# LangMem

- **Canonical URI:** https://www.vioscale.ai/software/langmem
- **Category:** Agent Memory
- **Homepage:** https://github.com/langchain-ai/langmem
- **Also known as:** langmem
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-26T19:33:32.289Z

## Vioscale score

**46.6 / 100**, confidence 31% (low). Computed 2026-09-01.

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| price_level | 100 | 0.052 | 5.2 | ✓ |
| reliability | 0 | 0.073 | 0 | - |
| capabilities | 74.7 | 0.084 | 6.3 | ✓ |
| repo_stars | 60.6 | 0.026 | 1.6 | ✓ |
| integrations | 13.7 | 0.09355555555555557 | 1.3 | ✓ |
| dependent_projects | 0 | 0.063 | 0 | ✓ |
| dev_activity | 22 | 0.094 | 2.1 | ✓ |
| release_cadence | 0 | 0.052 | 0 | - |
| security_posture | 0 | 0.073 | 0 | - |
| package_downloads | 0 | 0.136 | 0 | - |
| security_score | 0 | 0.042 | 0 | - |
| pricing_transparency | 80 | 0.084 | 6.7 | ✓ |
| community_qa_activity | 0 | 0.063 | 0 | - |

## Pricing

_As of 2026-08-21, [verify at source](https://github.com/pricing). Independently observed._

Open source · Free tier

> Free and open source (MIT license)

## Platform & deployment

- **Platforms:** CLI, Web
- **Deployment:** Self-hosted

## Integrations (2)

_Independently observed._

- LangGraph
- GitHub (repository hosting)

## Capabilities

_The capabilities that matter for Agent Memory. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Capabilities** | |
| Architecture model | Open source self hosted |
| Graph based entity relationship extraction | - |
| Automatic context window rolling summarization | - |
| Semantic vs episodic event chronological memory | ✓ |
| Cross session and multi thread user persistence | ✓ |
| Memory conflict resolution and fact updating | ✓ |
| Multi tenant user and agent isolation | - |
| Native langchain and llamaindex memory classes | ✓ |
| Time decay and recency weighted retrieval | - |
| Zero data retention and pii redaction layer | - |
| SOC2 type ii | - |
| Mit or apache permissive oss license | ✓ |
| Pricing model | Free open source |

## Security & compliance


Known vulnerabilities: 0 (0 in the last 12 months) ([source](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=langmem&per_page=100)). A count reflects scale and disclosure, not quality.

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.model | commercial | [link](https://github.com/langchain-ai/langmem) | 2026-08-26 | 40% (low) |
| pricing.free_tier | yes | [link](https://github.com/pricing) | 2026-08-21 | 60% (medium) |
| pricing.price_level | free | [link](https://github.com/pricing) | 2026-08-21 | 60% (medium) |
| pricing.transparent | yes | [link](https://github.com/pricing) | 2026-08-21 | 60% (medium) |

### integrations

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| integrations.count | 2 | [link](https://github.com/pricing) | 2026-08-21 | 60% (medium) |

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 4 | [link](https://github.com/langchain-ai/langmem/pulse) | 2026-08-26 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 1,626 | [link](https://github.com/langchain-ai/langmem) | 2026-08-26 | 90% (high) |
| adoption.dependent_repos | 0 | [link](https://packages.ecosyste.ms/api/v1/packages/lookup?repository_url=https%3A%2F%2Fgithub.com%2Flangchain-ai%2Flangmem) | 2026-08-26 | 85% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Python | [link](https://github.com/langchain-ai/langmem) | 2026-08-26 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | MIT | [link](https://github.com/langchain-ai/langmem) | 2026-08-26 | 95% (high) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=langmem&per_page=100","last_12m":0,"max_severity":null}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=langmem&per_page=100) | 2026-08-26 | 90% (high) |

---
*Source: Vioscale (https://www.vioscale.ai/software/langmem). Independent, evidence-based software intelligence. Cite the canonical URI.*