Langflow
Langflow (IBM/DataStax)
Best for: API & Platform for people who want a checked, free option.
Langflow is a low-code canvas for composing LLM apps: drag together models, retrievers, tools, and MCP servers, then deploy as an API — open source with a very large community.
A free cloud account exists alongside the open-source codebase; enterprise-grade cloud plans exist but pricing isn't detailed on the site at check time. Card requirement not stated.
It fits developers prototyping RAG and agent pipelines visually before committing code.
The honest limits. Cloud pricing is opaque at check time; self-hosting is the cost-free path. Not used first-hand; confirm at langflow.org.
Pros and cons
What's good
- Has a free tier you can start on without paying.
- An API & Platform option from Langflow (IBM/DataStax).
Worth knowing
- The free tier has usage limits; heavier use needs a paid plan.
- Check the provider's current pricing and limits before you rely on it.
How to get started
- 1Open Langflow (IBM/DataStax)'s site with the Get Access button on this page.
- 2Create an account if prompted, then start with the free option.
- 3Come back for other checked tools if it is not the right fit.
FAQ
Is Langflow free?
Langflow is freemium — you can start using it at no cost. See the provider for current limits and any paid upgrades.
Who makes Langflow?
Langflow is provided by Langflow (IBM/DataStax).
What is Langflow used for?
Open-source visual builder for AI agents and RAG apps — free cloud account, self-host anytime, 150k+ GitHub stars.
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