Formulas HQ

Formulas HQ is an AI-powered formula and script generator for Excel and Sheets. It provides users with a variety of tools to simplify complex calculations, automate tasks, and gain insights from data. The platform includes features such as formula generation, regular expression simplification, VBA and Apps Script automation, and chat-based assistance. Formulas HQ is designed to help users improve their productivity and efficiency when working with spreadsheets.

NuMind is an AI tool designed to solve information extraction tasks efficiently. It offers high-quality lightweight models tailored to users' needs, automating classification, entity recognition, and structured extraction. The tool is powered by task-specific and domain-agnostic foundation models, outperforming GPT-4 and similar models. NuMind provides solutions for various industries such as insurance and healthcare, ensuring privacy, cost-effectiveness, and faster NLP projects.

Formularizer is an AI-powered assistant designed to help users with formula-related tasks in spreadsheets like Excel, Google Sheets, and Notion. It provides step-by-step guidance, formula generation, and explanations to simplify complex formula creation and problem-solving. With support for regular expressions, Excel VBA, and Google Apps Script, Formularizer aims to enhance productivity and make data manipulation more accessible.

Fillout is an AI tool that allows users to create forms, surveys, and quizzes quickly and easily. It offers a wide range of features such as drag-and-drop questions, customizable question types, advanced form creation capabilities, and secure data collection. With integrations with popular platforms like Notion, Airtable, Salesforce, and Google Sheets, Fillout provides a seamless experience for users to collect and manage data efficiently. Trusted by thousands of organizations, Fillout is known for its user-friendly interface, powerful functionalities, and excellent customer support.

LlamaIndex is a framework for building context-augmented Large Language Model (LLM) applications. It provides tools to ingest and process data, implement complex query workflows, and build applications like question-answering chatbots, document understanding systems, and autonomous agents. LlamaIndex enables context augmentation by combining LLMs with private or domain-specific data, offering tools for data connectors, data indexes, engines for natural language access, chat engines, agents, and observability/evaluation integrations. It caters to users of all levels, from beginners to advanced developers, and is available in Python and Typescript.

Pieces is an on-device AI coding assistant that boosts developer productivity by providing contextual understanding of the entire workflow. It offers features like leveraging real-time context, using advanced AI models, applying hyper-relevant context to conversations, deep integrations within tools, air-gapped security, and more. Pieces is designed to simplify coding processes, enhance code generation, and streamline developer workflows.

Bricks is an AI-first spreadsheet application that simplifies the process of creating and sharing reports, presentations, charts, and visuals using your data. It eliminates the need for advanced spreadsheet expertise, allowing users to effortlessly generate various types of content. Bricks offers a wide range of pre-built templates and tools to enhance productivity and creativity in data analysis and visualization.

AllAIs is an AI ecosystem platform that brings together various AI tools, including large language models (LLMs), image generation capabilities, and development plugins, into a unified ecosystem. It aims to enhance productivity by providing a comprehensive suite of tools for both creative and technical tasks. Users can access popular LLMs, generate high-quality images, and streamline their projects using web and Visual Studio Code plugins. The platform offers integration with other tools and services, multiple pricing tiers, and regular updates to ensure high performance and compatibility with new technologies.

Yay! Forms is an AI-powered form and survey builder that leverages artificial intelligence to create personalized surveys, quizzes, and forms. The platform simplifies decision-making by automatically turning data into valuable insights. With features like responsive design, customizable themes, drop-off analysis, advanced logic, and seamless integrations, Yay! Forms offers a user-friendly experience for creating engaging and efficient forms. The application also provides various pricing plans to cater to different user needs, along with a free trial option. Additionally, the platform offers customer support, automatic keyword extraction, sentiment detection, emotion detection, and the ability to remove branding for a more professional look.

Lunary is an AI developer platform designed to bring AI applications to production. It offers a comprehensive set of tools to manage, improve, and protect LLM apps. With features like Logs, Metrics, Prompts, Evaluations, and Threads, Lunary empowers users to monitor and optimize their AI agents effectively. The platform supports tasks such as tracing errors, labeling data for fine-tuning, optimizing costs, running benchmarks, and testing open-source models. Lunary also facilitates collaboration with non-technical teammates through features like A/B testing, versioning, and clean source-code management.

Infermatic.ai is a platform that provides access to top Large Language Models (LLMs) with a user-friendly interface. It offers complete privacy, robust security, and scalability for projects, research, and integrations. Users can test, choose, and scale LLMs according to their content needs or business strategies. The platform eliminates the complexities of infrastructure management, latency issues, version control problems, integration complexities, scalability concerns, and cost management issues. Infermatic.ai is designed to be secure, intuitive, and efficient for users who want to leverage LLMs for various tasks.

Smartling is an AI-enabled translation platform that offers language translation and content localization solutions. It helps companies accurately translate and localize content into any language and media at scale. Smartling's platform is cloud-based with AI-powered content and workflow management, performance dashboards, cost estimating, and a contextual CAT tool. It provides human translation services, Neural Machine Translation, and automated quality checks. The platform simplifies managing multilingual content, automates content ingestion, and optimizes performance with real-time reporting.

Motific.ai is a responsible GenAI tool powered by data at scale. It offers a fully managed service with natural language compliance and security guardrails, an intelligence service, and an enterprise data-powered, end-to-end retrieval augmented generation (RAG) service. Users can rapidly deliver trustworthy GenAI assistants and API endpoints, configure assistants with organization's data, optimize performance, and connect with top GenAI model providers. Motific.ai enables users to create custom knowledge bases, connect to various data sources, and ensure responsible AI practices. It supports English language only and offers insights on usage, time savings, and model optimization.

AIssistify is an all-in-one AI solution that integrates with HubSpot CRM to provide businesses with a range of AI-powered automation and productivity tools. It offers features such as GPT-4 Turbo integration, custom prompts in workflows, diverse AI model options, and more. AIssistify helps businesses streamline their marketing, sales, and RevOps processes by automating tasks, improving communication, and providing valuable insights.

Copilot.us offers a suite of AI-powered productivity apps for businesses and individuals. With a single subscription, users can access dozens of apps designed to enhance productivity in various areas, including PDF management, document conversion, web browsing, content creation, job search, and more. The apps are available as standalone tools, GPTs, and ChatGPT plugins, providing flexibility and seamless integration with existing workflows. Copilot.us aims to simplify tasks, save time, and improve efficiency for its users.

CapSolver is an AI-powered automatic captcha solving service that offers seamless integration with web projects. It provides image recognition and Optical Character Recognition (OCR) solutions through its browser extension and API. CapSolver ensures easy implementation with multiple language support and ready-to-use code examples. The service is trusted by numerous companies for its reliability, flexibility, and customization options. It caters to a wide range of industries, including web testing, social media, market research, SEO, online shopping, online gaming, and financial services. CapSolver advocates for ethical technology use and compliance with regulations to protect user data and privacy.

How2 is an AI tool designed for the Command-Line interface, utilizing AI models to suggest shell commands directly from the Unix Terminal. Users can benefit from up to 5 free queries per day, enabling quick creation of Bash scripts and seamless integration with PowerShell. The tool prioritizes user safety by only proposing options without executing commands, and offers the flexibility to search StackOverflow via Google by adding the -s option.

Triplo AI is an AI-powered assistant designed to enhance productivity by providing real-time assistance, content generation, context-aware translations, and personalized prompts. It supports over 200 languages, integrates with various tools and software, and offers training and automation functionalities. Users can access Triplo AI on Windows, Mac, Linux, Android, iOS, and Chromebook, making it a versatile and powerful tool for researchers, content writers, business professionals, and more.

Thirdai.com is an AI-powered platform that offers a range of tools and applications to enhance productivity and decision-making. The platform leverages advanced algorithms and machine learning to provide insights and solutions across various domains such as finance, marketing, and healthcare. Users can access a suite of AI tools to analyze data, automate tasks, and optimize processes. With a user-friendly interface and robust features, Thirdai.com is a valuable resource for individuals and businesses seeking to leverage AI technology for improved outcomes.

DecodeAI is an experimental concept for an automatic blog about AI, generated by AI and curated by humans. The blog mainly focuses on AI-related GitHub open source repositories but is not limited to that. It offers insights, updates, and discussions on various AI topics to keep readers informed and engaged.

Synthreo is an AI tool that empowers businesses to streamline operations, reduce costs, and drive growth through intelligent AI agents. It provides cutting-edge AI agent solutions that automate routine tasks, enhance decision-making, and create seamless collaboration between human teams and digital labor. Synthreo offers transformative advantages for businesses of all sizes, enabling operational efficiency and strategic growth. The platform implements advanced security measures, complies with industry standards, and upholds ethical AI usage. Businesses can leverage AI-powered digital labor to achieve unprecedented efficiency, innovation, and growth.

AI Intern is an AI-powered application designed to streamline workflows, automate repetitive tasks, and boost team productivity within Slack. It offers features such as workflow efficiency, content creation, AI assistance, code generation, and image creation. AI Intern is trusted by professionals worldwide to simplify work processes, cut costs, and enhance team productivity. Users can easily integrate AI Intern into Slack to receive real-time support and assistance, making workdays simpler, smarter, and more efficient.

Dialpad is an AI-powered customer communications platform designed to help businesses intelligently connect, support, and sell. It offers features such as instant AI summaries for calls, messages, and meetings, next-gen contact center solutions with AI agents, outbound sales calls with real-time AI coaching, insights, and automations, and more. Dialpad is trusted by enterprises worldwide for its unparalleled AI that accelerates work, real-time insights, and unmatched accuracy at scale. The platform is fast, predictable, private, and secure, with user data kept in-house for compliance with privacy regulations.

AI2Page is an advanced AI tool that allows users to easily convert text into structured JSON objects. With its intuitive interface and powerful algorithms, AI2Page simplifies the process of analyzing and extracting information from text data. Users can simply input text, and AI2Page will automatically generate structured JSON output, making it ideal for data extraction, content analysis, and information retrieval tasks. The tool is designed to be user-friendly and efficient, catering to both beginners and experienced users in the field of data analysis and AI applications.

Supernormal is an AI-powered personal assistant application designed for Mac users to streamline meeting notes, prep, and insights. It automatically transcribes and summarizes meetings, identifies next steps, and integrates with various tools. With enterprise-grade security features, Supernormal aims to enhance productivity and collaboration in meetings.

Vee is an intelligent conversational AI tool that serves as a virtual consultant for businesses. It has the capability to handle outgoing calls, client support processes, and various business tasks with efficiency and brilliance. Vee's technology combines artificial intelligence with real-world conversational experience to deliver effective results. The tool is designed to streamline business processes and enhance customer interactions through intelligent automation.

EasySell AI is an AI-powered tool that helps users sell more and stress less by automating the negotiation process on marketplace apps. It filters out lowball offers and only notifies users when they receive an offer that meets their desired price. The tool is designed to save users time and maximize their profits.

Dropy.AI is an AI-powered dropshipping tool designed to revolutionize e-commerce success. It offers a comprehensive suite of features, including AI-assisted store building, product sourcing, social media tools, and competitor analysis. With a focus on efficiency and profitability, Dropy.AI aims to empower entrepreneurs to scale their businesses with ease and stay ahead in the competitive e-commerce landscape.

Figure is a pioneering AI robotics company that is revolutionizing the field by introducing a general-purpose humanoid robot to the market. The company is focused on developing robots that can think for themselves and perform a wide range of tasks autonomously, from household chores to end-to-end operations in various industries. By combining cutting-edge AI technology with the dexterity of the human form, Figure aims to address labor shortages and provide innovative solutions for both home and commercial environments.

Ceacle Tools is an AI-powered platform that offers a wide range of tools for creating effects, mockups, and managing accounts efficiently. It provides access to over 50 tools including AI for audio, images, video, and documents. Users can simplify their workflows by accessing all tools in one place, either through subscription or one-time payment. Ceacle Tools enables users to generate images, try on garments virtually, recolor elements, erase unwanted objects, fill in missing parts, and much more. The platform aims to boost productivity, streamline processes, and provide a unified interface for easy mastering of tools.

ItaGPT is a service that connects ChatGPT and WhatsApp, allowing users to chat with ChatGPT and receive immediate answers to their questions directly on their phone. Users can access the service by sending a message on WhatsApp to ItaGPT, similar to contacting any other contact. ItaGPT can provide information on various topics, suggest recipes, answer math questions, and offer health advice. The service is free for 7 days, with 100 free messages available during this trial period. ItaGPT uses natural and intuitive language to respond to queries, making the user experience simple and straightforward.

Collie.ai is an AI-powered tool designed to assist users in various tasks. It offers a wide range of features and advantages to streamline workflows and improve productivity. The tool is known for its user-friendly interface and efficient performance. Collie.ai is suitable for individuals and businesses looking to leverage AI technology for enhanced decision-making and task automation.

Questflow is a decentralized AI agent economy platform that allows users to orchestrate multiple AI agents to gather insights, take action, and earn rewards autonomously. It serves as a co-pilot for work, helping knowledge workers automate repetitive tasks in a private, safety-first approach. The platform offers features such as multi-agent orchestration, user-friendly dashboard, visual reports, smart keyword generator, content evaluation, SEO goal setting, automated alerts, actionable SEO tips, regular SEO goal setting, and link optimization wizard.

Atlassian Marketplace is a platform that offers a wide range of apps for Atlassian products, aiming to enhance users' experience and productivity. Users can explore and discover various apps tailored to different needs, such as project management, collaboration, and workflow optimization. The marketplace features apps from Atlassian Ventures, Changemakers, and other companies, including AI-powered apps for elevating productivity. With a focus on cloud collaboration, security, and reliability, the marketplace provides a curated assortment of apps to meet organizational needs and drive innovation.

Genji is an AI Browser Assistant that aims to revolutionize the way users interact with their web browsers. By leveraging artificial intelligence, Genji acts as a virtual sidekick, capable of automating various tasks and actions within the browser environment. Users can delegate tasks to Genji using plain language commands, allowing them to focus on more important matters while Genji handles the rest. With features like task automation, voice input commands, and task scheduling, Genji offers a seamless browsing experience for both personal and professional use.

Quantexa News API is an AI-powered news data application that provides efficient, effective, and accurate access to global news at scale. It offers real-time access to enriched, tagged, and structured news feeds, enhancing risk monitoring processes and models. The application aggregates news content from over 90,000 sources and 1.3 million NLP-enriched news articles daily, with advanced AI-powered search capabilities. Users can investigate data through visualizations, automate tasks with entity and sentiment analysis, and easily share news data with relevant stakeholders.

Abbot is a programmable smart assistant designed to enhance customer success by working alongside users in team chat environments. It helps in tracking customer conversations, automating tasks, integrating with various systems, providing insights, and ensuring timely responses. Abbot can be trained on documentation, run custom scripts, summarize conversations, and suggest next steps. It offers security compliance and different pricing plans tailored for teams and enterprises.

Kel is an AI Assistant designed to operate within the Command Line Interface (CLI). It offers users the ability to automate repetitive tasks, boost productivity, and enhance the intelligence and efficiency of their CLI experience. Kel supports multiple Language Model Models (LLMs) including OpenAI, Anthropic, and Ollama. Users can upload files to interact with their artifacts and bring their own API key for integration. The tool is free and open source, allowing for community contributions on GitHub. For support, users can reach out to the Kel team.

PromptInterface.ai is an innovative prompt engineering solution that allows users to create personalized assistants for colleagues using intuitive forms with GPT-4 prompts. It revolutionizes business processes by optimizing collaborative work, boosting productivity, improving communication, and simplifying time-consuming tasks. The application offers clear and transparent pricing, secure payments, and the ability to manage subscriptions easily. With no limit to prompt templates and compatibility with smartphones, PromptInterface.ai is a powerful and user-friendly tool for businesses looking to automate processes and enhance team collaboration.

Monoid is an AI tool that transforms APIs into AI Agents, enhancing the capabilities of Large Language Models (LLMs) by providing context and real-time actions. Users can create customized AI Agents in minutes by selecting a foundational LLM, an Agent Type, and defining Actions controlled by the AI Agent. Monoid enables users to simulate AI Agents using APIs, chat with the Agents, and share Actions on a collaborative platform. The tool caters to various use-cases such as acting as a Shopping Assistant, Customer Support Agent, and Workflow Automator, offering seamless integration and open-source flexibility.

Rationale is a cutting-edge decision-making tool powered by advanced AI technology, including the latest GPT model and in-context learning capabilities. It leverages artificial intelligence to provide users with valuable insights and recommendations for making informed decisions across various domains.

Medallia is a real-time text analytics software that empowers organizations to derive actionable insights from customer interactions. With a focus on omnichannel analytics, Medallia's AI-powered platform enables users to identify emerging trends, prioritize key insights, and drive real-time actions. By leveraging natural language understanding and out-of-the-box topic models, Medallia offers customizable KPIs and scalable text analytics solutions for various industries. The platform aims to transform unstructured data into actionable insights to enhance customer and employee experiences.

Warmy is an AI-driven email deliverability tool designed to revolutionize email warm-up for improved deliverability. It offers free tools, resources, and pricing options to help users fix email deliverability issues. By utilizing state-of-the-art AI-driven automation processes, Warmy prepares domains and IPs for email outreach campaigns, ensuring the highest email deliverability rates. The platform uses sophisticated algorithms to optimize email deliverability and reputation, leading to increased open and click rates across various email platforms like Gmail, Outlook, and Yahoo. Warmy helps emails bypass spam filters, build trust, and drive engagement, ultimately improving visibility and ensuring emails reach recipients' primary inboxes.

ValueProp.Dev is an AI-powered tool designed to help businesses create a Value Proposition Canvas based on their company description. The tool assists in identifying customer jobs, pains, gains, products, services, pain relievers, and gain creators to develop a compelling value proposition that resonates with the target audience. By leveraging AI technology, ValueProp.Dev streamlines the process of value proposition creation, enabling businesses to enhance their offerings and better meet customer needs.

functime is a time-series machine learning tool designed to perform forecasting at scale. It provides functions for scoring, ranking, and plotting thousands of forecasts simultaneously. With a focus on guiding users through their first end-to-end forecasting pipeline, functime serves as an AI copilot to analyze trends, seasonality, and causal factors in forecasts. The tool offers a comprehensive API reference and documentation, making it a valuable resource for both beginners and experienced analysts.

XenonStack is an AI application that offers a comprehensive suite of tools and services for building and managing Agentic Systems. The platform provides solutions for data management, analytics, AI transformation, and decision-making processes. With features like AI-enabled catalogs, industrial automation, and agent orchestration, XenonStack aims to empower enterprises to reimagine their business workflows and drive efficiency and agility through intelligent AI agents.

Trends Critical is an AI text generation SaaS application that combines trends with AI to provide faster and better outcomes. It helps users discover trend-validated opportunities, incorporate hype trends into business and personal growth, and create trend-inspired insights with AI. The platform accelerates growth by providing trend-backing partners and real-world hype trends, allowing users to launch products, build partnerships, and turn partner trends into profitable opportunities in seconds. With support for over 50 languages, Trends Critical offers 200+ trends, 60+ AI templates, and exclusive partnership opportunities for individuals, freelancers, influencers, brands, and corporates.

Slideworks is a platform offering strategy templates created by ex-McKinsey consultants. The website provides high-end PowerPoint and Excel templates for creating world-class strategy presentations. Users can access templates for consulting proposals, business strategies, market analysis, and more. Slideworks aims to streamline the process of creating professional presentations by offering proven frameworks, slide layouts, figures, and graphs. The platform is trusted by over 4,500 customers worldwide and is designed to meet the needs of individuals and businesses looking to enhance their strategic communication.

Isomeric is an AI tool that uses artificial intelligence to semantically understand unstructured text and extract specific data. It helps transform messy text into machine-readable JSON, enabling tasks such as web scraping, browser extensions, and general information extraction. With Isomeric, users can scale their data gathering pipeline in seconds, making it a valuable tool for various industries like customer support, data platforms, and legal services.

AnyAPI is an AI tool that allows users to easily add AI features to their products in minutes. With the ability to craft the perfect GPT-3 prompt using A/B testing, users can quickly generate a live API endpoint to power their next AI feature. The platform offers a range of use cases, including turning emails into tasks, suggesting replies, and retrieving plain text JSON. AnyAPI is designed to streamline the integration of AI capabilities into various products and services, making it a valuable tool for developers and businesses seeking to enhance their offerings with AI technology.

PG's Principles is an AI Mentor designed to provide responses based on the principles advocated by Paul Graham in his essays. It aims to help users make decisions by following the framework of the legendary figure. The tool offers a unique approach to mentorship by leveraging Graham's insights and philosophies.

AdIntelli is an AI tool that helps users earn revenue from their AI Agents by displaying in-chat ads. It offers a platform for maximizing ad revenue through advanced AI-driven monetization technology, tailored for AI applications and ChatGPT Plus subscriptions. AdIntelli simplifies the process of integrating ads into AI Agents without the need for coding skills, providing a seamless user experience and personalized ad placements.

Prooftiles is a platform designed to help businesses increase their conversion rate and average order value. It offers a suite of tools and features to optimize sales processes and enhance customer experience. With Prooftiles, businesses can access DocsLM to streamline document management and improve efficiency. The platform also provides pricing information, integrations with other tools, and valuable insights through its blog section.

Aicoachbud.com is a website that provides coaching services for personal development and career growth. The platform offers personalized coaching sessions with experienced professionals to help individuals achieve their goals and overcome challenges. With a focus on leveraging AI technology to enhance coaching effectiveness, aicoachbud.com aims to empower users with the tools and guidance needed to succeed in various aspects of their lives.

ChatCSV is your personal data analyst that allows you to interact with your spreadsheets in a conversational manner. Simply upload a CSV file and start asking questions to get insights through visualizations. It is designed to assist users across various industries such as retail, finance, banking, marketing, and more, making data analysis more accessible and intuitive.

Rawbot is an AI model comparison tool designed to simplify the selection process by enabling users to identify and understand the strengths and weaknesses of various AI models. It allows users to compare AI models based on performance optimization, strengths and weaknesses identification, customization and tuning, cost and efficiency analysis, and informed decision-making. Rawbot is a user-friendly platform that caters to researchers, developers, and business leaders, offering a comprehensive solution for selecting the best AI models tailored to specific needs.

Business Automated is an independent automation consultancy that offers custom automation solutions for businesses. They provide services such as creating automated content blogs, managing projects, sales CRM, and more. The website also features tutorials and products related to automation tools like Airtable, GPT API, and ChatGPT.

The AI Lean Canvas Generator is an AI-powered tool designed to help businesses create Lean Canvas for their company based on its description. It simplifies the process of summarizing key aspects of a business model, such as target market, value proposition, revenue streams, cost structure, and key metrics. The tool is based on the Lean Startup methodology, emphasizing rapid experimentation and iterative development to reduce risk and uncertainty in the early stages of a business. It offers a flexible and adaptable approach to building successful businesses, often used in conjunction with customer development and agile development practices.

Co-Founder AI is an AI-powered tool that accelerates startup success by providing in-depth business reports and actionable insights. It utilizes AI to generate well-structured business plans and offers essential insights to validate IT-business ideas. The tool covers various aspects such as market trends, competitor analysis, sales techniques, and fundraising strategies, enabling users to make data-driven decisions for driving growth.

SunDevs is an AI application that focuses on solving business problems to provide exceptional customer experiences. The application offers various AI solutions, features, and resources to help businesses in different industries enhance their operations and customer interactions. SunDevs utilizes AI technology, such as chatbots and virtual assistants, to automate and scale business processes, leading to improved efficiency and customer satisfaction.

JobMojito is an AI Interview Platform that offers real-time avatar and voice interviews for job candidates. It provides interview coaching, job preparation, and support in English. The platform allows users to screen, evaluate, and select top talent using an AI Avatar that converses with candidates in real-time. JobMojito offers a comprehensive solution for managing the entire interview process, including preparation, conducting interviews with the avatar, providing instant feedback, and assessing candidates using AI technology. The platform is designed to attract new talent and streamline the recruitment process for organizations.

Lenny Rachitsky is a website that offers insights and resources for product managers and entrepreneurs. It provides valuable articles, guides, and interviews to help professionals improve their product management skills and grow their businesses. The platform covers a wide range of topics such as product strategy, user research, and team management, making it a valuable resource for anyone working in the product development field.

AppManager is an AI IT agent designed specifically for startups to streamline app and user provisioning processes. With the power of AI, AppManager makes managing app subscriptions, user permissions, and payment methods effortless and cost-effective. It helps startups focus on growth by simplifying IT management tasks and providing smart spending insights.

WriteMyPrd is an AI tool designed to make writing Product Requirements Documents (PRDs) easier and more efficient. By leveraging ChatGPT Olvy 3.0, the tool speeds up feedback analysis by 10x, helping users to quickly generate PRDs with basic information. Users can access resources, templates, and guides to assist in creating effective PRDs. The tool aims to simplify the process of initiating and outlining product planning and delivery through a user-friendly interface.