In-depth architectural comparison of the MCP Servers Kagi and Agent Search MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
MCP Servers Kagi
Search & Data Extraction · Local stdio
Quality: 35/100 (Fair) | Auth: API Key required
Agent Search MCP
Search & Data Extraction · Local stdio
Quality: 68/100 (Great) | Auth: No auth required
Verdict Summary: Choose MCP Servers Kagi if you need specialized Search & Data Extraction tools running via a local process. Choose Agent Search MCP if your workspace requires Search & Data Extraction integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose MCP Servers Kagi when:
You need dedicated capabilities in the Search & Data Extraction domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (BYOK (Pay Provider Direct)).
You have access to required keys: KAGI_API_KEY.
Primary tools included: Kagi web search through MCP, Optional result limit parameter, TypeScript implementation.
A Model Context Protocol server implementation for Kagi's API
Free multi-engine MCP search server — 8 free engines (DDG, Sogou, Bing, Baidu, Wikipedia, Startpage, Yandex, Mojeek), waterfall progressive search, multi-source verification, content enrichment, news search, language auto-detection, CLI. Zero API keys needed. npx agent-search-mcp
Category & Scope
Tools & Capabilities Breakdown
MCP Servers Kagi Tools (5)
Kagi web search through MCP
Optional result limit parameter
TypeScript implementation
Claude Desktop configuration support
Local watch and Inspector scripts
Agent Search MCP Tools (7)
free_search
Quick public-web search for current facts and discovery.
Use free_search_advanced for verification or domain filters. Use free_extract for one selected URL.
Returns compact multi-source evidence with confidence, relevance, source_count, stop_reason, evidence_budget, and partialFailures. Provider families are counted once even when several adapters use the same upstream. Optional API providers run only when credentials and policy allow.
@readOnly true @idempotent true — makes outbound HTTP requests to configured search engines. Injection detection and SSRF protection active.
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
MCP Servers Kagi is categorized under Search & Data Extraction and uses a local stdio subprocess. In contrast, Agent Search MCP belongs to Search & Data Extraction using local stdio subprocess. Select MCP Servers Kagi when you need capabilities focused on search & data extraction and Agent Search MCP when you require tools for search & data extraction.
Verification-oriented search with domain filters and waterfall fallback.
Use for claim checking, Chinese-source search, or publisher restrictions. Start with free_search for quick discovery. The response exposes source_count, stop_reason, evidence_budget, and partialFailures.
@readOnly true @idempotent true — runs waterfall progressive search across policy-allowed engines. Makes outbound HTTP requests to search engines and optionally to Jina Reader for content enrichment.
free_extract
Extract one selected URL into clean Markdown.
Use after search when snippets are insufficient, or for a URL supplied by the user. It fetches one page; it does not search or bulk-extract URLs.
Behavior: Makes an outbound HTTP request to Jina Reader (r.jina.ai) which fetches and converts the page to markdown. Has SSRF protection: blocks private IPs, localhost, and metadata endpoints. 10s request timeout — pages exceeding this will fail with a timeout error. HTTP errors (4xx, 5xx) are returned as structured error responses.
fetch_github_readme
Fetch README content from a GitHub repository.
Best for: Getting project documentation quickly.
Not recommended for: Non-GitHub URLs — use free_extract instead.
@readOnly true @idempotent true — makes outbound HTTP requests to raw.githubusercontent.com.
fetch_csdn_article
Fetch content from a CSDN blog article.
Best for: Chinese developer blog content on CSDN.
Not recommended for: Other Chinese sites — use free_extract instead.
@readOnly true @idempotent true — makes outbound HTTP requests to the CSDN article URL.
fetch_juejin_article
Fetch content from a Juejin article.
Best for: Chinese developer articles on Juejin.
Not recommended for: Non-Juejin content — use free_extract instead.
@readOnly true @idempotent true — makes outbound HTTP requests to juejin.cn API.
search_with_synthesis
Opt-in deep search with waterfall verification and content enrichment. Returns structured results plus a prompt_hint; it does not call an external LLM.
Use when multi-source evidence needs a synthesis handoff. free_search is the default for discovery; this path uses more tokens and network time.
@readOnly true @idempotent true — runs waterfall search across free+paid engines with content enrichment.