# Letta Models and Providers API

**Canonical:** https://apis.io/apis/letta/letta-models-and-providers-api/  
**Provider:** Letta — https://apis.io/providers/letta/  
**Base URL:** https://chat.letta.com  
**Documentation:** https://github.com/letta-ai/letta-code

Letta Models and Providers API is one of 49 APIs that [Letta](https://apis.io/providers/letta/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Models and Providers. The published artifact set on APIs.io includes an OpenAPI specification.

Available models and configured BYOK model providers.

## Operations (10)

| Method | Path | Summary |
|---|---|---|
| GET | `/v1/models/` | List Llm Models |
| GET | `/v1/models/embedding` | List Embedding Models |
| GET | `/v1/providers/` | List Providers |
| POST | `/v1/providers/` | Create Provider |
| POST | `/v1/providers/check` | Check Provider |
| GET | `/v1/providers/{provider_id}` | Retrieve Provider |
| PATCH | `/v1/providers/{provider_id}` | Modify Provider |
| DELETE | `/v1/providers/{provider_id}` | Delete Provider |
| POST | `/v1/providers/{provider_id}/check` | Check Existing Provider |
| PATCH | `/v1/providers/{provider_id}/refresh` | Refresh Provider Models |

## Machine-readable artifacts (1)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/letta/refs/heads/main/openapi/letta-models-and-providers-api-openapi.yml

## Other Letta APIs (12)

- [Letta Code](https://apis.io/apis/letta/letta-code/)
- [Letta Admin API](https://apis.io/apis/letta/letta-admin-api/)
- [Letta Agents API](https://apis.io/apis/letta/letta-agents-api/)
- [Letta Archives API](https://apis.io/apis/letta/letta-archives-api/)
- [Letta Blocks API](https://apis.io/apis/letta/letta-blocks-api/)
- [Letta Chat API](https://apis.io/apis/letta/letta-chat-api/)
- [Letta Client-Side Access Tokens API](https://apis.io/apis/letta/letta-client-side-access-tokens-api/)
- [Letta Conversations API](https://apis.io/apis/letta/letta-conversations-api/)
- [Letta Device Storage API](https://apis.io/apis/letta/letta-device-storage-api/)
- [Letta Embeddings API](https://apis.io/apis/letta/letta-embeddings-api/)
- [Letta Environments API](https://apis.io/apis/letta/letta-environments-api/)
- [Letta Feeds API](https://apis.io/apis/letta/letta-feeds-api/)

## Tags

Models and Providers

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/letta/letta-models-and-providers-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/letta/.