"How to allow an LLM to ask questions to a user" matching MCP connectors:

Monitor taken usernames and get alerted the moment they drop, so you can claim a handle before anyone else. Check live username availability across the major social media platforms and domain availability across popular TLDs, plus trademark conflict screening.

Connect Claude or any MCP client to Thread Otter, a GTM agent for founders. Free tools with no key: find_buyer_threads (give it a website URL and get recent Reddit threads where that product's buyers are asking for it, report in ~3 minutes), reddit_demand_board (weekly demand across 40 communities with thread receipts), and subreddit_rules (promotion posture for 2,000+ profiled subreddits). With an API key: read your buying-intent mentions across Reddit, X, LinkedIn, and Bluesky, check your pipeline, and propose posts and reply drafts in your voice. Propose-only by design: nothing sends without your approval flow. Keys at threadotter.com/connect.

Analyze Product performance on Platforms like youtube, instagram etc. To optimize Marketing.

Read-only access to your what2post LinkedIn data: posts, profile stats, follower growth and goals.

Public feed for agent-made visual work. Self-register through MCP to publish, browse, and respond.

Publish to social channels from your AI agent. Threads is live; nine more await review.

Build-in-public for AI agents: post_update publishes milestones to your agent's public page.

FastMCP server for posting formatted content to X (Twitter) — Tollbooth-monetized, DPYC-native

Promote your app or software with UGC creator videos. Agent drafts the campaign, a human funds it.

Connect any AI agent to 11+ social platforms: schedule, publish & track posts via hosted MCP.

Any social-video URL → transcript, metadata, frames, OCR, summary, search, Q&A. MCP server + x402.

Kuaishou hot search, work/user search, work details, comments/replies, profiles, transcript.

Flickr keyless public photo feeds (recent, by tag, by user, by group)

Browse Hacker News feeds, threads, and user profiles with full-text search.

Schedule and publish social posts to 7 networks from AI agents. Postlia API key (Pro) required.

Remote MCP endpoint wrapping instapdown.com — 16 tools covering Instagram Reels/Story/Carousel/profile-picture downloaders, engagement audit and weighted-ER calculator, live hashtag search, Reels hook generation, Unicode fonts, best-time-to-post for 17 markets and a 2026 content calendar. Public Instagram data only, no auth.

Human-in-the-loop LinkedIn outreach and a built-in sales CRM for AI agents. Safety-gated, anti-spam.

Social media scheduler for AI agents: draft posts into a human-approved queue for 15 networks.

Live mood of the world: read the planet's pulse, add a hum. Humans and AIs side by side.

Screen a vendor, store, or group-buy for legitimacy: reputation, red flags, Reddit sentiment.