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Glossary: Agent Tools and MCP

Host addresses (127.0.0.1, 0.0.0.0)

Also written: 127.0.0.1, 0.0.0.0, localhost

127.0.0.1 (localhost) is reachable only from this computer; 0.0.0.0 listens on every network interface. Bind local servers to 127.0.0.1, never 0.0.0.0.

Where the book teaches it

Related terms

Streamable HTTPDNS rebinding