All tools
Building the product · 4 of 110 stories
LangChain
An open source framework (a code library) for Python and JavaScript: it supplies ready-made components that connect an application to language models, vector databases and other tools.
Who uses it, and for what
One row per story. The grade is for the claim that the business uses this tool, not for its revenue.
| Story | What it does there | When | Cost stated | Grade | Source |
|---|---|---|---|---|---|
| Chatbase | Library that connected the app to the model and the vector database in the first version. | C | Indie Hackers, 2023, interview by Channing Allen: How a college student reached $64,000/mo in 6 months by being an AI first mover | ||
| PDF.ai | Library that connects the document text to the OpenAI model in the original weekend build, before the purchase. | since May 2023 | C | Niall Doherty, 11 May 2023: Sold his app for $20K within 48 hours of launching | |
| DocsBot AI | Monitors and tests the chatbot logic and prompts. monitoring service of LangChain Inc. | C | A public page outside the story's source list | ||
| My AskAI | Library that splits long text into pieces of 400 tokens before it is indexed. | C | Pinecone blog, 14 June 2024: RAG Brag with My AskAI founders, Mike Heap and Alex Rainey |
Grade A: the tool's maker or a payment processor confirms the use. Grade B: an independent report, or the tool is visible in public code. Grade C: the founder or the company says so.
Used in the same businesses
Other tools in the stories above, with the number of stories that share both.
Other tools for the same job
Building the product, with the number of stories that use each.