Lemon AI – open-source Zapier NLA to empower agents
Hi HN, excited to share this open source Zapier NLA alternative I’ve been working on. A few weeks ago I found myself struggling to automate a relatively straightforward internal workflow using an open source LLM (update Hubspot based on Airtable entry and personal information coming from web sources, and send out a summary via Slack). There was no way to interact with these tools in a robust way so I decided to build my own connectors. While the existing connectors out there are helpful to reduce the risk of hallucinations by reading data from sources, agents only become truly powerful when…
Lemon AI – open-source Zapier NLA to empower agents launched on July 5, 2023 with 13 votes, #1,554 of 4,347 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
Lemon AI is an open-source alternative to Zapier NLA that enables AI agents to read from and write to external tools like HubSpot, Airtable, and Slack. Built for developers working with open-source large language models, it provides connectors that allow agents to reliably perform automated workflows without hallucinations. The tool integrates with frameworks like LangChain and supports both data retrieval and write operations across multiple platforms.
written from the facts on this page · September 2026
From the sources
Plan-Validate-Solve (PVS) Agent for accurate, reliable and reproducable workflow automation - felixbrock/lemon-agent
In the maker’s words, at launch
Hi HN, excited to share this open source Zapier NLA alternative I’ve been working on. A few weeks ago I found myself struggling to automate a relatively straightforward internal workflow using an open source LLM (update Hubspot based on Airtable entry and personal information coming from web sources, and send out a…
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Hey everyone, I here is a small open-source project I've been working on lately. I'd love to hear your thoughts and improvement ideas :) GitHub: [github.com/Vincenius/workout-lol](https://github.com/Vincenius/workout-lol)
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