PrismPoster Creator Tools for ChatGPT

com.prismposter/creator-tools

Social media frame sizes with sourced safe areas, plus aspect-ratio, bitrate and subtitle tools.

client:ChatGPT transport:streamable-http runtime:npm tools:7

Install PrismPoster Creator Tools in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://www.prismposter.com/api/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs