tryAGI/LangChain

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C# implementation of LangChain. We try to be as close to the original as possible in terms of abstractions, but are open to new entities.

Stars: 1.1k
Forks: 141
Open beginner issues: 0
Indexed issues: 48
Avg merge: 2d 18m
Merged PRs (30d): 2

Dominant language: C#
License: MIT
Last GitHub push: Sep 11, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue help wanted

Beginner friendly Everything

Open All

48 open issues indexed

new version Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

tryAGI/LangChain#592 · 1 comment · Opened Feb 27, 2026
Ollama provider returns Bad request Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

tryAGI/LangChain#559 · Opened Aug 5, 2025
is there langchain.agents? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

tryAGI/LangChain#550 · 1 comment · Opened Jul 15, 2025
Design about TextSplitter - allow multiple RAG techniques Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tryAGI/LangChain#545 · 1 comment · Opened Jun 24, 2025
Adding to Unity? Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

tryAGI/LangChain#544 · Opened Jun 16, 2025
LangChain.NET code to search record using pinecone database Open

.NET question vector databases

Difficulty 4/5 3-5 days Newbie friendliness 20/100

tryAGI/LangChain#525 · 2 comments · Opened Apr 10, 2025
Unable to run LLamaSharp provider on CPU Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 25/100

tryAGI/LangChain#521 · 1 comment · Opened Mar 30, 2025
Adding new records to a vector database Open

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

tryAGI/LangChain#519 · Opened Mar 28, 2025
Add ResponseFormat parameter to LangChain.Providers.OpenAI.OpenAiChatModel.GenerateAsync Open

enhancement providers

Difficulty 3/5 1-2 days Newbie friendliness 45/100

tryAGI/LangChain#510 · Opened Feb 25, 2025
Feature Request: Search collection items by metadata (datasource path) Open

enhancement good first issue help wanted

Difficulty 5/5 Over a week Newbie friendliness 25/100

tryAGI/LangChain#446 · 1 comment · 2 reactions · Opened Aug 27, 2024
Failed to run Checking-internet-speed-with-Crew-and-Ollama Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 30/100

tryAGI/LangChain#440 · 2 comments · Opened Aug 21, 2024
JSON Loader Open

enhancement good first issue

tryAGI/LangChain#433 · 2 comments · 1 reaction · 1 assignee · Opened Aug 12, 2024
Bug title Open

bug providers

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tryAGI/LangChain#340 · Opened Jun 11, 2024
LangChain.Samples.Prompts example raises System.InvalidOperationException Open

bug providers

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tryAGI/LangChain#339 · 2 comments · Opened Jun 11, 2024
Serve: Provide OpenAI SDK compatible API Open

enhancement providers

Difficulty 5/5 Over a week Newbie friendliness 15/100

tryAGI/LangChain#275 · 5 comments · Opened Apr 30, 2024
Source Generators for Functions/Tools don't work when used in Console global namespace Open

bug cli

Difficulty 4/5 3-5 days Newbie friendliness 25/100

tryAGI/LangChain#249 · Opened Apr 24, 2024
Providers: Added ability to get typed object from ChatResponse Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tryAGI/LangChain#247 · Opened Apr 23, 2024
Add options like temperature to LangChain CLI OpenAI provider command Open

cli enhancement sweep

Difficulty 3/5 1-2 days Newbie friendliness 20/100

tryAGI/LangChain#239 · 1 comment · 2 reactions · Opened Apr 23, 2024
Add Together provider support to LangChain CLI Open

cli enhancement sweep

Difficulty 3/5 1-2 days Newbie friendliness 25/100

tryAGI/LangChain#238 · 1 comment · 2 reactions · Opened Apr 23, 2024
Concept: Prompts Open

enhancement providers use-case

Difficulty 5/5 Over a week Newbie friendliness 20/100

tryAGI/LangChain#229 · Opened Apr 22, 2024
Docs: Generate images Open

documentation

Difficulty 3/5 1-2 days Newbie friendliness 30/100

tryAGI/LangChain#213 · Opened Apr 12, 2024
Docs: Execute a local .NET function Open

documentation

Difficulty 3/5 1-2 days Newbie friendliness 25/100

tryAGI/LangChain#212 · 1 reaction · Opened Apr 12, 2024
Docs: Create an app to chat about your data Open

documentation

Difficulty 5/5 Over a week Newbie friendliness 25/100

tryAGI/LangChain#211 · Opened Apr 12, 2024
Docs: Build a chat app Open

documentation

Difficulty 3/5 1-2 days Newbie friendliness 30/100

tryAGI/LangChain#210 · Opened Apr 12, 2024
Docs: Summarize text Open

documentation

Difficulty 3/5 1-2 days Newbie friendliness 25/100

tryAGI/LangChain#209 · 1 comment · Opened Apr 12, 2024
Bug: CrewTest has bugs Open

sweep

Difficulty 3/5 1-2 days Newbie friendliness 25/100

tryAGI/LangChain#195 · 1 comment · 2 reactions · Opened Apr 7, 2024
Sweep: Add xml documentation for LangChain.Providers.Abstractions package where it was missing Open

sweep

Difficulty 3/5 1-2 days Newbie friendliness 15/100

tryAGI/LangChain#181 · 1 comment · 2 reactions · Opened Apr 1, 2024
LangServe Smart Components Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 15/100

tryAGI/LangChain#180 · Opened Apr 1, 2024
VectorStore/VectorIndex methods should allow to specify multiply Sources Open

enhancement good first issue

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tryAGI/LangChain#178 · Opened Mar 28, 2024
Remove LLMChain and refactor Open

enhancement

tryAGI/LangChain#128 · 1 assignee · Opened Feb 2, 2024
RefineDocumentsChain Open

enhancement good first issue help wanted

Difficulty 3/5 1-2 days Newbie friendliness 42/100

tryAGI/LangChain#126 · Opened Feb 1, 2024
Add alternative SST/TTS with streaming capabilities Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 15/100

tryAGI/LangChain#115 · Opened Jan 25, 2024
Concept: Tools Open

enhancement meta

Difficulty 5/5 Over a week Newbie friendliness 20/100

tryAGI/LangChain#114 · 1 comment · Opened Jan 25, 2024
Concept: Notifiers Open

enhancement meta

Difficulty 5/5 Over a week Newbie friendliness 25/100

tryAGI/LangChain#113 · 1 comment · Opened Jan 25, 2024
Integrate LangSmith Open

enhancement good first issue help wanted

Difficulty 5/5 Over a week Newbie friendliness 20/100

tryAGI/LangChain#112 · Opened Jan 25, 2024
Add something like LangServe for easy end-point generation for ASP.NET Open

enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 15/100

tryAGI/LangChain#111 · Opened Jan 25, 2024
Better documentation Open

documentation enhancement good first issue help wanted

Difficulty 5/5 Over a week Newbie friendliness 20/100

tryAGI/LangChain#110 · Opened Jan 25, 2024
Go through the python LangChain documentation and add more things to the board Open

good first issue help wanted

Difficulty 4/5 3-5 days Newbie friendliness 25/100

tryAGI/LangChain#109 · Opened Jan 25, 2024
Make an example of a chatbot, with backend and frontend implementation (most likely Blazor or Uno Platform WebAssembly) Open

documentation help wanted use-case

tryAGI/LangChain#107 · 2 comments · 1 assignee · Opened Jan 25, 2024
Make an example of RAG over urls Open

documentation enhancement good first issue help wanted use-case

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tryAGI/LangChain#106 · 1 comment · Opened Jan 25, 2024
Explore ability to use with DataFlow Open

enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 20/100

tryAGI/LangChain#105 · Opened Jan 25, 2024
Asp.net endpoints to mimik OpenAPI to allow use Web UIs Open

enhancement good first issue help wanted

Difficulty 5/5 Over a week Newbie friendliness 20/100

tryAGI/LangChain#103 · Opened Jan 25, 2024
SQLDatabase Open

enhancement good first issue help wanted

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tryAGI/LangChain#75 · 2 comments · Opened Nov 20, 2023
QA over SQL Open

meta use-case

Difficulty 5/5 Over a week Newbie friendliness 20/100

tryAGI/LangChain#74 · Opened Nov 20, 2023
Summarization Open

meta use-case

Difficulty 4/5 3-5 days Newbie friendliness 25/100

tryAGI/LangChain#64 · Opened Nov 13, 2023
AnalyzeDocumentsChain Open

good first issue

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tryAGI/LangChain#63 · 1 comment · Opened Nov 13, 2023
SVMRetriever Open

enhancement good first issue help wanted

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tryAGI/LangChain#9 · 1 comment · Opened Aug 11, 2023
QA over Documents Open

meta use-case

Difficulty 5/5 Over a week Newbie friendliness 15/100

tryAGI/LangChain#4 · 4 comments · Opened Aug 11, 2023

tryAGI/LangChain

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