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SearXNG

Self-hosted metasearch with a JSON API for research agents

Overview

SearXNG aggregates results from around 270 search engines without personalising or tracking, and its JSON output format is what makes it interesting for content work — a research agent can run search, dedupe, extract and brief without paying per query or getting a profile-shaped SERP. One caveat decides whether it is usable for you: JSON is off by default. The shipped settings.yml enables only HTML output, most public instances return 403 for format=json, and turning it on means self-hosting and editing config. It has no company behind it and ships no AI of its own; several third-party MCP servers exist but none are official.

Key Features

  • Metasearch across roughly 270 engines with no tracking
  • Documented JSON search API for LLM research pipelines
  • Self-hosted, so no per-query cost or rate-limit billing
  • Community third-party MCP servers available (none official)
  • AGPL-3.0 licensed, volunteer-maintained