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MCP servers tagged function-calling
33 live MCP servers tagged "function-calling", ranked by trust score. Tags come from package metadata and repository topics, so this list covers servers across every category that work with function-calling.
Klavis-AI/YouTube
Klavis AI (YC X25): MCP integration platforms that let AI agents use tools reliably at any scale
Yomo
🦖 Serverless AI Agent Framework with Geo-distributed Edge AI Infra.
Dexto
A coding agent and general agent harness for building and orchestrating agentic applications.
Aci
ACI.dev is the open source tool-calling platform that hooks up 600+ tools into any agentic IDE or custom AI agent through direct function calling or a unified MCP server. The birt…
Makerai
The AI Operating System for Delphi. 100% native framework with RAG 2.0 for knowledge retrieval, autonomous agents with semantic memory, visual workflow orchestration, and universa…
Peta Core
Peta core: The Control Plane for MCP — secure vault, managed runtime, audit trail, and policy-based approvals.
LLM Functions
Easily create LLM tools and agents using plain Bash/JavaScript/Python functions.
Gemini Search
Model Context Protocol (MCP) with Gemini 2.5 Pro. Convert conversational queries into flight searches using Gemini's function calling capabilities and MCP's flight search tools
Mcpc
Cross-platform C SDK for Model Context Protocol (MCP), in modern🚀 C23.
Xemantic AI Tool Schema Mdc
Adapting xemantic-ai-tool-schema to Model Context Protocol kotlin-sdk Tool input
Toolregistry
ToolRegistry: A Protocol-Agnostic Tool Management Library for Function-Calling LLMs
Fim One
LLM-powered Agent Runtime with Dynamic DAG Planning & Concurrent Execution
Gemma MCP
MCP Client for Gemma-3
Agentmaker
A general-purpose Python framework for building LLM agents and multi-agent systems. "Four lines of code, an agent with memory."
Dida RollingGo Hotel MCP Global
Official DIDA Hotel Booking MCP Server. 14-year travel tech data stack, 2M+ hotels at wholesale rates, 40+ LLM compatible. Free unlimited calls for businesses & individual devs. F…
SirChatalot
A Telegram bot that proves you don't need a body to have a personality. Works with any OpenAI-compatible LLM; agentic tools, MCP, RAG over your files, memory, vision, voice and im…
Observee
Observee (YC S25) lets you build AI agents with 1000+ integrations using MCPs with managed OAuth, Security and Observability
AgentRunKit
Lightweight Swift 6 framework for building LLM-powered agents — cloud + on-device inference via MLX on Apple Silicon
Agentlys
Lightweight AI agent library. Turn Python functions/classes into AI tools instantly. No verbose configs or complex abstractions.
Yaicli
YAICLI: A powerful command-line AI assistant with 25+ LLM providers. Features chat, command execution, quick queries, function calling, MCP support, and persistent history. Seamle…
Opencode LLM Proxy
Local AI gateway for OpenCode with tool/function calling — use any model via OpenAI, Anthropic, or Gemini API
LLM Dev Demo
Hands-on examples for LLM application development, including agents, RAG, MCP, structured output, and Text-to-SQL.
Function Calling Adapter
This library provides a function calling adapter for the Model Context Protocol (MCP).
Conv
Standalone package for converting API specs into agent-ready tool surfaces.
Apiz
MCP (Model Context Protocol) server for apiz.ai — exposes generate / get_result / search_models / guide / account / speak / parse_video / transfer_url tools
Discover
Active tool discovery for AI agents — find, activate, and orchestrate 3,400+ governed MCP servers on demand
Scoutkit
Ready-to-use, tool-call-wrapped data-source clients for AI agents — Twitter/X (twitterapi.io), YouTube, Reddit, Hacker News, Google SERP (Serper), Exa, Tavily, and Apify (TikTok).…
Lite MCP SDK
a light weight version of mcp sdk inspired by official model context protocol sdk, NOW focus on sse only no stdio
SonAIengine/graph-tool-call
tools.
API To Tools
Universal library that converts any API (OpenAPI, WSDL/SOAP, GraphQL, gRPC) into LLM-callable tool definitions
Forgewisp Core
Forgewisp — safe, function-calling AI agents for the browser. Register your own functions as validated tools, with risk-tier execution, OpenAI-compatible streaming, dual reasoning…
Toolschema
Canonical Python layer for AI agent tools - function to JSON Schema, once, everywhere. OpenAI, Anthropic, MCP, LangChain, FastMCP.
IRIS Project
IRIS — Integrated Runtime Intelligence Service. Multi-provider AI router with MCP server (13 tools), 16 providers (5 native + 11 OpenAI-compatible registry), council fan-out, batc…