# Recall MCP server

> Provides AI agents with persistent memory and state that survives process crashes and conversation history.

- Repository: https://github.com/Polign/recall
- Page: https://hostedmcp.org/servers/polign/recall
- Transport: —
- Stars: 16
- License: Apache-2.0
- Latest version: 0.25.0

## Environment variables

| Name | Required | Secret | Description |
|---|---|---|---|
| `RECALL_BACKEND` | no | no |  |

## FAQ

### How does Recall handle corrections to information?

Every change is kept as a record rather than an overwrite, allowing agents to see what was believed before and why it changed.

### Can an agent resume its work after a crash?

Yes, Recall stores working state, progress, and unfinished tool calls so an agent can resume from its own records.

### What databases can Recall use for storage?

Recall supports local storage, polign_db, PostgreSQL (with pgvector), MongoDB, and Qdrant.

### Do I need an API key to start using Recall?

No, you can start without a model or an API key using a local database.