OneSignal
OneSignal is a platform for sending push notifications, emails, in-app messages, and SMS campaigns via a single API, Journey Builder, and a dashboard.
AgentCard object — a capabilities object, a declared protocolVersion, and a well-formed skills array.
An A2A client finds this agent by fetching the well-known path on the provider's own host. That is what makes an agent card different from every other agent artifact in this catalog: it is provider-published by construction — it cannot be derived, generated, or reconstructed on a provider's behalf.
https://documentation.onesignal.com/
· transport HTTP+JSON
non-standard supportedInterfaces
Onesignal onesignal
Use when building customer engagement campaigns, sending push notifications, emails, SMS, or in-app messages, managing user audiences, automating multi-channel journeys, or integrating messaging into applications via REST API or SDKs.
2026-08-13 from https://documentation.onesignal.com/.well-known/agent-card.json,
HTTP 200. The body was saved verbatim and is the sole source for
everything on this page — no field is inferred.
View the captured card.
Providers change what they serve; if this card has moved or changed shape,
the provider profile carries the
current state as of the last build.
Work with this as data
Every agent card here is available over the APIs.io API and to AI agents over MCP. A2A Agent Cards is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.