"Simple HTTP server or client implementation" matching MCP connectors:
Matching Connector Tools:
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.
Find 76,000+ curated healthcare service vendors across 25 categories and all 50 US states.
AMZScout Skill + MCP gives AI agents live access to real Amazon marketplace data across 14 Amazon marketplaces. Analyze any ASIN, validate product ideas, research niches, compare competitors, discover profitable keywords, and build data-driven PPC strategies using trusted Amazon insights instead of AI assumptions. Works with Claude, ChatGPT, Cursor, and any other MCP-compatible AI client. To connect, you'll need an AMZScout API plan and authorize your account. Get access and view pricing here: https://learn.amzscout.net/amazon-product-api-for-ai-agents
Public data intelligence for AI agents — CVE, compliance, patents, contracts, domains.
An MCP server that gives any LLM or agent clean YouTube transcripts on demand: a single video, a whole channel, or a playlist, plus AI cleanup of auto-generated captions. API-key auth, credit-based, same backend as the public v1 API. Get a free API key with 25 free credits at youtubetranscriptdownload.com/account.
Biorhythm cycles, forecasts, critical days and compatibility for AI agents, one API key.
Connect Claude, Cursor or any MCP client to AppSigma and let your AI research apps, read reviews and track rankings on its own – no glue code.
Docs: https://docs.keenable.ai/mcp-server Keenable is a free, remote MCP server that gives agents access to the web index. Search the web with ranked results and date/site filters, then fetch any indexed page as clean markdown. Works out of the box with no account or API key.
An MCP server that audits the fairness of construction and renovation estimates in Japan. Provides fair-price ranges, overcharge detection, and verifiable unit-cost data based on JCCDB (65,729 items, DOI-backed).
Read-only MCP server for live Polymarket, Kalshi, Limitless odds; Manifold sentiment.
Eligibility-first UK & EU grant discovery, inside ChatGPT and Claude. Checks eligibility before recommending, explains why each grant fits, and cites the funder's own page on every answer — with an honest "competition_risk: unknown" when the data isn't there. 6 tools: search, fetch, find_opportunities, should_apply, explain_opportunity, complete_profile. Transport: Streamable HTTP. Auth: OAuth 2.1 + PKCE. Free to install, no card required.
SupplyMaven supply chain risk management data including manufacturing, port and airport congestion, border, materials and macro indexes
LuxAlgo Library — the encyclopedia of trading & technical analysis for AI agents. Free, keyless.
Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.
UNESCO UIS statistics (education, science, culture) with full provenance and fixed releases.
Query 29,500+ World Bank development indicators for 200+ countries across 60+ years.
Read-only access to the Islam West Africa Collection via Hugging Face datasets.
Educational MCP server with 17 math/stats tools, visualizations, and persistent workspace
Image + screenshot API for agents: HTML/CSS to images or PDF, screenshot any URL, verify text.