graph/validation
Graph validation handshake. When a subscription is created or updated, Microsoft Graph sends a `POST` with `validationToken` query parameter that the endpoint must echo back as text/plain within 10 seconds.
Channel address
Operations
Messages
text/plainAbout AsyncAPI
The AsyncAPI specification describes event-driven APIs the way OpenAPI describes request/response APIs. A channel is the named pipe — a webhook URL, a Kafka topic, a WebSocket route, an MQTT subject — that producers and consumers publish or subscribe to. Each channel carries one or more messages with structured payloads, and an operation declares whether a given party sends or receives on that channel.
Browse every event-driven channel on the APIs.io network or compare with the broader Naftiko capability, Agent Skill, and MCP server surfaces of the same providers.