AI agent tool calling middleware - AI tools

Arch Gateway is an AI-native proxy server designed to help developers build sophisticated agentic AI applications by simplifying prompt processing, security, observability, and integration.

• Free

Arcade is an AI tool-calling platform enabling AI to securely interact with APIs, data, and systems via authenticated integrations. Build AI assistants that perform tasks using pre-built connectors or a custom SDK.

• Freemium
• From 50$

AgentRPC is a universal RPC layer designed to unify tools from multiple programming languages into a single interface for AI agents, enabling connectivity across networks, including private VPCs.

• Freemium
• From 20$

Colossal provides a global directory of AI agents capable of performing API calls, allowing seamless integration into applications without needing to build custom tools.

• Contact for Pricing

Agency offers tools and expertise to assist teams in building, prototyping, and deploying reliable AI agents, supported by the AgentOps observability platform.

• Contact for Pricing

CallFluent AI offers AI-powered phone agents that handle calls 24/7, turning missed calls into revenue opportunities. It integrates with popular platforms and provides human-like voice interactions.

• Paid
• From 37$

MCP Agent Seek utilizes an intelligent assistant to recommend suitable Model Context Protocol (MCP) tools based on user descriptions, helping connect AI with data and applications.

• Free

aiXplain offers a platform for building and deploying adaptable, scalable, and trusted AI agents. It features pre-developed agents and tools for custom agent creation.

• Usage Based

Monoid is an open-source platform that transforms APIs into AI Agents, enabling LLMs to gain context and perform real-time actions through a seamless and customizable interface.

• Free Trial

Alan AI is an enterprise Agent OS platform for building universal AI agents that integrate with enterprise data and applications to automate workflows and boost productivity.

• Contact for Pricing

Vestra AI is a platform enabling users to build, deploy, and manage custom AI agents using natural language, without coding. Explore pre-built agents or create unique ones for task automation.

• Usage Based

LM-Kit provides .NET developers with tools for AI agent customization, creation, and orchestration. It enables multimodal generative AI systems integration in C# and VB.NET applications.

• Paid
• From 1000$