Open Source Alternatives to Cresta

Kaaia provides an AI-powered platform for automating and optimizing customer support operations.

Open source

Ultravox.ai (formerly Fixie.ai) is building human-like voice AI agents and models for natural, real-time communication.

Open source

White-label AI voice agents and chatbots for automated customer support and task automation.

Open source

Visual IDE for programming and deploying AI Agents without writing code.

Open source

AI receptionist for tourism and experience operators that answers calls and books directly.

Open source

Deepgram is an enterprise voice AI platform providing APIs for speech-to-text, text-to-speech, and voice agents, used by over 200,000 developers to build voice-first products.

Open source

Enterprise Voice AI platform for automating 24/7 phone calls with self-hosted, custom AI agents.

Open source

Device intelligence platform for fraud prevention, bot detection, and enhanced customer experiences.

Open source

Open source

Platform for continuous evaluation, monitoring, and reinforcement learning for enterprise AI agents.

Open source

One control plane for trustworthy enterprise AI — performance, observability, guardrails, and governance across the full lifecycle.

Open source

Consumer-focused AI agent for handling complex customer service interactions.

Open source

Tools for debugging and monitoring AI agents and browser automation tasks.

Open source

Phone carrier for AI agents, providing real phone numbers, voice, and messaging via API.

Open source

Automated testing and observability for AI voice and chat agents to ensure reliability and accelerate deployment.

Open source

LlamaIndex empowers developers to build agents that extract insights and take action on complex enterprise documents, combining industry-leading parsing with a trusted agent framework.

Open source

Lionwire develops an AI platform that leverages advanced voice AI to create and deploy autonomous outbound sales and customer engagement agents.

Open source

AI solutions for enhanced customer experiences and operational efficiency.

Open source

Google Cloud's suite of AI and machine learning services for developers and businesses.

Open source

Getpoint is an AI-powered platform that helps businesses automate customer support and sales with intelligent agents.

Open source

AI-powered bodycam solution for enhanced situational awareness and evidence.

Open source

Callrich provides an AI-powered outbound calling platform for sales teams to automate prospecting and qualification.

Open source

ElevenLabs AI Music Generator allows users to quickly create high-quality, customized music tracks in any genre or style, with or without vocals, in multiple languages using simple text prompts.

Open source

An open-source TypeScript/JavaScript framework for building AI agents, from the creators of Gatsby.

Open source · Self-hostable

Vapi provides a highly configurable API platform for developers and enterprises to build, deploy, and scale human-like voice AI agents.

Open source

AI agent system automating pre-construction engineering workflows for energy and industrial infrastructure projects.

Open source

AI agent for firmware development that reads datasheets, writes code, flashes boards, runs tests, and fixes mistakes autonomously.

Open source

Open source

Cloud-based browser API for AI agents, simplifying web automation with anti-bot protection and session persistence.

Open source · Self-hostable

Agency builds custom AI Agents that operate 24/7/365, offering consulting, development tools, and an observability platform to help businesses automate.

Open source

AI-native search engine API for RAG and AI agents, providing factual and reliable information.

Open source

An invisible desktop AI assistant providing real-time, context-aware assistance by analyzing screen content and audio.

Open source

Backend-as-a-Service infrastructure for autonomous AI agents, enabling production-grade agent deployment.

Open source

Develops enterprise-grade chatbots and AI agents for customer interactions.

Open source

An open-source technology provider offering an open control plane for AI agents.

Open source · Self-hostable

A managed, private, and production-grade environment for OpenClaw, offering access to over 500 AI models and essential tools.

Open source · Self-hostable

AI-powered workflow automation platform that saves users time by automating repetitive tasks.

Open source

Open-source autonomous AI agent platform that automates complex digital workflows.

Open source · Self-hostable

AI-powered platform that continuously tests and optimizes website content, visuals, and code for enhanced personalization and user engagement.

Open source

AI-powered platform for building and deploying custom AI agents.

Open source

AI-powered platform for building and deploying sophisticated conversational AI agents.

Open source

AI-powered agents automating sales outreach, lead qualification, and customer engagement.

Open source

AI-powered platform for automated software testing and quality assurance.

Open source

Open-source AI models for voice synthesis, translation, and TTS.

Open source · Self-hostable

Enterprise Conversational AI platform for automating customer interactions and business processes.

Open source

A context layer that aligns humans and AI agents by capturing decisions, intent, and history across work.

Open source

Always-on AI DevOps engineer that diagnoses CI failures, fixes flaky tests, and ships fixes.

Open source

An AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.

Open source · Self-hostable

Vibecode is a platform that helps developers build and deploy AI agents.

Open source

Vertical voice AI platform automating patient intake and telephone management for Italian medical centers.

Open source

Open source

Conversas que geram resultado. Descubra como marcas enterprise transformam cada interação em crescimento com a Blip.

Open source

Develops an AI agent utilizing the Model Context Protocol (MCP) for enhanced AI interaction.

Open source

Generative AI platform for creating and managing AI agents for business automation.

Open source

Open-source, privacy-focused voice assistant and AI platform.

Open source · Self-hostable

Open source

Parlant is an open-source conversational AI engine dedicated to solving the Human/AI alignment problem by enabling Large Language Models to reliably perform as desired and prevent hallucinations.

Open source · Self-hostable

An agentic development environment orchestrating heterogeneous AI models across multiple providers.

Open source

Next-gen API security for semantic applications and LLMs.

Open source · Self-hostable

Open source