Happenstance, Inc.
Happenstance searches your professional network using natural language to find the right people. Results surface mutual connections and rank by relationship strength, helping you find the warmest intro path. Deep research anyone to get comprehensive profiles with career history and expertise. Ideal for sales, recruiting, venture capital, and business development.
HUGO FM GAMES
Sing Happy Birthday to anyone, by name, right inside ChatGPT. SING BY NAME: Ask for Happy Birthday for any name. The player sings the song with the name included. OPERA BY NAME: An opera singer performs Happy Birthday with over 100 recorded first names, and a general version for every other name. BIRTHDAY SONGS: Over 30 birthday songs and messages, including Cats, Dogs, Piano, Opera, Silly Song, Leprechaun, Scottish, Pirate, Mermaid, Princess, Fairy, Wizard, Vampire, Ukulele, Barbershop, Beatbox, Cake Monster, Farm Animals and more. COUNTDOWN: Ask for Happy Birthday in 30 seconds, or any time up to 40 minutes, and the player counts down before the song starts. SAVE BIRTHDAYS: Save birthdays by name and date, and the player greets them on the day. SONG ORDER: Choose three songs to play in order for the big moment. The plugin never uses your microphone.
HappyCake
Browse the HappyCake menu of cakes and desserts across cities in Kazakhstan, check availability for a chosen date and store, choose delivery or pickup, and place an order without leaving ChatGPT. You can also view current promotions, check your bonus balance, and track or cancel your orders. Payment is completed on happycake.kz. Add delivery instructions and leave or update a review after receiving your order.
Travelogy Online Private Limited
HappyFares is India's AI-powered flight booking platform, now inside ChatGPT. Ask conversationally Cheap flights Delhi to Bangalore next weekend and get live fares in a rich card UI. Meera AI tells you whether prices will rise or fall, suggests cheaper nearby dates, surfaces alternate airports, and lets you set a price alert in one click. Group fares (7+ pax), refundable filter, and pre-filled booking links to happyfares.in for a seamless checkout. 40 lakh+ travellers trust HappyFares
HappyScribe
Bring your HappyScribe transcripts and meetings into ChatGPT. Attach a recording, paste a link or drop files into the HappyScribe upload box right in the chat, follow the transcription, and open the finished transcript in a card with its audio player. HappyScribe is an AI notetaker and transcription platform. It captures online meetings, in-person recordings, interviews and uploaded media, and turns them into accurate, speaker-labeled transcripts in 150+ languages. What ChatGPT can do with HappyScribe connected: HappyScribe only accesses the workspace you connect. European and GDPR-native.
Dimitri Stefanopoulos
Harbormaster runs in a local Codex task on the computer you want to inspect. It maps listening ports to their processes and projects, flags reservation collisions, records vanished services, and safely stops one explicitly selected process. Hosted ChatGPT cannot access your computer's process table.
HarborRank
HarborRank brings live Google search data and your own Search Console and Google Analytics into the conversation, so you can do SEO by asking. What you can do: Nine guided workflows come with the plugin: an SEO coach for beginners, project setup, keyword research, keyword clustering, competitive landscape, competitor analysis, SEO audit and traffic-drop diagnosis, link prospecting, and local lead teardowns. Who it's for: small business owners, marketers, content writers and SEO freelancers or agencies who want real search data without learning an enterprise SEO suite. Limitations: you need a HarborRank account (sign in when you connect). Search Console and Google Analytics data appear only after you connect those properties in HarborRank, and access is read-only. Some features, such as full backlink profiles and lead teardowns, are not available on every HarborRank plan. Search data comes from DataForSEO and reflects Google at the time of the request.
Hardal
Query and analyze your Hardal data directly in ChatGPT. Explore first-party attribution, conversions, campaigns, sessions, events, and e-commerce performance. Investigate marketing performance, compare channels, identify attribution gaps, and uncover insights across your customer data.
Saul Martí
Uses the real vendored Impeccable workflow. Specialized for production hardening of error states, overflow, internationalization, unusual content, and interface edge cases.
Harmonic AI, Inc
Discover and research startups Search, enrich, and research startups, companies and investors using Harmonic's proprietary data on millions of companies and the people behind them. Get detailed company profiles with funding, location, founders, and network connections. Use natural language to find companies matching specific criteria. Create and manage lists of companies and people. Access your team's network mapping and saved searches. Discover startups earlier, research them faster, and act with confidence—an AI-powered research agent built into your workflow.
Harmonic AI, Inc
Search, enrich, and research startups, companies and investors using Harmonic's proprietary data on millions of companies and the people behind them. Get detailed company profiles with funding, location, founders, and network connections. Use natural language to find companies matching specific criteria. Create and manage lists of companies and people. Access your team's network mapping and saved searches. Discover startups earlier, research them faster, and act with confidence—an AI-powered research agent built into your workflow.
Harness.io
Autonomous software delivery Harness helps users inspect software delivery health, diagnose failed executions, find delivery resources, and perform authorized create, update, delete, and execute actions across their Harness account from ChatGPT.
HasData
Collect public web data using your HasData account. Research Google results, Maps listings and reviews, compare ecommerce products and sellers, inspect public social profiles and YouTube videos, find property and job listings, and compare flights or stays. HasData also retrieves news, search trends, scholarly results and cited search answers. The plugin connects the hosted HasData MCP catalog and includes workflows for selecting the right source, making bounded requests and producing comparisons with source links. Requests use your HasData credits. Available fields depend on the source. It does not access private profiles, edit listings, apply for jobs, book travel, make purchases, send outreach or recover unsaved history.
HATA HUB LLC
Find verified HataHub listings and HataHub Aggregator listings in Ukraine for rent or sale. Search by location, property type, price, currency, and room count. Browse a photo carousel, open public property details, and compare listing locations on an interactive 3D map inside ChatGPT. Continue on HataHub using the listing links. Aggregator listings are labelled separately; identity and ownership are unverified.
Woobox LLC
Build websites and web apps directly with ChatGPT. Hatchable hosts and runs them at a live URL, with a database, user sign-in, file storage, and backend functionality included. Use it for an RSVP page for an event, an inventory or invoicing tool for a small business, or a booking page that takes appointments, then come back to update it, check its logs or deploy a new version. Your app can do more than show pages. It can send email, run jobs on a schedule, make PDFs, use AI to write or summarise text, and search your own documents. All of that comes with the platform, so ChatGPT adds a feature when you ask for it instead of setting up a service first. It can also test what it built and read the error logs before telling you it is finished.
Wordliner GmbH
Hausmann Immobilien Makler is a modern real estate company specializing in Norderstedt, Hamburg, Dresden, and other regions across Eastern Germany. The app provides an intuitive, location-based way to discover, buy, sell, or rent properties. Instead of browsing through long property lists, users can explore available houses, apartments, land plots, and investment properties directly on an interactive map. This makes it easy to understand a property's location, neighborhood, and surrounding infrastructure at a glance, creating a faster and more efficient property search experience. With extensive regional market expertise and innovative digital solutions, Hausmann Immobilien Makler helps buyers, sellers, investors, and renters find the right property throughout Northern and Eastern Germany. Key Benefits Whether you're looking for a condominium in Hamburg, a family home in Norderstedt, an investment property in Dresden, or real estate in one of Eastern Germany's emerging regions, Hausmann Immobilien Makler provides a modern, transparent, and convenient way to explore the regional property market.
Havan.dev
Create a practical festival plan for a household, group, or venue. The planner verifies time-sensitive dates when tools are available, asks about location and tradition, prepares a timeline and checklist, and clearly separates general planning from priest-led or expert-reviewed ritual guidance.
Have I Been Squatted
Have I Been Squatted finds attacker infrastructure while it is being set up. Lookalike domains, mail servers, staging hosts and their certificates often appear before a phishing campaign launches. This plugin brings detection, investigation and response for them into ChatGPT and Codex. Enrich and hunt, for any domain Work your organization's detections Background jobsScans and deeper analyses take longer than a single reply. They start a background job and return straight away; ask for the status later in the conversation to get ranked results. Jobs expire after 24 hours, and each organization runs three at a time. ChangesTools that change your organization's data need an organization admin, and ChatGPT asks you to confirm each one. Takedown cases are reviewed by the Have I Been Squatted operations team before any report reaches a registrar or host. Sending a response changes your own security tools; the monitored domain itself is never blocked. Removing a monitored domain or deleting a rule cannot be undone. Example prompts Access requirements
Havi
Havi is an AI presentation maker. Describe what you need, or paste notes or an outline, and it builds a slide deck with the narrative, layout, and design done for you. Export the finished presentation as a PowerPoint (PPT) file or PDF. What you can ask for What Havi can do Who it is forFounders, sales teams, consultants, teachers, and students who need a presentation fast. How to use LimitsHavi edits presentations it created in the conversation. It does not open existing PowerPoint or Google Slides files.
Binarts s.r.o.
HAVN connects ChatGPT to your real estate workspace.With HAVN, agents and teams can ask ChatGPT for scoped, permission-aware help with properties, open houses, contacts, leads, tasks, media, analytics, and seller reports. ChatGPT can find relevant HAVN records, summarize activity, prepare seller updates, surface property photos and files, and help create or update supported records when you explicitly ask.Access follows your HAVN role and agency permissions, so users only see and act on the data they are allowed to use. You can rotate or revoke MCP access from HAVN Settings at any time. HAVN is built for agents who want fewer scattered notes, cleaner lead capture, better follow-through, and a more organized workflow after every property visit.
Headout Inc.
Headout helps you discover things to do when you travel. Use natural language to explore tours, attractions, and activities across cities around the world. Search by destination, interest, traveler type, or specific landmarks to find experiences that match what you’re looking for. With Headout, you can: This app focuses on discovery and planning. It helps you explore options, compare experiences, and decide what to do before booking. Whether you have a specific place in mind or just want ideas, Headout makes it easy to explore what’s possible.
Triangle Health, Inc
Health memory helps you save and manage personal health notes directly through ChatGPT. You can create topics, organize information, and keep track of things like symptoms, medications, and questions for your doctor—all in one place. Simply tell ChatGPT what you want to save, and it will securely store it in your health memory account on Triangle Health. You can also ask to retrieve or update your notes whenever you need them. Health memory is designed with privacy and control in mind. You decide what information is shared, and all actions are performed only with your explicit permission. This app is intended solely for personal note-taking and organization. It does not provide medical advice, diagnosis, or treatment recommendations.
OpenAI
Research healthcare questions using trusted public information from official U.S. government sources. Explore biomedical research, scientific literature, and clinical trials; review medication labels, drug identifiers, recalls, shortages, approvals, and medical-device records; look up healthcare providers and facilities; and explore Medicare coverage policies plus curated Part B physician, Part D prescribing, and inpatient hospital payment data. Healthcare Public Data preserves source attribution and data dates, distinguishes reported facts from interpretation, and supports research without accessing personal medical records. ChatGPT can make mistakes and isn't intended for diagnosis or treatment. Consult a doctor for medical advice. CMS Open Payments, Medicaid, hospice, and dialysis data are not exposed by CMS Open Data; use the appropriate official source for those questions.
Wisery Pte. Ltd.
Healthier helps you take practical steps toward better everyday health. Use it to set nutrition targets and explore your everyday habits. Nutrition planning: compare daily calorie, macro and micronutrient targets for weight loss, maintenance, muscle gain or general wellness. Initial options are baseline estimates. Select a plan and enter your profile in the interactive form to personalize it. After reviewing your targets, you can explicitly confirm an export of the plan and profile to the separate Healthier app's onboarding flow. 60-second Healthier check: answer seven questions about nutrition, exercise and recovery. See a starting wellness score, a suggested focus and one practical habit for each area. You can adjust the habits and choose to continue with your plan in the Healthier app. Designed for adults seeking general wellness support. Healthier does not diagnose conditions, prescribe medication, recommend doses or replace a healthcare professional. The ChatGPT plugin does not provide workout programming, food logging, medical-record access or medication purchasing. Continuing in the separate Healthier app requires installing that app.
