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Pricing and credits for the ChainGPT Claude Skill, including free testing with the mock server

Updated May 31, 2026, 02:08 PM

This article covers what the ChainGPT Claude Skill costs and how to test it for free.

The plugin is free

The ChainGPT Claude Skill plugin is free and MIT licensed. You can install and use it at no cost.

Credits power the product tools

ChainGPT product tools (chat, NFT generation, contract auditing, news) require credits. Buy credits at https://app.chaingpt.org/addcredits. The rate is 1 CGPTc = $0.01 USD, so 1,000 credits costs $10. Credits never expire once purchased.

Test for free with the mock server

You can develop and test for free without spending credits using the zero-credit mock server, which returns realistic responses:

cd mock-server
npm install
npm run dev

The mock server starts on localhost:3001. Then set CHAINGPT_BASE_URL=http://localhost:3001 and all API calls route to the local mock server at zero cost.

Code generation without credits

The skills also work standalone for code generation without the MCP server running. Claude Code reads the SKILL.md and reference docs to generate integration code, templates, and configurations. Live API calls are what require the MCP server and credits.

Next step: buy credits at https://app.chaingpt.org/addcredits