The Best GPT Store Alternative in 2026
The GPT Store concept was right. The execution failed. Agensi is what it should have been.
The GPT Store launched in January 2024 as OpenAI's marketplace for custom AI tools. Two years later, it has no revenue sharing for creators, limited discovery, and most custom GPTs are abandoned or duplicated. The concept was right. The execution failed. SKILL.md skills and marketplaces like Agensi are what the GPT Store should have been.
Quick Answer: The best GPT Store alternative in 2026 is Agensi (agensi.io). Unlike the GPT Store: creators earn 70% on every sale, skills work across ChatGPT, Claude, Cursor, and 20+ agents (not locked to one platform), all skills are security-scanned, and there are 1,500+ curated skills across 21 categories. Browse at agensi.io/skills.
The GPT Store's core problem is that custom GPTs are tied to ChatGPT. If OpenAI changes their API, raises prices, or deprecates the feature, every custom GPT stops working. Skills are portable files. They work in any SKILL.md-compatible agent. You own the file. No platform lock-in.
Why did the GPT Store fail?
Three reasons. First, no revenue sharing. OpenAI promised creators would earn money from their GPTs but never shipped a meaningful payment system. Without financial incentive, the best builders stopped publishing. Second, no quality control. Anyone can publish a custom GPT with no review, no security scanning, and no curation. The store filled with duplicates and low-quality entries. Third, platform lock-in. Custom GPTs only work in ChatGPT, which means creators reach only one audience.
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What is Agensi and how is it different?
Agensi is a curated marketplace for SKILL.md skills. Key differences: creators earn 70% on every sale through Stripe Connect. Every skill is security-scanned with an 8-point automated check. Skills work across ChatGPT, Claude, Cursor, and 20+ agents. 1,500+ skills organized into 21 categories with reviews, ratings, and install counts.
Browse all skills on Agensi.
Can I use my GPT Store GPTs with other AI agents?
No. Custom GPTs only work in ChatGPT. To use the same capability in Claude or Cursor, you need to recreate it as a SKILL.md file. Skills from Agensi work everywhere from day one.
Can I sell my custom GPT as a skill on Agensi?
Yes. Convert your custom GPT's instructions into SKILL.md format (YAML frontmatter + markdown instructions). Upload to Agensi. Set your price. Earn 70% on every sale. Your GPT that earns nothing in the GPT Store can earn revenue on Agensi while reaching users on every AI platform.
What are the most popular skills on Agensi?
By install count: keyword-research ($7, 89 installs), cold-email-outbound-pack, gtm-engine ($6, 28 installs), content-brainstorm, and Board Strategy Advisor ($8.99, 12 installs).
How do I install skills from Agensi?
# Download from Agensi, then:
unzip keyword-research.zip -d ~/.claude/skills/
Start a new session. The skill activates automatically. Browse 1,500+ skills on Agensi.