DeepSeek Web Search
NPM · MCP-DEEPSEEK-SEARCH
MCP server for DeepSeek web Search & Fetch: scored web search + page-to-Markdown fetch
Available components
Last scanned (8 hours ago)
Scores higher than 40% of npm servers
Category Search and Retrieval
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. How we score → Why this is hard to score →
Supply Chain Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 11 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability77
- AI-judged instruction clarity (excellent).Pass
- 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. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management40
- Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 2 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 5 Nov 26 +6
- Stability: unverified → 0.40 ▲ functional
- 25 Oct 26 +15
- Malware scan: unverified → pass ▲ security
- 24 Oct 26 50
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Analysed npm/mcp-deepseek-search@1.0.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
deepseek_fetch DeepSeek Web Fetch ~74
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.
| Name | Type | Req | Description |
|---|---|---|---|
| url | string | yes | The page URL to fetch. |
No output schema declared.
No examples provided.
deepseek_search DeepSeek Web Search ~267
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).
| Name | Type | Req | Description |
|---|---|---|---|
| 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 | yes | Search query, 1-128 Unicode chars. Supports site:, lang:, after:/before:, "phrases" and -exclusions. |
No output schema declared.
No examples provided.
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.
npm · mcp-deepseek-search
claude mcp add matthewyin-deepseek-mcp -- npx -y mcp-deepseek-search
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.