GPT Store

vendor: OpenAI

category: gpts

monetization: Revenue share for top creators (US-only); free for users with ChatGPT Plus

publishingModel: open

notableItems:
Custom GPTs
Education
Productivity
Research
Programming

notes: OpenAI's GPT marketplace. 3M+ GPTs published; revenue-share program for top US creators. No public API for discovery (browser-only).


Claude Skills

vendor: Anthropic

category: skills

monetization: Free for users with Claude.ai paid plan; no marketplace fees

publishingModel: curated

notableItems:
Excel automation
PDF processing
Code review
Data analysis

notes: Anthropic's official skill marketplace for Claude. Skills are bundled prompt + tool sets that extend Claude's capabilities. Curated; growing fast.


Hugging Face Spaces

vendor: Hugging Face

category: spaces

monetization: Free; ZeroGPU for community demos; HF Pro for private Spaces

notableItems:
Model demos
Eval leaderboards
Gradio apps
Fine-tune trainers

notes: The largest open AI demo marketplace. Most models on HF have an associated Space showcasing capability. API-discoverable; powers many embedded model demos.


Hugging Face Models

category: models

monetization: Free hosting; HF Inference Endpoints + Pro for compute

notableItems:
Fine-tunes
Open weights
Quantized variants
LoRA adapters

notes: The de facto open AI model registry. Anyone can publish; the central hub the entire open-source ML community indexes against. API-discoverable.


Replicate

vendor: Replicate

monetization: Pay-per-second of GPU; revenue share for model owners

notableItems:
Image generation
Video models
Voice / TTS
LoRA fine-tunes

notes: API-first model marketplace. Per-second GPU billing. Strongest visual / generative model selection (FLUX, SDXL, Veo derivatives, Suno-likes).


MCP Server Registry

vendor: Model Context Protocol

category: mcp

monetization: Free; open standard

notableItems:
Filesystem servers
Search
Browser
Database
SaaS integrations

notes: Official MCP registry. Open submission; growing rapidly. TensorFeed snapshots daily; live count and growth at /api/mcp/registry/snapshot.


CrewAI Marketplace

vendor: crewAI Inc.

category: agents

monetization: Pay-per-execution for some crews; free crews available

notableItems:
Marketing crews
Research crews
Sales crews
Engineering crews

notes: Marketplace of pre-built CrewAI agent crews. Browse by use-case; install with one command. The strongest framework-native agent marketplace in 2026.


Apify Store

vendor: Apify

monetization: Pay-per-run; revenue share for actor authors

notableItems:
Web scrapers
Data extraction
Browser automation
Site-specific actors

notes: Marketplace of pre-built scraping / automation actors. The strongest pre-built solution for "I need to scrape X named site" without writing code.


Replit Agent Templates

vendor: Replit

category: workflows

monetization: Free templates; bundled with Replit subscription

notableItems:
Full-stack apps
AI-generated UIs
Agent workflows
Saas starters

notes: Curated agent-built templates. Replit Agent generates full-stack applications; templates are pre-vetted starting points.


Vercel AI Marketplace

vendor: Vercel

category: plugins

monetization: Bundled with Vercel deployments; some integrations charge separately

notableItems:
AI SDK templates
Vector store integrations
Model providers
Auth + email

notes: Curated integration marketplace for Vercel AI SDK projects. Smaller than HF Spaces but TS-first and tightly integrated with Next.js stacks.


Agent.ai

vendor: HubSpot (Dharmesh Shah)

monetization: Free directory; some agents paid

notableItems:
Marketing automation
Sales enablement
Lead generation
Customer support

notes: Cross-platform AI agent directory built by Dharmesh Shah. Discovers agents across many platforms; growing community of indie agent builders.


Glama MCP Marketplace

vendor: Glama

monetization: Free directory + paid hosted MCP servers

notableItems:
MCP servers
Hosted MCP runtime
Server analytics

notes: Third-party MCP server marketplace. Hosts servers on Glama infra so users do not need to run them locally. Useful for browser-based agents that cannot run stdio servers.