"Web search services that don't require an API key" matching MCP servers:

Enables asynchronous search of recent and full-archive X (Twitter) posts, retrieval of post volume trends, lookup of individual posts, and tracking of API rate limits through the X API v2.

A local MCP server that lets Claude use your Facebook account through the normal website in a real Chrome window, with read-only tools and staged, confirmable write actions.

Read-only X/Twitter research MCP server using xAI's Responses API. Supports OAuth login for X Premium users and falls back to API key authentication.

A Model Context Protocol (MCP) server that empowers LLMs to search across specific social media platforms using the industry's best search engines.

Enables posting, engaging, sending DMs, and reading your own account through the X API v2 with your developer App credentials, while public search remains on Grok's built-in tools.

Enables searching Reddit posts, fetching subreddit content, and retrieving post comments without requiring an API key. It uses public JSON endpoints to provide seamless access to Reddit data for LLM-based applications.

Enables any calling model to search public X content through Grok's native search using an existing local OAuth login, returning summaries, structured posts, source URLs, and search counts while sharing cached and concurrent searches across local terminals.

Enables MCP clients to manage business locations, citations, reviews, posts, and local analytics across dozens of directories, maps, and search engines.

Enables real-time search of X (Twitter) posts, user timelines, and trends using either xAI's Responses API or the official X API v2.

MCP server that enables searching X (Twitter) via the X API v2, with tools, security model, and install documentation.

Enables Grok native web search, X (Twitter) search, and Jina Reader web page fetching as read-only MCP tools.

Enables MCP agents to perform native X (Twitter) searches with original-post citations and transparent usage tracking. Supports existing Grok login sessions or explicit xAI API billing without runtime dependencies.

Provides read-only access to X (Twitter) search via xAI's Responses API, returning Grok-generated answers with citations from posts, profiles, and threads.

An MCP server that provides real-time web search and X (Twitter) search capabilities via the xAI API.

MCP server providing X/Twitter and Reddit search tools for AI agents, returning raw social media data with cleaning and re-ranking, including full Reddit comment tree reading for cost-effective synthesis.

Provides tools for searching LinkedIn profiles and extracting names, URLs, and headlines via Playwright-based web scraping. Supports location and network filters with automatic login and cookie persistence.

Enables searching X (Twitter) posts, discussions, trends, and web content via Grok API using natural language.

Enables searching X (formerly Twitter) using xAI's Responses API with support for filtering by handles, date ranges, and media understanding, returning structured results with citations.

Enables WhatsApp messaging and management through the Evolution API, supporting sending texts, checking numbers, listing contacts and groups, and more.

Provides access to Douyin (TikTok China) API for searching videos, retrieving user profiles, posts, comments, music, challenges, live streams, and hot trends through the Douyin platform.