# manifest-yaml.com > Open specification for agent-native identity, permissions, and behavior declaration. ## Overview manifest-yaml.com defines the Manifest YAML format — a YAML-based identity and permissions protocol for autonomous agents. Layer 3 trust substrate for the agentic web. ## Key Pages - [Specification](https://manifest-yaml.com/spec/manifest-yaml-v1.0): Full protocol spec - [ABF Feed](https://manifest-yaml.com/feed/): Agent Broadcast Feed viewer - [Examples](https://manifest-yaml.com/examples/): Reference implementations ## API - ABF Feed: https://manifest-yaml.com/.well-known/abf.json - Registry: https://manifest-yaml.com/api/registry - Discovery: https://manifest-yaml.com/.well-known/agent-discovery.json ## Contact - hello@manifest-yaml.com