# Letta Archival Memory API

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

Letta Archival Memory 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 Archival Memory. The published artifact set on APIs.io includes an OpenAPI specification.

Out-of-context long-term memory archives and passages.

## Operations (9)

| Method | Path | Summary |
|---|---|---|
| POST | `/v1/archives/` | Create Archive |
| GET | `/v1/archives/` | List Archives |
| GET | `/v1/archives/{archive_id}` | Retrieve Archive |
| PATCH | `/v1/archives/{archive_id}` | Modify Archive |
| DELETE | `/v1/archives/{archive_id}` | Delete Archive |
| GET | `/v1/archives/{archive_id}/agents` | List Agents For Archive |
| POST | `/v1/archives/{archive_id}/passages` | Create Passage In Archive |
| POST | `/v1/archives/{archive_id}/passages/batch` | Create Passages In Archive |
| DELETE | `/v1/archives/{archive_id}/passages/{passage_id}` | Delete Passage From Archive |

## Machine-readable artifacts (1)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/letta/refs/heads/main/openapi/letta-archival-memory-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

Archival Memory

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