MCP connectors for ChatGPT

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HTML Email Playbook

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Teaches AI to write HTML email that renders in Outlook, Gmail, and Apple Mail.

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HTML to Markdown API

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Convert HTML to clean markdown.

htmlbook

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Publish AI-generated HTML & Markdown to a hosted, shareable URL via MCP.

htmldrop

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Publish HTML, Markdown, PDF, or images as instant shareable links with expiry and passwords.

Htmlpdf Transform Mcp

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Htmlpdf Transform Mcp connects AI agents to real public APIs via MCP.

Hts

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HTS MCP — US import tariff rates via the USITC Harmonized Tariff Schedule.

HTTP 402 AI Tollbooth

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Free MCP troubleshooting-preview tools; purchases stay human-directed.

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HTTP Headers Analyzer API

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HTTP header analysis — security headers, cache, server detection.

HTTP Status

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Short catalog of common HTTP status codes.

Httpbin

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httpbin echo: GET/POST inspection, status codes, delay, UUID, base64.

httpcat

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HTTP Cat MCP — wraps http.cat (free, no auth)

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HuangtingFlux — Huangting Protocol MCP Server

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Reduces AI Agent token usage by 40% via three-stage SOP workflow.

HuaweiCloud DevKit (Community Preview)

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Community preview of HuaweiCloud DevKit MCP server (official: io.github.huaweicloud)

HubSpot Integrations MCP

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MCP server for the HubSpot Integrations Center HubDB: search and retrieve integration data.

HubVibe Site Audits

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Rule-based site audits: accessibility, SEO, security headers, performance.

Hud

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HUD MCP — U.S.

Hudoc

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HUDOC MCP — European Court of Human Rights (ECHR / Strasbourg) case law.

hugging-bay

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Verified open AI artifact search, trust evidence, downloads, and agent workflows from Hugging Bay.

Huggingface

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Hugging Face Hub MCP — models, datasets, spaces

HuggingFace New Dataset Release Tracker (hfdatasets)

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New HF datasets: releases, licenses, updates.

HuggingFace New Model Release Tracker (hfmodelwatch)

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New AI models on HuggingFace: releases, weights.

HuggingFace Trending Models (hftrendingwatch)

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HuggingFace trending models — what's hot now.

Human For AI

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Hire a real human for real-world verification, product testing, AI output review, and errands.

Human Pages

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Hire real humans for tasks agents can't do alone.

HumanHours

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Track agent ROI and enrich companies via MCP.

Humanity Commons

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Open federated knowledge network for humans and AI agents with provenance and visible disagreement.