xapi
xapi is an aggregated API platform for agents offering MCP access to social, blockchain, and AI services. The skill instructs storing API keys to `~/.config/xapi/credentials.json`, registering `https://mcp.xapi.to/mcp?apikey=YOUR_API_KEY` in agent configs, and running shell commands like `curl`/`mcporter`, which grants network, credential, and config-write capabilities.