# mcp-retriever (npm · mcp-retriever)

One MCP server for web search, page extraction, and cited research.

- Trust score: 69/100 (medium)
- Change this week: +30
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-18

## Components

- npm · `mcp-retriever`: 69/100 (this document), [markdown](https://verifymcp.io/servers/keiranhaax-mcp-retriever/mcp-retriever.md), [page](https://verifymcp.io/servers/keiranhaax-mcp-retriever/mcp-retriever)

## Channel facts

- Registry: `npm`
- Package: `mcp-retriever`
- Version: `0.0.24`
- 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 2026-10-18.

- **Supply Chain Security**: 99/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 39 of 149 dependencies flagged as unhealthy (1 deprecated).
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 11 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 77/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 151 tokens (~75/item across 2 items; 1 tools + 1 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 2 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the mcp-retriever server?

mcp-retriever runs locally as an npm package, launched with npx -y mcp-retriever. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add keiranhaax-mcp-retriever -- npx -y mcp-retriever
```

### Cursor

```json
{
  "mcpServers": {
    "keiranhaax-mcp-retriever": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-retriever"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "keiranhaax-mcp-retriever": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-retriever"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add keiranhaax-mcp-retriever -- npx -y mcp-retriever
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add keiranhaax-mcp-retriever --command npx --arg -y --arg mcp-retriever
```

### Hermes

```yaml
mcp_servers:
  keiranhaax-mcp-retriever:
    command: "npx"
    args: ["-y", "mcp-retriever"]
```

### Netclaw

```json
{
  "McpServers": {
    "keiranhaax-mcp-retriever": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "mcp-retriever"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add keiranhaax-mcp-retriever -t stdio -c npx -a -y mcp-retriever
```

### Other

```json
{
  "mcpServers": {
    "keiranhaax-mcp-retriever": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-retriever"
      ]
    }
  }
}
```

## 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.

### 2026-10-15 (score 69, +30)

- [security improvement] Injection markers: unverified → pass
- [security] First check of Judged manipulation: pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional regression] MCP protocol: unverified → fail
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] Schema quality: unverified → 100
- [functional] First check of Schema quality: fail
- [functional] First check of Destructive annotations: pass
- [functional] First check of Schema quality: pass
- [functional] First check of Schema quality: good
- [functional] First check of Tool coverage: 100

### 2026-10-12 (score 39, 0)

- [functional regression] Security disclosure: unverified → fail

### 2026-10-11 (score 39)

First indexed and scored.

## MCP tools (1)

### `result_read` (~139 tokens)

Read up to 12000 UTF-8 bytes by opaque result_id. Follow next_offset and next_byte_offset as byte_offset within that line. Join byte continuations directly, ordinary line pages with LF. Results expir…

Read up to 12000 UTF-8 bytes by opaque result_id. Follow next_offset and next_byte_offset as byte_offset within that line. Join byte continuations directly, ordinary line pages with LF. Results expire or may be evicted.

Input parameters:

- `byte_offset` (integer): UTF-8 byte offset within the selected line; pass next_byte_offset unchanged (default: 0)
- `limit` (integer): Maximum lines to return (default: 200, max: 500)
- `offset` (integer): One-based line offset (default: 1)
- `result_id` (string, required): Opaque result ID returned by an Retriever tool

## Diagnostics

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

## Score history

- 2026-10-18: 69
- 2026-10-17: 69
- 2026-10-16: 69
- 2026-10-15: 69
- 2026-10-14: 39
- 2026-10-13: 39
- 2026-10-12: 39
- 2026-10-11: 39

## Common questions

### What is the mcp-retriever server?

mcp-retriever is listed in the public MCP registry as io.github.keiranhaax/mcp-retriever. One MCP server for web search, page extraction, and cited research. This page covers its npm package (mcp-retriever).

### Is the mcp-retriever server safe to use?

mcp-retriever scores 69 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 18 October 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the mcp-retriever server expose?

mcp-retriever exposes 1 tool: result_read. Their descriptions and schemas cost roughly 139 tokens of context every time the server is loaded.

### Is the mcp-retriever server still maintained?

mcp-retriever is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the mcp-retriever server under?

mcp-retriever declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

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