Skip to content
Letta Docs
Search
Ctrl
K
Cancel
Auto
Light
Dark
Sign up
Letta Code
Agent SDK
0
Get started
Overview
Quickstart
Constellation
Pricing
Using Letta Code
Desktop App
CLI
Web and mobile
Features
Memory and dreaming
Skills
Channels
Overview
Slack
Telegram
Discord
WhatsApp
Signal
Custom channels
Schedules (crons)
Remote environments
Secrets
Subagents
Goal mode
Configuration
Models
Permissions
Hooks
Mods (extensions)
Automation
Headless mode
GitHub Action
App Server
Overview
Quickstart
Protocol lifecycle
External tools
Integration patterns
Reference
Local mode
Settings
CLI reference
Slash commands
Changelog
1
Letta Agent SDK
Overview
Quickstart
Deployment
SDK reference
Remote client API
Overview
API reference
Self-hosted remotes
Migrate Claude Agent SDK
V1 SDK (legacy)
Overview
Models
Concepts
Stateful agents
Messages
Message types
Streaming
Image inputs
Structured outputs
Long-running executions
Compaction
Conversations
Memory
Memory blocks
Shared memory
Archival memory
Context hierarchy
Tools
Client tools
Built-in tools
Server tools
Human-in-the-loop
MCP tools
Evals
Letta Evals
Getting started
Core concepts
Core concepts
Suites
Datasets
Targets
Graders
Extractors
Gates
Configuration
Suite YAML reference
Graders
Tool Graders
Rubric Graders
Multi-metric evaluation
Extractors
Built-in extractors
Custom extractors
Advanced
Custom Graders
Multi-turn conversations
CLI reference
CLI commands
Results & metrics
Understanding results
Troubleshooting
Troubleshooting
AgentFile (.af)
API reference
Client SDKs
Client
Overview
Health
Agents
Overview
List
Create
Update
Retrieve
Delete
Export File
Import File
Recompile
Messages
Overview
List
Create
Stream
Cancel
Create Async
Reset
Compact
Schedule
Overview
Create
List
Retrieve
Delete
Blocks
Overview
Retrieve
Update
List
Attach
Detach
Tools
Overview
List
Attach
Detach
Update Approval
Run
Folders
Overview
Attach
Detach
List
Files
Overview
Close All
Open
Close
List
Archives
Overview
Attach
Detach
Passages
Overview
List
Create
Delete
Search
Identities
Overview
Attach
Detach
Tools
Overview
Delete
Retrieve
Update
List
Create
Upsert
Search
Blocks
Overview
List
Create
Update
Delete
Retrieve
Agents
Overview
List
Models
Overview
List
Embeddings
Overview
List
Runs
Overview
List
Retrieve
Messages
Overview
List
Stream
Usage
Overview
Retrieve
Steps
Overview
List
Trace
Overview
Retrieve
Steps
Overview
List
Retrieve
Metrics
Overview
Retrieve
Trace
Overview
Retrieve
Feedback
Overview
Create
Messages
Overview
List
Tags
Overview
List
Messages
Overview
List
Retrieve
Search
Conversations
Overview
Create
List
Retrieve
Update
Delete
Cancel
Recompile
Fork
Messages
Overview
List
Create
Stream
Compact
Environments
Overview
List
Retrieve
Send Message
Access Tokens
Overview
List
Create
Delete
Deprecated
Archives
Overview
Create
List
Update
Retrieve
Delete
Passages
Overview
Create
Create Many
Delete
Folders
Overview
Retrieve
Update
Delete
List
Create
Files
Overview
Upload
List
Retrieve
Delete
Agents
Overview
List
Mcp Servers
Overview
Create
List
Retrieve
Delete
Update
Refresh
Tools
Overview
List
Retrieve
Run
Templates
Overview
Create
Save
Delete
Update
Rollback
Agents
Overview
Create
Passages
Overview
Search
Deprecated
Docker server
Server setup
Model providers
Letta ADE
Filesystem
Letta Code
The memory-first coding agent that remembers and learns
