Question: I need a customizable automation solution that allows me to build custom integrations with my existing tools.

If you want a customizable automation tool, Zapier is a top contender. It integrates with more than 7,000 apps and can be used to track leads, manage sales pipelines, run marketing campaigns and more. With features like custom Zaps, Tables and Interfaces, you can automate workflows without having to write code. It's good for startups, small and medium-sized businesses and enterprises, with a range of pricing options and strong security.

Another top choice is NexusGPT, a no-code platform for creating and combining custom AI agents. You can create agents for specific tasks, each combining knowledge you upload and custom tools you create. With a library of more than 1,500 prebuilt agents and the ability to fine-tune with examples, NexusGPT is good for automating repetitive tasks and optimizing workflows in many industries.

If you're more of a programmer, n8n is an extensible workflow automation tool geared for technical teams. It's got 400+ integrations, and you can inject your own code with JavaScript or Python, too, along with a visual workflow editor and advanced AI features. That makes it good for more advanced automation, and it's available in several pricing tiers to match business size and needs.

Last, Relay is a new automation tool that's designed to be easy to integrate with a range of tools like Airtable, Gmail and Slack. It's got advanced workflow tools and human-in-the-loop steps for collaboration. With its graphical interface and flexible pricing, Relay is designed to make workflow automation accessible to teams of any size, increasing productivity and collaboration.