# dev.openfeature/mcp (npm · @openfeature/mcp)

MCP server providing OpenFeature SDK installation guides and OFREP flag evaluation

- Trust score: 65/100 (medium)
- Change this week: +27
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@openfeature/mcp`: 65/100 (this document), [markdown](https://verifymcp.io/servers/dev-openfeature-mcp/openfeature-mcp.md), [page](https://verifymcp.io/servers/dev-openfeature-mcp/openfeature-mcp)

## Channel facts

- Registry: `npm`
- Package: `@openfeature/mcp`
- Version: `0.0.22`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Supply Chain Security**: 86/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 58/100
  - Repository check failed: no source repository is declared.
  - Cryptographically verified build provenance (signed, bound to open-feature/mcp).
  - License check failed: no license is declared.
  - Actively maintained (last published 82 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 49/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 195 tokens (~97/item across 2 items; 2 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 86/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 57% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add dev-openfeature-mcp -- npx -y @openfeature/mcp
```

### Codex

```bash
codex mcp add dev-openfeature-mcp -- npx -y @openfeature/mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-openfeature-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@openfeature/mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add dev-openfeature-mcp --command npx --arg -y --arg @openfeature/mcp
```

### Hermes

```yaml
mcp_servers:
  dev-openfeature-mcp:
    command: "npx"
    args: ["-y", "@openfeature/mcp"]
```

### Other

```json
{
  "mcpServers": {
    "dev-openfeature-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@openfeature/mcp"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 65, +50)

- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Provenance: unverified → pass
- [security] The attested source repository moved: open-feature/mcp
- [functional regression] License: unverified → fail
- [functional regression] Security disclosure: unverified → fail
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Stability: unverified → 0.27
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Tool coverage: unverified → 100

### 2026-08-02 (score 15, −39)

- [security regression] Provenance: pass → unverified
- [security regression] Install scripts: pass → unverified
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [security] The attested source repository moved: open-feature/mcp
- [functional regression] Tool coverage: 100 → unverified
- [functional regression] Security disclosure: fail → unverified
- [functional regression] Capabilities: pass → unverified
- [functional regression] License: fail → unverified
- [functional regression] Maintenance: pass → unverified
- [functional] First check of Schema quality: unverified

### 2026-08-01 (score 54, −10)

- [security regression] Known CVEs: partial → unverified
- [functional regression] Dependency health: partial → unverified

### 2026-07-31 (score 64, +20)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 44, −30)

- [security regression] Malware scan: pass → unverified
- [security regression] Known CVEs: partial → unverified
- [functional regression] Dependency health: partial → unverified

### 2026-07-29 (score 74, +36)

- [security improvement] Known CVEs: unverified → partial
- [security improvement] Provenance: unverified → pass
- [security improvement] Install scripts: unverified → pass
- [security] The attested source repository moved: open-feature/mcp
- [functional regression] Security disclosure: unverified → fail
- [functional regression] License: unverified → fail
- [functional improvement] Schema quality: unverified → fair
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] Dependency health: unverified → partial

### 2026-07-27 (score 38)

First indexed and scored.

## MCP tools (2)

### `install_openfeature_sdk` (~81 tokens)

Fetch OpenFeature SDK installation instructions, and follow the instructions to install the OpenFeature SDK. If you are installing a provider, also fetches the provider installation instructions. Also includes documentation and examples for using OpenFeature SDK in your application. Choose the technology that matches the application's language/framework.

Input parameters:

- `providers` (array)
- `technology` (string, required)

### `ofrep_flag_eval` (~114 tokens)

Evaluate feature flags using OpenFeature Remote Evaluation Protocol (OFREP).
If flag_key is omitted, performs bulk evaluation.

Input parameters:

- `auth` (object)
- `base_url` (string): Base URL of your OFREP-compatible flag service. Must be set directly or via environment variables or config file.
- `context` (object): Context information for flag evaluation
- `etag` (string): ETag for bulk evaluation
- `flag_key` (string): If provided, calls single flag evaluation, otherwise performs bulk evaluation.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/dev-openfeature-mcp/openfeature-mcp#diagnostics

## Score history

- 2026-08-03: 65
- 2026-08-02: 15
- 2026-08-01: 54
- 2026-07-31: 64
- 2026-07-30: 44
- 2026-07-29: 74
- 2026-07-28: 38
- 2026-07-27: 38

## Links

- npm package: https://www.npmjs.com/package/@openfeature/mcp
- Socket report: https://socket.dev/npm/package/@openfeature/mcp
- Changelog RSS feed: https://verifymcp.io/servers/dev-openfeature-mcp/openfeature-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-openfeature-mcp/openfeature-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/dev-openfeature-mcp/openfeature-mcp