5 AI Agent API Marketplaces Worth Knowing in the US

You need tools for your AI agents, but the landscape is crowded. Here are five marketplaces that stand out for different reasons.

The AI Agent Tooling Boom

The AI agent ecosystem is exploding. Developers and businesses are building autonomous systems that need to generate images, scrape websites, send messages, and more. Instead of stitching together dozens of individual APIs, marketplaces are emerging to aggregate these capabilities. Some focus on pre-built agents, others on infrastructure, and a few on raw API access. The key is finding the right fit for your specific use case, whether you're a solo developer or an enterprise team.

How We Evaluated These Marketplaces

We looked at each platform through the lens of a developer or business owner. Service scope matters—how many tools and capabilities are offered. Pricing clarity is crucial; you need to know what you'll pay before you build. We also considered ease of integration, documentation quality, and the overall ecosystem around each marketplace. Each platform has its own strengths, and we've highlighted what stood out for each.

Here's a quick snapshot of the five marketplaces we're covering.

The Five Marketplaces, Closer Look

#1 AWS Marketplace AI Agents and Tools

A screenshot of the AWS Marketplace website.

AWS Marketplace is the heavyweight in this space, offering thousands of agents, tools, and services from AWS Partners. You can deploy on Amazon Bedrock AgentCore, which is a huge plus if you're already in the AWS ecosystem. The catalog includes pre-built agents for code review, sales proposals, and customer support, plus agent tools like MCP servers and knowledge bases. It's a one-stop shop for enterprise-scale AI deployments, with procurement savings and faster deployment times. If you need compliance and security at scale, this is your starting point.

#2 IteraTools — The API for AI Agents

A screenshot of the IteraTools website.

IteraTools is a self-serve API platform that aggregates 140 tools for AI agents, from image generation to WhatsApp messaging. You get prepaid credits and pay per use, with no subscription required—pricing starts at $0.005 per image and $0.001 per web search. It's built for developers who want to integrate AI capabilities directly into their own agents without managing multiple vendors. The curated vertical packs for sales, DevOps, and support are a standout, giving you ready-to-run code. If you want a simple, pay-as-you-go API, this is a strong contender.

#3 AI Agent Store

A screenshot of the AI Agent Store website.

AI Agent Store is a marketplace and directory of over 1,300 agents, with a focus on discovery and monetization. You can launch hosted OpenClaw or Hermes agents from a prompt, using platform credits or your own provider keys. It's more about pre-built agents than raw API tools, which is great if you want to deploy quickly. The platform also includes a news section and a 'Get Matched' feature to find the right solution. For those who want to browse and deploy agents without coding, this is a solid option.

#4 Agent Marketplace (Berkeley)

A screenshot of the Agent Marketplace (Berkeley) website.

This open-source marketplace from UC Berkeley's Gorilla project offers over 150 certified agents from Langchain, Llamaindex, OpenAI, and CrewAI. It's a search engine for LLM agents, with a unified interface and user reviews. You can search for agents and get code to run them, which is ideal for researchers and developers who want to experiment. The focus is on open-source and community-driven, so you'll find cutting-edge agents. If you're into research or want to see what's possible, this is a great resource.

#5 Moveworks AI Agent Marketplace

A screenshot of the Moveworks AI Agent Marketplace website.

Moveworks offers an enterprise-focused AI agent marketplace within its Agent Studio platform. It's designed for building agent plugins and automations, with a strong emphasis on security and governance. You get access to connectors, system triggers, and a robust set of tools for creating custom agents. The marketplace is part of a larger platform that includes an agentic reasoning engine and guardrails. If you're in a large organization that needs controlled AI deployment, this is worth exploring.

How to Choose the Right Marketplace

Start by defining what your agent needs to do. If you need raw API access to many tools, IteraTools is a direct fit. If you're already on AWS, the AWS Marketplace will integrate seamlessly. For quick deployment of pre-built agents, AI Agent Store is your friend. Researchers might prefer the Berkeley marketplace for its open-source ethos. And if you're in a large enterprise with compliance requirements, Moveworks has the governance you need. Consider your budget, technical skill, and long-term scalability.

Automating Your Workflow with These Marketplaces

Imagine your agent scraping a website, generating an image, and sending a WhatsApp message—all in one workflow. With IteraTools, you can do that with a single API key and prepaid credits. For more complex automations, AWS Marketplace offers pre-built agents that can handle code review or customer support. AI Agent Store lets you launch agents that run on your own keys, giving you flexibility. The key is to pick a platform that matches your automation complexity and scale.

The Bottom Line

There's no one-size-fits-all answer. Each marketplace serves a different need, from raw API access to enterprise governance. IteraTools stands out for its simplicity and pay-per-use model, making it a great starting point for developers. AWS Marketplace is the enterprise powerhouse, while AI Agent Store offers quick wins. Berkeley's marketplace is a treasure trove for researchers, and Moveworks brings security to the table. Evaluate your priorities and choose accordingly.