# DeepSeek Web Search (npm · mcp-deepseek-search)

MCP server for DeepSeek web Search & Fetch: scored web search + page-to-Markdown fetch

- Trust score: 71/100 (medium)
- Change this week: +6
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- npm · `mcp-deepseek-search`: 71/100 (this document), [markdown](https://verifymcp.io/servers/matthewyin-deepseek-mcp/mcp-deepseek-search.md), [page](https://verifymcp.io/servers/matthewyin-deepseek-mcp/mcp-deepseek-search)

## Channel facts

- Registry: `npm`
- Package: `mcp-deepseek-search`
- Version: `1.0.1`
- 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 2026-11-05.

- **Supply Chain Security**: 81/100
  - No malware found by supply-chain analysis.
  - CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available.
  - No install/post-install scripts declared.
  - 30 of 93 dependencies flagged as unhealthy.
- **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
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 341 tokens (~170/item across 2 items; 2 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 40/100
  - Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **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 2 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**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the DeepSeek Web Search MCP server?

DeepSeek Web Search runs locally as an npm package, launched with npx -y mcp-deepseek-search. 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 matthewyin-deepseek-mcp -- npx -y mcp-deepseek-search
```

### Cursor

```json
{
  "mcpServers": {
    "matthewyin-deepseek-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-deepseek-search"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "matthewyin-deepseek-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-deepseek-search"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add matthewyin-deepseek-mcp -- npx -y mcp-deepseek-search
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add matthewyin-deepseek-mcp --command npx --arg -y --arg mcp-deepseek-search
```

### Hermes

```yaml
mcp_servers:
  matthewyin-deepseek-mcp:
    command: "npx"
    args: ["-y", "mcp-deepseek-search"]
```

### Netclaw

```json
{
  "McpServers": {
    "matthewyin-deepseek-mcp": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "mcp-deepseek-search"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add matthewyin-deepseek-mcp -t stdio -c npx -a -y mcp-deepseek-search
```

### Other

```json
{
  "mcpServers": {
    "matthewyin-deepseek-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-deepseek-search"
      ]
    }
  }
}
```

## 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.

### 2026-11-05 (score 71, +6)

- [functional improvement] Stability: unverified → 0.40

### 2026-10-25 (score 65, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-24 (score 50)

First indexed and scored.

## MCP tools (2)

### `deepseek_search` (~267 tokens)

DeepSeek Web Search

Web search powered by DeepSeek's search engine. Returns ranked results with two quality signals: rerank_score (0-3; >=1.5 means highly relevant) and authority (0-4; >=3 means highly authoritative source, -1 unknown). Query syntax: site: (limit to site), -site: (exclude site), -term (exclude word), "exact phrase", -"phrase" (exclude phrase), lang:zh,en (limit languages), after:YYYY or after:YYYY-MM-DD, before:YYYY-MM-DD. By default returns summaries only; set need_content=true to include full page text (larger response).

Input parameters:

- `count` (integer): Number of results to return, 1-50. Default 10.
- `localization` (string): User IP address used to localize results. Only pass it when appropriate and with consent.
- `need_content` (boolean): Include full page content per result (truncated at 8000 chars each). Default false.
- `ori_question` (string): The user's original question, if the query was rewritten. Improves intent understanding.
- `query` (string, required): Search query, 1-128 Unicode chars. Supports site:, lang:, after:/before:, "phrases" and -exclusions.

### `deepseek_fetch` (~74 tokens)

DeepSeek Web Fetch

Fetch a single web page and return its main content converted to Markdown (truncated at 30000 chars). Use after deepseek_search to read a specific result URL in full. Plain http/https URLs only; result availability depends on the target site's access policy.

Input parameters:

- `url` (string, required): The page URL to fetch.

## Diagnostics

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

## Score history

- 2026-11-05: 71
- 2026-11-04: 65
- 2026-11-03: 65
- 2026-11-02: 65
- 2026-11-01: 65
- 2026-10-31: 65
- 2026-10-30: 65
- 2026-10-29: 65
- 2026-10-28: 65
- 2026-10-27: 65
- 2026-10-26: 65
- 2026-10-25: 65
- 2026-10-24: 50

## Common questions

### What is the DeepSeek Web Search MCP server?

DeepSeek Web Search is an MCP server listed in the public MCP registry as io.github.Matthewyin/deepseek-mcp. MCP server for DeepSeek web Search & Fetch: scored web search + page-to-Markdown fetch. This page covers its npm package (mcp-deepseek-search).

### Is the DeepSeek Web Search MCP server safe to use?

DeepSeek Web Search scores 71 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 5 November 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 DeepSeek Web Search MCP server expose?

DeepSeek Web Search exposes 2 tools: deepseek_search, deepseek_fetch. Their descriptions and schemas cost roughly 341 tokens of context every time the server is loaded.

### Is the DeepSeek Web Search MCP server still maintained?

DeepSeek Web Search is still listed as active in the MCP registry. We last reached this channel on 5 November 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 DeepSeek Web Search MCP server under?

DeepSeek Web Search 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-deepseek-search
- Socket report: https://socket.dev/npm/package/mcp-deepseek-search
- Repository: https://github.com/Matthewyin/deepseek-mcp
- Changelog RSS feed: https://verifymcp.io/servers/matthewyin-deepseek-mcp/mcp-deepseek-search.xml
- Changelog JSON feed: https://verifymcp.io/servers/matthewyin-deepseek-mcp/mcp-deepseek-search.json
- HTML version of this page: https://verifymcp.io/servers/matthewyin-deepseek-mcp/mcp-deepseek-search