Promptster for Claude.ai
io.github.promptster-dev/promptster
Test and compare prompts across any AI provider. Bring your own keys.
client:Claude.ai
transport:streamable-http
Install Promptster in Claude.ai
Settings → Connectors → Add custom connector
https://www.promptster.dev/mcpClaude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs