_id: "alex", categories: ["likes", "food_preferences"] })
.then(memories => console.log(memories))
.catch(error => console.error(error));
// Custom pagination with categories
client.getAll({ user_id: "alex", categories: ["likes"], page: 1, page_size: 50 })
.then(memories => console.log(memories))
.catch(error => console.error(error));
// Get memories with specific keywords
client.getAll({ user_id: "alex", keywords: "to play", page: 1, page_size: 50 })
.then(memories => console.log(memories))
.catch(error => console.error(error));
```
```bash cURL
# Get memories with specific categories
curl -X GET "https://api.mem0.ai/v1/memories/?user_id=alex&categories=likes" \
-H "Authorization: Token your-api-key"
# Get memories with multiple categories
curl -X GET "https://api.mem0.ai/v1/memories/?user_id=alex&categories=likes,food_preferences" \
-H "Authorization: Token your-api-key"
# Custom pagination with categories
curl -X GET "https://api.mem0.ai/v1/memories/?user_id=alex&categories=likes&page=1&page_size=50" \
-H "Authorization: Token your-api-key"
# Get memories with specific keywords
curl -X GET "https://api.mem0.ai/v1/memories/?user_id=alex&keywords=to play&page=1&page_size=50" \
-H "Authorization: Token your-api-key"
```
</CodeGroup>
#### Get all memories using custom filters
Our advanced retrieval allows you to set custom filters when fetching memories. You can filter by user_id, agent_id, app_id, run_id, created_at, updated_at, categories, and keywords. The filters support logical operators (AND, OR) and comparison operators (in, gte, lte, gt, lt, ne, contains, icontains, `*`). The wildcard character (`*`) matches everything for a specific field.
Here you need to define `version` as `v2` in the get_all method.
<CodeGroup>
```python Python
filters = {
"AND":[
{
"user_id":"alex"
},
{
"created_at":{
"gte":"2024-07-01",
"lte":"2024-07-31"
}
},
{
"categories":{
"contains": "food_preferences"
}
}
]
}
# Default (No Pagination)
client.get_all(version="v2", filters=filters)
# Pagination (You can also use the page and page_size parameters)
client.get_all(version="v2", filters=filters, page=1, page_size=50)
```
```javascript JavaScript
const filters = {
"AND":[
{
"user_id":"alex"
},
{
"created_at":{
"gte":"2024-07-01",
"lte":"2024-07-31"
}
},
{
"categories":{
"contains": "food_preferences"
}
}
]
};
// Default (No Pagination)
client.getAll({ version: "v2", filters })
.then(memories => console.log(memories))
.catch(error => console.error(error));
// Pagination (You can also use the page and page_size parameters)
client.getAll({ version: "v2", filters, page: 1, page_size: 50 })
.then(memories => console.log(memories))
.catch(error => console.error(error));
```
```bash cURL
# Default (No Pagination)
curl -X GET "https://api.mem0.ai/v1/memories/?version=v2" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"filters": {
"AND": [
{"user_id":"alex"},
{"created_at":{
"gte":"2024-07-01",
"lte":"2024-07-31"
}},
{"categories":{
"contains": "food_preferences"
}}
]
}
}'
# Pagination (You can also use the page and page_size parameters)
curl -X GET "https://api.mem0.ai/v1/memories/?version=v2&page=1&page_size=50" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"filters": {
"AND": [
{"user_id":"alex"},
{"created_at":{
"gte":"2024-07-01",
"lte":"2024-07-31"
}},
{"categories":{
"contains": "food_preferences"
}}
]
}
}'
```
</CodeGroup>
## Memory Management Operations
### Memory History
Get history of how a memory has changed over time.
<CodeGroup>
```python Python
# Add some message to create history
messages = [{"role": "user", "content": "I recently tried chicken and I loved it. I'm thinking of trying more non-vegetarian dishes.."}]
client.add(messages, user_id="alex")
# Add second message to update history
messages.append({'role': 'user', 'content': 'I turned vegetarian now.'})
client.add(messages, user_id="alex")
# Get history of how memory changed over time
memory_id = "<memory-id-here>"
history = client.history(memory_id)
```
```javascript JavaScript
// Add some message to create history
let messages = [{ role: "user", content: "I recently tried chicken and I loved it. I'm thinking of trying more non-vegetarian dishes.." }];
client.add(messages, { user_id: "alex" })
.then(result => {
// Add second message to update history
messages.push({ role: 'user', content: 'I turned vegetarian now.' });
return client.add(messages, { user_id: "alex" });
})
.then(result => {
// Get history of how memory changed over time
const memoryId = result.id; // Assuming the API returns the memory ID
return client.history(memoryId);
})
.then(history => console.log(history))
.catch(error => console.error(error));
```
```bash cURL
# First, add the initial memory
curl -X POST "https://api.mem0.ai/v1/memories/" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"messages": [{"role": "user", "content": "I recently tried chicken and I loved it. I'm thinking of trying more non-vegetarian dishes.."}],
"user_id": "alex"
}'
# Then, update the memory
curl -X POST "https://api.mem0.ai/v1/memories/" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"messages": [
{"role": "user", "content": "I recently tried chicken and I loved it. I'm thinking of trying more non-vegetarian dishes.."},
{"role": "user", "content": "I turned vegetarian now."}
],
"user_id": "alex"
}'
# Finally, get the history (replace <memory-id-here> with the actual memory ID)
curl -X GET "https://api.mem0.ai/v1/memories/<memory-id-here>/history/" \
-H "Authorization: Token your-api-key"
```
```json Output
[
{
"id":"d6306e85-eaa6-400c-8c2f-ab994a8c4d09",
"memory_id":"b163df0e-ebc8-4098-95df-3f70a733e198",
"input":[
{
"role":"user",
"content":"I recently tried chicken and I loved it. I'm thinking of trying more non-vegetarian dishes.."
},
{
"role":"user",
"content":"I turned vegetarian now."
}
],
"old_memory":"None",
"new_memory":"Turned vegetarian.",
"user_id":"alex",
"event":"ADD",
"metadata":"None",
"created_at":"2024-07-26T01:02:41.737310-07:00",
"updated_at":"2024-07-26T01:02:41.726073-07:00"
}
]
```
</CodeGroup>
### Update Memory
Update a memory with new data. You can update the memory's text, metadata, or both.
<CodeGroup>
```python Python
client.update(
memory_id="<memory-id-here>",
text="I am now a vegetarian.",
metadata={"diet": "vegetarian"}
)
```
```javascript JavaScript
client.update("memory-id-here", { text: "I am now a vegetarian.", metadata: { diet: "vegetarian" } })
.then(result => console.log(result))
.catch(error => console.error(error));
```
```bash cURL
curl -X PUT "https://api.mem0.ai/v1/memories/<memory-id-here>" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"message": "I recently tried chicken and I loved it. I'm thinking of trying more non-vegetarian dishes.."
}'
```
```json Output
{
"id":"c190ab1a-a2f1-4f6f-914a-495e9a16b76e",
"memory":"I recently tried chicken and I loved it. I'm thinking of trying more non-vegetarian dishes..",
"agent_id":"travel-assistant",
"hash":"af1161983e03667063d1abb60e6d5c06",
"metadata":"None",
"created_at":"2024-07-30T22:46:40.455758-07:00",
"updated_at":"2024-07-30T22:48:35.257828-07:00"
}
```
</CodeGroup>
## Batch Operations
### Batch Update Memories
Update multiple memories in a single API call. You can update up to 1000 memories at once.
<CodeGroup>
```python Python
update_memories = [
{
"memory_id": "285ed74b-6e05-4043-b16b-3abd5b533496",
"text": "Watches football"
},
{
"memory_id": "2c9bd859-d1b7-4d33-a6b8-94e0147c4f07",
"text": "Loves to travel"
}
]
response = client.batch_update(update_memories)
print(response)
```
```javascript JavaScript
const updateMemories = [
{
"memory_id": "285ed74b-6e05-4043-b16b-3abd5b533496",
text: "Watches football"
},
{
"memory_id": "2c9bd859-d1b7-4d33-a6b8-94e0147c4f07",
text: "Loves to travel"
}
];
client.batchUpdate(updateMemories)
.then(response => console.log('Batch update response:', response))
.catch(error => console.error(error));
```
```bash cURL
curl -X PUT "https://api.mem0.ai/v1/memories/batch/" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"memories": [
{
"memory_id": "285ed74b-6e05-4043-b16b-3abd5b533496",
"text": "Watches football"
},
{
"memory_id": "2c9bd859-d1b7-4d33-a6b8-94e0147c4f07",
"text": "Loves to travel"
}
]
}'
```
```json Output
{
"message": "Successfully updated 2 memories"
}
```
</CodeGroup>
### Batch Delete Memories
Delete multiple memories in a single API call. You can delete up to 1000 memories at once.
<CodeGroup>
```python Python
delete_memories = [
{"memory_id": "285ed74b-6e05-4043-b16b-3abd5b533496"},
{"memory_id": "2c9bd859-d1b7-4d33-a6b8-94e0147c4f07"}
]
response = client.batch_delete(delete_memories)
print(response)
```
```javascript JavaScript
const deleteMemories = [
{"memory_id": "285ed74b-6e05-4043-b16b-3abd5b533496"},
{"memory_id": "2c9bd859-d1b7-4d33-a6b8-94e0147c4f07"}
];
client.batchDelete(deleteMemories)
.then(response => console.log('Batch delete response:', response))
.catch(error => console.error(error));
```
```bash cURL
curl -X DELETE "https://api.mem0.ai/v1/memories/batch/" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"memory_ids": [
{"memory_id": "285ed74b-6e05-4043-b16b-3abd5b533496"},
{"memory_id": "2c9bd859-d1b7-4d33-a6b8-94e0147c4f07"}
]
}'
```
```json Output
{
"message": "Successfully deleted 2 memories"
}
```
</CodeGroup>
## Entity Management
### Get All Users
Get all users, agents, and runs which have memories associated with them.
<CodeGroup>
```python Python
client.users()
```
```javascript JavaScript
client.users()
.then(users => console.log(users))
.catch(error => console.error(error));
```
```bash cURL
curl -X GET "https://api.mem0.ai/v1/entities/" \
-H "Authorization: Token your-api-key"
```
```json Output
[
{
"id": "1",
"name": "user123",
"created_at": "2024-07-17T16:47:23.899900-07:00",
"updated_at": "2024-07-17T16:47:23.899918-07:00",
"total_memories": 5,
"owner": "alex",
"metadata": {"foo": "bar"},
"type": "user"
},
{
"id": "2",
"name": "travel-agent",
"created_at": "2024-07-01T17:59:08.187250-07:00",
"updated_at": "2024-07-01T17:59:08.187266-07:00",
"total_memories": 10,
"owner": "alex",
"metadata": {"agent_id": "123"},
"type": "agent"
}
]
```
</CodeGroup>
### Delete Operations
Delete specific memory:
<CodeGroup>
```python Python
client.delete(memory_id)
```
```javascript JavaScript
client.delete("memory-id-here")
.then(result => console.log(result))
.catch(error => console.error(error));
```
```bash cURL
curl -X DELETE "https://api.mem0.ai/v1/memories/memory-id-here" \
-H "Authorization: Token your-api-key"
```
</CodeGroup>
Delete all memories of a user:
<CodeGroup>
```python Python
client.delete_all(user_id="alex")
```
```javascript JavaScript
client.deleteAll({ user_id: "alex" })
.then(result => console.log(result))
.catch(error => console.error(error));
```
```bash cURL
curl -X DELETE "https://api.mem0.ai/v1/memories/?user_id=alex" \
-H "Authorization: Token your-api-key"
```
</CodeGroup>
Delete specific user or agent:
<CodeGroup>
```python Python
# Delete specific user
client.delete_users(user_id="alex")
# Delete specific agent
# client.delete_users(agent_id="travel-assistant")
```
```javascript JavaScript
client.delete_users({ user_id: "alex" })
.then(result => console.log(result))
.catch(error => console.error(error));
```
```bash cURL
curl -X DELETE "https://api.mem0.ai/v2/entities/user/alex" \
-H "Authorization: Token your-api-key"
```
</CodeGroup>
### Reset Client
<CodeGroup>
```python Python
client.reset()
```
```json Output
{'message': 'Client reset successful. All users and memories deleted.'}
```
</CodeGroup>
### Natural Language Delete
You can also delete memories using natural language commands:
<CodeGroup>
```python Python
messages = [
{"role": "user", "content": "Delete all of my food preferences"}
]
client.add(messages, user_id="alex")
```
```javascript JavaScript
const messages = [
{"role": "user", "content": "Delete all of my food preferences"}
]
client.add(messages, { user_id: "alex" })
.then(result => console.log(result))
.catch(error => console.error(error));
```
```bash cURL
curl -X POST "https://api.mem0.ai/v1/memories/" \
-H "Authorization: Token your-api-key" \
-H "Content-Type: application/json" \
-d '{
"messages": [{"role": "user", "content": "Delete all of my food preferences"}],
"user_id": "alex"
}'
```
</CodeGroup>
## Monitor Memory Operations
You can monitor memory operations on the platform dashboard:
![Mem0 Platform Activity](/images/platform/activity.png)
For more detailed information, see our [API Reference](/api-reference) or explore specific features in the [Platform Features](/platform/features/platform-overview) section.
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