LLM Function Calling LLM Tools

Tools and frameworks for parsing, routing, and executing function calls from LLMs, including schema generation, argument parsing, and multi-tool orchestration. Does NOT include general LLM SDKs, agent frameworks, or tool execution environments like sandboxes.

There are 53 llm function calling tools tracked. 1 score above 70 (verified tier). The highest-rated is Maximilian-Winter/llama-cpp-agent at 72/100 with 620 stars and 8,620 monthly downloads. 3 of the top 10 are actively maintained.

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#	Tool	Score	Tier	Stars	Language
1	Maximilian-Winter/llama-cpp-agent The llama-cpp-agent framework is a tool designed for easy interaction with...	72	Verified	620	Python
2	mozilla-ai/any-llm Communicate with an LLM provider using a single interface	63	Established	1,750	Python
3	ShishirPatil/gorilla Gorilla: Training and Evaluating LLMs for Function Calls (Tool Calls)	62	Established	12,759	Python
4	CliDyn/climsight A next-generation climate information system that uses large language models...	58	Established	55	Python
5	rizerphe/local-llm-function-calling A tool for generating function arguments and choosing what function to call...	49	Emerging	439	Python
6	day50-dev/llcat cat for LLMs	49	Emerging	25	Python
7	OoriData/OgbujiPT Client-side toolkit for using large language models, including where self-hosted	48	Emerging	115	Python
8	onnx/turnkeyml No-code CLI designed for accelerating ONNX workflows	47	Emerging	229	Python
9	ForgeOpus/ModelForge A no-code toolkit to finetune LLMs on your local GPU—just upload data, pick...	41	Emerging	11	Python
10	yomorun/llm-function-calling-examples Strongly-typed LLM Function Calling examples, run on OpenAI, Ollama, Mistral...	40	Emerging	18	TypeScript
11	machinelearningZH/simply-simplify-language Use machine learning to make your institutional communication more...	39	Emerging	49	Python
12	day50-dev/Mansnip Documentation snippets for LLM context injection	39	Emerging	94	Python
13	emirsahin1/llm-axe A simple, intuitive toolkit for quickly implementing LLM powered applications.	37	Emerging	275	Python
14	namin/holey Python library for program synthesis and symbolic execution combining...	36	Emerging	38	Python
15	andrewgcodes/dooo 1 universal function to do anything with LLMs. Painlessly swap between 100+ LLMs.	34	Emerging	11	Python
16	dlp3d-ai/orchestrator Orchestrator is a real-time intelligent conversation system for building...	34	Emerging	4	Python
17	KennispuntTwente/KWALLM An app for qualitative text analysis with large language models (LLMs) / Een...	34	Emerging	16	HTML
18	invergent-ai/surogate-studio Enterprise-grade LLMOps platform to accelerate the development and...	34	Emerging	14	Java
19	cadifyai/tool2schema Automatically convert functions to schemas for LLM function calling.	33	Emerging	21	Python
20	ntt-dkiku/chaos-eater An LLM-based system that fully automates Chaos Engineering (ASE 2025, NIER track)	33	Emerging	25	Python
21	kennethreitz/simplemind Python API client for AI providers that intends to replace LangChain and...	32	Emerging	538	Python
22	AtakanTekparmak/tiny_fnc_engine tiny_fnc_engine is a minimal python library that provides a flexible engine...	32	Emerging	38	Python
23	caua1503/llm-tool-fusion llm-tool-fusion é uma biblioteca Python que unifica e simplifica o uso de...	30	Emerging	3	Python
24	eunomia-bpf/KEN Kernel Extensions Large Language Model Agent	30	Emerging	36	C
25	piEsposito/tiny-ai-client Tiny client for LLMs with vision and tool calling. As simple as it gets.	30	Emerging	85	Python
26	amoffat/manifest Call an LLM like a function ✨	29	Experimental	43	Python
27	epuerta9/kitchenai Open Source LLMOps tool for AI teams	28	Experimental	129	Python
28	jamsocket/botsh An LLM-based agent that will install the tools it needs.	28	Experimental	225	Python
29	Shayan12456/use-every-llm One function to call any LLM.	28	Experimental	1	JavaScript
30	Leeroo-AI/leeroo_orchestrator The implementation of "Leeroo Orchestrator: Elevating LLMs Performance...	26	Experimental	56	Python
31	modAI-systems/llmock LLM Mock for Testing	24	Experimental	2	Python
32	empower-ai/empower-functions GPT-4 level function calling models for real-world tool using use cases	24	Experimental	223	Python
33	edlontech/sycophant A simple LLM Client for Elixir	23	Experimental	1	Elixir
34	murphyhoucn/llm-dev LLM Dev	23	Experimental	1	Python
35	AnuragB7/Ethereum-Protocol-Compliance LLM Powered compliance check for Ethereum code	22	Experimental	—	—
36	A221133/ANE-LM Run large language model inference on Apple Neural Engine using private APIs...	22	Experimental	—	C++
37	git-vish/formwise Formwise is an AI-powered form builder that uses LLaMA with structured...	22	Experimental	1	TypeScript
38	Dw58/compare-your-models 🔍 Compare AI coding assistants with an open-source benchmark tool across...	22	Experimental	—	Python
39	unmodeled-tyler/thought-tracer Enhanced Logitlens TUI application for mechanistic interpretability research	21	Experimental	2	Python
40	yankeexe/llm-function-calling-demo LLM Function Calling Demo for YouTube video 🎥	21	Experimental	10	Python
41	mraniki/MyLLM A python package to interact with llm model	21	Experimental	8	Python
42	subhamay-bhattacharyya/snowflake-de-llm-functions Hands-on demo using Snowflake Large Language Model functions for text...	19	Experimental	—	HCL
43	shashankdeshpande/llm-examples Examples showcasing the usage of OpenAI API's Function Calling feature,...	19	Experimental	3	Jupyter Notebook
44	serenorg/seren-llm-council Multi-LLM Council with x402 payment integration - query multiple AI models,...	15	Experimental	—	Python
45	Prelf1992/LLM-Orchestration-Framework A robust framework for building, deploying, and managing large language...	14	Experimental	—	Python
46	GH8ST007/llms_with_google_cloud Enable seamless integration of large language models with Google Cloud...	14	Experimental	—	Jupyter Notebook
47	mgmonteleone/py-dev-rev Opinionated Python Library and MCP for DevRev	14	Experimental	—	Python
48	pycui/universal-api Define and implement any functions on the fly with LLMs	14	Experimental	11	Python
49	kurtosis-tech/llm-package Spin up any(almost) llm locally!	14	Experimental	14	Starlark
50	Dicklesworthstone/llm-docs Condensed, LLM-optimized documentation for popular Python packages: stripped...	14	Experimental	64	—
51	WarwickSong/LLM-Deploy-API FastAPI-based Multi-Model Independent Process Scheduling Platform for...	11	Experimental	—	Jupyter Notebook
52	Airmomo/function-calling-parser function-calling-parser 是一个用于解析和调用外部工具的 Python 库，适用于支持 Function Calling...	10	Experimental	1	Jupyter Notebook
53	tanmaypatil/embedding-for-search build semantic search for rhino script test cases using LLM and openapi	10	Experimental	1	Jupyter Notebook

Comparisons in this category

llama-cpp-agent and llm-axe (72 vs 37)