Claude
4.7Built by former OpenAI safety researchers around a written constitution
Platform
AI tools that offer a developer API for programmatic access and integration.
Built by former OpenAI safety researchers around a written constitution
The 2021 launch that started this entire category
The voice model other TTS tools get compared against
InsightBase lets non-technical teams query databases in plain English and build dashboards without writing SQL.
Identity and personalization API that lets developers build context-aware apps from data users choose to share.
B2B lead generation platform that surfaces verified emails and mobile app tech stacks.
Voice AI agent that runs 24/7 candidate screening interviews for recruiting teams.
The free recruiting & hiring platform that interviews 100% of your applicants — fairly, in 60+ languages.
AI voice agents, chatbots, and n8n automation for small businesses
Agentic test automation platform for web, mobile, API, performance and accessibility testing, with AI auto-healing of tests, test generation, failure summaries and a testing harness that runs inside a developer's IDE or terminal.
Interactive proposal and quote software with e-sign, payments and buyer analytics, plus an AI Proposal Creator that turns a website into a proposal template, AI Prefill, a Smart Proposal Engine and an MCP server for AI tools.
Predictive database that returns calibrated predictions from a company's own data in a single query, with no model to train, for invoice coding, routing, smart search, recommendations, anomaly detection and as a tool for AI agents.
Translation management system for developers, with an online editor, API and a wide range of file formats for multi-language apps and websites, and bots that translate automatically in the background using machine translation APIs and AI language models.
Open-source framework and developer platform for building voice, video and physical AI agents, with turn detection and interruption handling, an inference gateway for STT, LLM and TTS models, telephony and observability.
AI chatbot builder that trains a chatbot on uploaded TXT, PDF, DOCX or MP3 files, with digital-human avatar replies, multilingual answers and a Boost option that trades extra credits for better accuracy.
Drag-and-drop platform for building, deploying and reselling AI agents, with a Routine Engine of 150+ blocks, pre-built sales, support, invoice and booking agents, and white-labeling on a revenue-share model.
Serverless cloud platform for running AI workloads, with GPU inference, fine-tuning and training, sandboxes for agents, batch jobs and multi-node clusters, billed per second with $30 of free compute a month.
AI context platform for private capital firms that builds a Context Graph of a firm's deals and documents, runs Workflows on it, and feeds that knowledge into the AI tools the team already uses through an MCP server.
Engineering intelligence platform that measures what AI coding tools do to cycle time, code quality and delivery, with Ask AI, AI pull request reviews and summaries, AI code fixes and an MCP server.
AI design-to-code platform that turns Figma designs, prompts and website URLs into editable HTML or React, with a browser playground, Buddy Figma agent, an MCP server for coding agents and an API.
Health data platform for developers that turns phone and wearable data from 800+ devices into health scores, biomarkers and archetypes through an SDK and API, with an AI Agents layer grounded in that data.
AI health operating system for companies building health and wellness products: it unifies 500+ wearable, lab and lifestyle data sources and runs modular AI for coaching, fitness plans, sleep, nutrition and biomarker insights.
Go-to-market infrastructure for AI agents: a data model, 100+ connectors and hosted workflows where LLM agents research, enrich, score and route leads, with revenue logic kept as versioned code.
Platform for building and sharing AI agents that work on company knowledge, with 70+ connectors to tools like Slack, Notion and GitHub, a choice of 20+ models, multi-agent workflows and permission controls.
Cloud-native GIS platform for spatial analysis that runs inside BigQuery, Snowflake, Redshift or Databricks, with AI Agents that answer location questions and build maps from natural-language prompts.
Visual media platform that optimizes, transforms and delivers images and video through URL parameters, with AI transformations for generative fill, background removal and AI backgrounds, plus smart cropping and captions.
Graph database and knowledge-graph platform positioned as a knowledge layer for AI, with GraphRAG for grounded LLM answers, Aura Agent for building context-aware agents, vector search and MCP support.
Communications platform for building voice AI agents on carrier-grade telephony, with a no-code agent studio, programmable agents for LiveKit and Pipecat, AI noise cancellation, turn detection and automatic simulations.
Communications platform with messaging, voice, email and verification APIs, plus AI features: artificial traffic detection, Smart Conversations with sentiment detection and PII masking, Voice Relay for AI phone calls and an MCP server.
Clinical AI triage platform that assesses patient symptoms by chat, voice or call center and routes them to the right level of care, certified as a Class IIb medical device under EU MDR, with intake and API products.
Fintech platform for banks that turns transaction and open banking data into personalized financial insights, cashflow forecasts and customer segments, using AI models trained on 60+ million transactions.
Customer engagement platform for mobile and omnichannel marketing with CleverAI: a real-time decisioning engine that picks the message, offer and timing per customer, churn and conversion predictions, and AI-driven experiments.
AI platform for IP, R&D and life sciences teams, with Eureka agents for novelty and freedom-to-operate searches, patent drafting, TRIZ problem solving and SAR data extraction over a patent and literature database.
Time-series database and real-time computing platform with AI features on top: Chat-to-Query text-to-SQL, RAG-based Smart Q&A, native MCP support for LLMs, in-database ML inference and the DolphinMind assistant.
Transcription and subtitling service from the Netherlands with machine-made speech-to-text in 90+ languages, human-reviewed transcripts and subtitles, a speech-to-text API and the Amber Notes AI meeting notetaker.
Open-source machine learning toolkit for processing natural language text, covering tokenization, part-of-speech tagging, named entity extraction, parsing and language detection, with pre-trained models for 36 languages.
Language Operations platform that translates customer service and business content with AI, routes work to human reviewers when needed, and scores output with AI quality estimation and an MT model comparison tool.
All-in-one platform that combines CRM, business telephony in 90+ countries, WhatsApp and email channels, AI agents and voice tools, with a free version.
Phone number service for AI agents that lets a bot such as a Grok, ChatGPT or Claude assistant make and answer calls and send you a written summary after each one.
Shopify app bundle for SEO monitoring, AI visibility and product data sync, with an AI agent connection through Shopify Sidekick and MCP.
Local-first file workspace for AI agents that tracks every edit in Git and can publish the same workspace to the cloud for teammates, MCP and API access.
Open-source, local-first desktop app where a team of specialist AI agents takes a chat brief and delivers research, documents, slides, videos and websites.
Forward deployed engineering software that connects your product through MCP, OpenAPI or a repository and deploys it into each customer's tools with review gates.
AI agents that resolve customer support tickets across email, chat, voice and WhatsApp, with a free plan and credit-based pricing that scales by usage rather than seats.
AI video editor where an agent reads your footage, cuts dead air, writes captions and publishes shorts, controllable from Claude, ChatGPT or Cursor over MCP.
Phone call analytics and AI receptionist for small businesses that audits calls from RingCentral, Twilio or recordings and reports missed revenue and callbacks.
Time tracking, tasks and team chat where AI agents such as Claude, GPT and Grok can take assigned work, with their time and cost logged alongside people.
No-code platform for building AI voice, chat and SMS agents that handle support, sales and HR calls, with analytics, scheduling and CRM integrations.