Top AI Agent Marketplaces to Buy and Sell Agents in 2026

What Are AI Agent Marketplaces?

AI agent marketplaces are platforms where developers publish specialized AI agents and users can discover, purchase, or subscribe to agents that solve specific problems. Think of them as app stores for AI assistants. Instead of downloading software, you're accessing intelligent automation tools. The AI agent market is projected to reach $50B by 2030, with over 10,000 custom agents published weekly across major platforms. These marketplaces serve different audiences, from enterprise teams seeking pre-built solutions to developers monetizing custom GPTs and specialized bots. Marketplaces vary widely in their approach. Some are open directories where anyone can list agents for free. Others curate submissions and take revenue cuts. Enterprise platforms focus on compliance and integration with existing business tools. Developer platforms emphasize APIs and customization.

Helpful references: Fast.io Workspaces, Fast.io Collaboration, and Fast.io AI.

Top AI Agent Marketplaces

These platforms lead the AI agent marketplace space based on selection, monetization options, and active user bases. Consider how this fits into your broader workflow and what matters most for your team. The right choice depends on your specific requirements: file types, team size, security needs, and how you collaborate with external partners. Testing with a free account is the fast way to know if a tool works for you.

Consider how this fits into your broader workflow and what matters most for your team. The right choice depends on your specific requirements: file types, team size, security needs, and how you collaborate with external partners. Testing with a free account is the fast way to know if a tool works for you.

1. OpenAI GPT Store

The GPT Store is OpenAI's official marketplace for custom ChatGPT agents. With over 3 million custom GPTs created, it's the largest collection of conversational AI agents.

Key Strengths:

• Built directly into ChatGPT, reaching millions of users
• Low-code builder (no programming required for basic agents)
• Free to publish and distribute
• High discoverability within ChatGPT interface

Limitations:

• No direct monetization yet (revenue-sharing announced but not launched)
• Only available to ChatGPT Plus/Pro subscribers ($20-200/month)
• Limited to conversational use cases

Best For: Developers building conversational agents who want maximum reach. Monetization currently requires external checkout on your own domain.

Monetization Model: None currently. OpenAI has announced a revenue-sharing program based on user engagement metrics (how often users interact with your GPT and how valuable it is to the subscription ecosystem), but implementation details remain unclear. Creators use external Stripe paywalls or freemium models to capture value.

2. Poe (by Quora)

Poe is the only major marketplace with active creator monetization. Developers can set per-message pricing or earn when their bots bring new subscribers.

Key Strengths:

• Active monetization: per-message pricing or subscription revenue sharing
• Multi-model support (Claude, GPT-4, LLaMA, custom models)
• Bot Monetization API for variable pricing based on input/output length or complexity
• Payments through Stripe in USD

Limitations:

• Smaller user base than GPT Store
• Geographic restrictions (monetization available in 17+ countries)
• Requires users to have Poe subscriptions for some features

Best For: Developers who want immediate monetization and support multiple LLMs.

Monetization Model: Two options: (1) Per-message pricing you set yourself, or (2) Subscription revenue sharing where you get 100% of the first monthly payment or 50% of the first annual payment when your bot converts a subscriber.

3. AgentExchange (Salesforce)

Salesforce's marketplace for pre-built Agentforce solutions targets enterprises already using Salesforce CRM.

Key Strengths:

• Enterprise focus with compliance and security built in
• Native Salesforce integration (CRM, Service Cloud, Marketing Cloud)
• Curated partners, not open submission
• Trust layer for enterprise buyers

Limitations:

• Requires Salesforce ecosystem
• Higher barrier to entry for individual developers
• Enterprise sales cycles can be slow

Best For: Software companies selling to enterprises already using Salesforce.

Monetization Model: Partner-negotiated pricing, typically annual contracts or usage-based licensing through Salesforce's billing. Consider how this fits into your broader workflow and what matters most for your team. The right choice depends on your specific requirements: file types, team size, security needs, and how you collaborate with external partners. Testing with a free account is the fast way to know if a tool works for you.

4. AWS Marketplace AI Agents

AWS Marketplace offers thousands of agents and tools from AWS Partners, designed for cloud-native deployment.

Key Strengths:

• Massive enterprise reach (AWS customer base)
• Infrastructure-level integration (deploy agents on AWS)
• Usage-based billing through AWS accounts
• Pre-vetted security and compliance

Limitations:

• High technical barrier to publish
• AWS-focused architecture required
• Enterprise buyers only, not consumer market

Best For: B2B SaaS companies building agents that run on AWS infrastructure.

Monetization Model: Pay-as-you-go through AWS billing. Sellers set hourly rates, usage tiers, or annual contracts. AWS handles invoicing and takes a platform fee. Consider how this fits into your broader workflow and what matters most for your team. The right choice depends on your specific requirements: file types, team size, security needs, and how you collaborate with external partners. Testing with a free account is the fast way to know if a tool works for you.

5. Kore.ai Agent Marketplace

Kore.ai focuses on enterprise conversational AI with 75+ pre-built templates and 100+ agents.

Key Strengths:

• Enterprise-grade compliance (built over a decade)
• Industry-specific agents (banking, healthcare, retail)
• Multi-channel deployment (web, mobile, voice, messaging)
• Pre-built integrations with enterprise software

Limitations:

• Closed ecosystem, limited to Kore.ai platform
• Not open to individual developers
• Enterprise pricing, no free tier

Best For: Enterprises that need ready-to-deploy conversational AI in regulated industries.

Monetization Model: Enterprise licensing through Kore.ai, not a public marketplace for third-party sellers. Consider how this fits into your broader workflow and what matters most for your team. The right choice depends on your specific requirements: file types, team size, security needs, and how you collaborate with external partners. Testing with a free account is the fast way to know if a tool works for you.

6. ServiceNow AI Marketplace

ServiceNow's marketplace offers industry-specific and domain-specific AI agents for workflow automation.

Key Strengths:

• Deep integration with ServiceNow platform (IT, HR, customer service workflows)
• Trusted integrations and applications from established partners
• Focus on business process automation, not just chatbots

Limitations:

• Requires ServiceNow platform
• Enterprise-only audience
• Not accessible to individual developers

Best For: Software vendors building automation tools for ServiceNow customers.

Monetization Model: Partner agreements with ServiceNow, typically annual subscriptions or usage-based billing. Consider how this fits into your broader workflow and what matters most for your team. The right choice depends on your specific requirements: file types, team size, security needs, and how you collaborate with external partners. Testing with a free account is the fast way to know if a tool works for you.

7. Agent.ai

Agent.ai markets itself as a professional network for AI agents, where professionals build, find, and use agents.

Key Strengths:

• Professional networking angle (LinkedIn for agents)
• Focus on business use cases
• Community-driven discovery

Limitations:

• Newer platform, smaller ecosystem
• Monetization model unclear
• Limited public information on marketplace mechanics

Best For: Professionals exploring agent collaboration and discovery.

Monetization Model: Not publicly documented. Consider how this fits into your broader workflow and what matters most for your team. The right choice depends on your specific requirements: file types, team size, security needs, and how you collaborate with external partners. Testing with a free account is the fast way to know if a tool works for you.

8. Agentman

Agentman is a no-code platform to create, buy, and sell AI agents.

Key Strengths:

• No-code builder for non-technical creators
• Marketplace for buying/selling agents
• Lower barrier to entry

Limitations:

• Less established than GPT Store or Poe
• Smaller user base
• Limited information on monetization terms

Best For: Non-developers who want to create and sell simple agents.

Monetization Model: Marketplace supports buying/selling, but fee structure not publicly disclosed. Consider how this fits into your broader workflow and what matters most for your team. The right choice depends on your specific requirements: file types, team size, security needs, and how you collaborate with external partners. Testing with a free account is the fast way to know if a tool works for you.

9. AI Agent Store

AI Agent Store is a directory and marketplace listing specialized AI assistants across categories.

Key Strengths:

• Open directory, easy to list agents
• Free and paid agents
• Category-based discovery

Limitations:

• No direct payment processing
• Primarily a directory, not a platform
• No built-in monetization tools

Best For: Developers wanting free exposure and willing to handle payments separately.

Monetization Model: External. You link to your own payment pages. Consider how this fits into your broader workflow and what matters most for your team. The right choice depends on your specific requirements: file types, team size, security needs, and how you collaborate with external partners. Testing with a free account is the fast way to know if a tool works for you.

10. AI Agents Directory

With 1,300+ AI agents and frameworks, this directory serves as a discovery layer for the agent ecosystem.

Key Strengths:

• Large catalog (1,300+ agents)
• Includes agent frameworks, not just agents
• Free to list

Limitations:

• Directory only, no transactions
• No built-in monetization
• Quality varies widely

Best For: Discovery and research, not sales.

Monetization Model: None. External links only. Consider how this fits into your broader workflow and what matters most for your team. The right choice depends on your specific requirements: file types, team size, security needs, and how you collaborate with external partners. Testing with a free account is the fast way to know if a tool works for you.

How These Marketplaces Compare

Marketplaces fall into three categories based on business model:

Open Directories (AI Agent Store, AI Agents Directory): Free to list, no monetization features. You handle payment and hosting separately. Good for visibility, not revenue.

Developer Platforms (GPT Store, Poe): Built into consumer AI products. GPT Store has reach but no monetization yet. Poe has smaller reach but pays creators. Both serve individual users, not enterprises.

Enterprise Platforms (AWS, Salesforce, ServiceNow, Kore.ai): Target businesses with budgets and compliance needs. Higher revenue potential, but longer sales cycles and technical requirements.

Monetization timeline: Poe pays immediately. AWS and Salesforce require contracts. GPT Store promises future revenue sharing but currently requires external checkout.

Monetization Models and Platform Fees

How you get paid matters as much as where you sell. Here's what each model looks like:

Per-Message Pricing (Poe): You set a price per message. Users pay each time they interact with your bot. The Bot Monetization API lets you charge more for complex queries or long outputs. Monthly payments arrive in your Stripe account.

Subscription Revenue Sharing (Poe): When your bot convinces someone to subscribe to Poe, you earn 100% of their first monthly payment or 50% of their first annual payment. This rewards bots that drive platform growth.

External Checkout (GPT Store): You embed Stripe paywalls on your own landing pages and redirect users from your GPT. Some creators build freemium GPTs that offer sample outputs and upsell to paid tools hosted externally.

Enterprise Licensing (AWS, Salesforce, ServiceNow): Negotiated annual contracts or usage-based billing. AWS takes a platform fee (typically 20-30% depending on product category). Salesforce and ServiceNow terms vary by partnership agreement.

No Monetization (Directories): AI Agent Store and AI Agents Directory don't handle transactions. You link to your website or SaaS product and manage payments yourself.

Platform fees: Poe and AWS disclose fees. GPT Store's future revenue-sharing percentage is unknown. Enterprise platforms negotiate terms individually.

Where Agent Builders Need Infrastructure

Regardless of which marketplace you choose, AI agents need persistent storage to function. Agents that generate reports, process documents, or manage client files can't rely on ephemeral storage that disappears after each session. Fast.io provides storage built for AI agents. Agents sign up for their own accounts with 50GB free storage and 5,000 monthly credits. No credit card required, no trial period, no expiration.

Why agents need dedicated storage:

• Generate PDFs, spreadsheets, or reports for users
• Process incoming documents from clients
• Build data rooms or client portals, then transfer ownership to humans
• Maintain organized workspaces across sessions

Fast.io's MCP server offers 251 tools via Streamable HTTP and SSE, the most comprehensive file operations available through Model Context Protocol. Intelligence Mode adds built-in RAG. Toggle it on a workspace and files are auto-indexed for semantic search and AI chat with citations. Agents create organizations, workspaces, and shares, then transfer ownership to human clients while keeping admin access. This supports agent-built deliverables like branded portals, data rooms, or organized project folders handed off to clients. For developers building agents to sell on marketplaces: your agent needs somewhere to store files, manage uploads from users, and deliver outputs. Fast.io treats agents as first-class citizens, not second-class API users.

Choosing the Right Marketplace for Your Agent

Match your agent to the marketplace based on your goals:

Want immediate monetization? Use Poe. It's the one of the few platforms paying creators today.

Want the biggest audience? Publish on GPT Store. The user base is massive, but plan to monetize externally until OpenAI launches revenue sharing.

Building for enterprises? Target AWS Marketplace if your agent runs on cloud infrastructure, or Salesforce/ServiceNow if you works alongside their platforms.

Testing demand? List on AI Agent Store or AI Agents Directory for free exposure while you validate product-market fit.

Supporting multiple LLMs? Poe lets users choose models. Fast.io works with Claude, GPT-4, Gemini, LLaMA, and local models without locking you to one AI provider.

Need discoverability? GPT Store and Poe surface agents in-app. Directories rely on search and word-of-mouth. Don't limit yourself to one marketplace. Many developers publish the same agent on GPT Store, Poe, and directories simultaneously to maximize distribution.