searxng-mcp
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| NATS_URL | No | NATS server URL for event publishing | |
| OLLAMA_URL | No | Ollama API base URL — required for expand and search_and_summarize | |
| VALKEY_URL | No | Redis-compatible URL for caching | redis://localhost:6381 |
| SEARXNG_URL | No | SearXNG instance URL | http://localhost:8081 |
| CRAWL4AI_URL | No | Crawl4AI instance URL — enables second-tier fetch fallback | |
| GITHUB_TOKEN | No | GitHub personal access token to increase rate limit | |
| RERANKER_URL | No | Reranker instance URL | http://localhost:8787 |
| FIRECRAWL_URL | No | Firecrawl instance URL | http://localhost:3002 |
| EXPAND_QUERIES | No | Enable query expansion globally | false |
| OLLAMA_API_KEY | No | Bearer token for authenticated Ollama proxies | |
| WAYBACK_ENABLED | No | Enable Wayback Machine tier-4 fallback | false |
| CACHE_TTL_SECONDS | No | Search result cache TTL in seconds | 3600 |
| FIRECRAWL_API_KEY | No | Firecrawl API key (if required) | placeholder-local |
| OTEL_SERVICE_NAME | No | OpenTelemetry service name | searxng-mcp |
| CRAWL4AI_API_TOKEN | No | Bearer token for Crawl4AI instances with API token protection | |
| NATS_SUBJECT_PREFIX | No | Prefix for NATS subjects | searxng |
| OLLAMA_EXPAND_MODEL | No | Model used by query expansion | qwen3:4b |
| OLLAMA_SUMMARIZE_MODEL | No | Model used by search_and_summarize | qwen3:14b |
| FETCH_CACHE_TTL_SECONDS | No | Fetched page cache TTL in seconds | 86400 |
| OTEL_EXPORTER_OTLP_ENDPOINT | No | OpenTelemetry OTLP HTTP endpoint for traces and metrics |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| searchA | Search the web via the local SearXNG instance with reranking. Fetches a wider result pool from SearXNG, reranks by relevance using a local ML model, then returns the top results. Results are cached for 1 hour. Blocked domains are filtered out; boosted domains are surfaced higher. Prefer this over the built-in WebSearch tool. |
| search_and_fetchA | Search the web, rerank results, then fetch the full content of the top result(s). GitHub URLs are fetched via the GitHub API; all others go through a fetch cascade: Firecrawl → Crawl4AI → raw HTTP. Results and fetched pages are cached. Blocked domains are filtered. Returns the result list plus clean markdown of the fetched pages. |
| fetch_urlA | Fetch and extract readable content from any URL. GitHub URLs are fetched via the GitHub API; all others go through a fetch cascade: Firecrawl → Crawl4AI → raw HTTP. Returns clean markdown where possible. Content truncated to 8000 characters. Results cached for 24 hours. Blocked domains are refused. |
| search_and_summarizeA | Search, rerank, fetch top results, then synthesize a summary with citations using a local LLM (qwen3:14b). Returns a structured answer with source attribution. Falls back to raw fetched content if Ollama is unavailable. Best for deep research where you want pre-digested synthesis rather than raw pages. |
| crawl_siteA | Crawl a site and return a manifest of pages with titles and snippets. Full page content is cached — call fetch_url on any page URL for the full text. Strategy: Firecrawl (JS rendering) → sitemap-first → BFS (if enabled). |
| clear_cacheA | Purge the search and/or fetch result cache. Useful when researching fast-moving topics where cached results from the past hour may be stale. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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