Open-source Yellow.ai alternatives

Botpress is a platform for building chatbots and AI assistants powered by large language models such as OpenAI's GPT. Its Botpress Cloud product is the main way to build and run agents, and this repository holds the open-source parts that surround it. It is written in TypeScript and released under the MIT license.

The repository contains the public integrations on the Botpress Hub that Botpress maintains, the developer tools for Botpress Cloud including the CLI, SDK and API client, examples of bots written as code with the SDK and CLI, and plugins for Botpress Studio. Developers can create their own integration from a template using the CLI and publish it to the Hub without forking the repository.

Contributions are welcome through pull requests and issues for the code in the repository, while Discord is suggested for faster responses about Cloud issues. On-premise Botpress version 12 is maintained in a separate repository, which is where problems with that version belong.

Typebot is a chatbot builder released under a Fair Source license. It lets you create conversational flows visually, embed them in web or mobile apps, and collect the results as they come in. The building blocks are meant to adapt to many business cases such as lead capture, forms and support triage.

The editor offers more than 30 blocks across bubbles for text, images, video, audio and embeds, inputs for email, phone, buttons, dates, files and Stripe payments, logic for conditions, redirects, scripts and A/B tests, and integrations with webhooks, OpenAI, Google Sheets, Google Analytics, Meta Pixel, Zapier, Make and Chatwoot. Themes cover fonts, colors and custom CSS, and analytics show drop-off and completion rates, with CSV export.

Bots can be shared on a custom domain or embedded as a container, popup or chat bubble using a native JavaScript library. The app is built with Next.js, TypeScript and Tailwind CSS. An official managed service is available, and the project can also be self-hosted. APIs are provided for developers.

Dograh is an open-source platform for building voice AI agents that can make and receive phone calls. It describes itself as a self-hostable alternative to Vapi and Retell, and promises full code transparency with no vendor lock-in. Agents are designed in a visual workflow builder and can be tested quickly before going live.

The platform supports bring-your-own-key setups across speech-to-speech models or a pipeline of language model, speech-to-text and text-to-speech providers, including local models. It is MCP-native, so AI coding assistants can help design and edit agents, and it includes telephony support for inbound and outbound calling, with Asterisk ARI among its topics. It is written in Python and builds on the Pipecat framework.

Dograh is released under the BSD 2-Clause license and can run on premises or in a hosted cloud, with the vendor operating an app site. It suits support, sales and operations teams that want to automate calls while controlling data and provider choice.