Developer Guide API Reference Examples

Developer Guide API Reference Examples

API Reference
agents
models
- GETList LLM Models
- GETList Embedding Models
blocks
identities
tools
folders
jobs
runs
steps
groups
providers
Tags
- GETList Tags
Batches
voice
- POSTCreate Voice Chat Completions
health
- GETCheck Health
projects
- GETList Projects (Cloud-only)
templates
Client Side Access Tokens
telemetry
- GETRetrieve Provider Trace
sources
archives
Chat
mcp-servers

Check Health

GET

/v1/health/

GET

/v1/health/

1 import { LettaClient } from "@letta-ai/letta-client";
2 
3 const client = new LettaClient({ token: "YOUR_TOKEN", project: "YOUR_PROJECT" });
4 await client.health.check();

200Retrieved

1 {
2   "version": "string",
3   "status": "string"
4 }

Async health check endpoint.

Authentication

AuthorizationBearer

Header authentication of the form Bearer <token>

Response

Successful Response

versionstring

statusstring

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List Projects (Cloud-only)