SearXNG MCP Server

SearXNG MCP server enabling AI agents to perform privacy-respecting web searches via SearXNG — a free, open-source metasearch engine — querying multiple search engines simultaneously, accessing search results without tracking, and integrating privacy-first web search into agent-driven research and information retrieval workflows using self-hosted or public SearXNG instances.

Evaluated Mar 06, 2026 (0d ago) vcurrent
Homepage ↗ Repo ↗ Search searxng search privacy mcp-server self-hosted metasearch open-source
⚙ Agent Friendliness
75
/ 100
Can an agent use this?
🔒 Security
81
/ 100
Is it safe for agents?
⚡ Reliability
69
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
70
Documentation
72
Error Messages
68
Auth Simplicity
95
Rate Limits
75

🔒 Security

TLS Enforcement
82
Auth Strength
82
Scope Granularity
80
Dep. Hygiene
72
Secret Handling
88

No auth. HTTPS for instance. Self-hosted data control. Community MCP. Privacy-first design.

⚡ Reliability

Uptime/SLA
68
Version Stability
72
Breaking Changes
70
Error Recovery
65
AF Security Reliability

Best When

An agent needs privacy-respecting web search without commercial API costs — particularly for self-hosted agent platforms where a local SearXNG instance provides unlimited search.

Avoid When

You need guaranteed uptime SLA, specific commercial search API features, or don't have access to a SearXNG instance.

Use Cases

  • Performing privacy-first web searches from research agents
  • Querying multiple search engines simultaneously from information gathering agents
  • Building search-enabled agents without commercial API costs from frugal agents
  • Self-hosted search infrastructure for enterprise agent platforms
  • Accessing search results without user tracking from privacy-focused agents
  • Federated search across web, images, and news from multi-source research agents

Not For

  • Teams needing guaranteed SLA (self-hosted SearXNG depends on instance reliability)
  • Teams needing Google-specific or Bing-specific features
  • Organizations without ability to self-host or use public SearXNG instances

Interface

REST API
Yes
GraphQL
No
gRPC
No
MCP Server
Yes
SDK
No
Webhooks
No

Authentication

Methods: none
OAuth: No Scopes: No

No authentication required for public SearXNG instances. Self-hosted instances may have optional auth. Just need SearXNG instance URL.

Pricing

Model: free
Free tier: Yes
Requires CC: No

SearXNG is free open source (AGPL). Self-host for unlimited searches. Public instances available free. Community MCP is free open source.

Agent Metadata

Pagination
page
Idempotent
Full
Retry Guidance
Not documented

Known Gotchas

  • SearXNG instance URL must be configured — no default public instance
  • Public SearXNG instances may block automated requests or have downtime
  • Self-hosted instance recommended for reliability and higher rate limits
  • Result quality varies by which search engines are enabled in the SearXNG config
  • Community MCP from individual contributor — SearXNG API is stable
  • JSON output format must be enabled in SearXNG instance settings

Alternatives

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Scores are editorial opinions as of 2026-03-06.

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