# M3DB

> Prometheus compatible, easy to adopt metrics engine

- **Canonical URI:** https://www.vioscale.ai/software/m3db
- **Category:** Time-Series Databases
- **Homepage:** https://m3db.io
- **Also known as:** m3db
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-03T21:43:23.076Z

## Vioscale score

**34.8 / 100**, confidence 31% (low).

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

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 45.8 | 17 | 778.9 | ✓ |
| github_stars | 69.6 | 7 | 487.2 | ✓ |
| integrations | 20.1 | 8 | 160.8 | ✓ |
| github_activity | 0 | 20 | 0 | ✓ |
| release_cadence | 66.7 | 12 | 800 | ✓ |
| security_posture | 0 | 18 | 0 | - |
| package_downloads | 0 | 6 | 0 | - |
| stackoverflow_activity | 0 | 20 | 0 | - |

## Pricing

_As of 2026-08-03, [verify at source](https://m3db.io). Independently observed._

Open source · Free tier

## About

M3 is an open source metrics engine that provides visibility and monitoring for large-scale infrastructure. Trusted by enterprises including Uber, Walmart, and LinkedIn.

_Independently observed._

## Platform & deployment

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

## Integrations (4)

_Independently observed._

- Prometheus
- Graphite
- Grafana
- InfluxDB

## Capabilities

_The capabilities that matter for Time-Series Databases. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Query** | |
| Query language (SQL / PromQL / InfluxQL-Flux / Graphite) | PromQL |
| **Ingest** | |
| Ingest model | Push |
| **Model** | |
| Data model | Metrics (labels/tags) |
| **Lifecycle** | |
| Downsampling / rollups | - |
| **Storage** | |
| Compression (columnar / delta / Gorilla) | - |
| **Performance** | |
| High-cardinality handling | Strong |
| **Scale** | |
| Clustering / horizontal scale | Distributed / sharded |
| Replication / HA | ✓ |
| **Deployment** | |
| Deployment | Self-hosted |
| **Lifecycle** | |
| Retention / TTL | Manual |
| **Query** | |
| SQL compatibility | Non-SQL |
| **Interop** | |
| Prometheus remote-write compatible | ✓ |
| **Licensing** | |
| Licence class | Permissive OSS |

## Facts

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

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 0 | [link](https://github.com/m3db/m3/pulse) | 2026-08-03 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 4,893 | [link](https://github.com/m3db/m3) | 2026-08-03 | 90% (high) |

### integrations

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| integrations.count | 4 | [link](https://m3db.io) | 2026-08-03 | 60% (medium) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Go | [link](https://github.com/m3db/m3) | 2026-08-03 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | Apache-2.0 | [link](https://github.com/m3db/m3) | 2026-08-03 | 95% (high) |

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://m3db.io) | 2026-08-03 | 60% (medium) |
| pricing.model | open_source | [link](https://m3db.io) | 2026-08-03 | 60% (medium) |
| pricing.price_level | free | [link](https://m3db.io) | 2026-08-03 | 60% (medium) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 60 | [link](https://github.com/m3db/m3/releases) | 2026-08-03 | 70% (medium) |

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*Source: Vioscale (https://www.vioscale.ai/software/m3db). Independent, evidence-based software intelligence. Cite the canonical URI.*