JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "#/components/schemas/EventType",
"title": "EventType",
"description": "SSE event type discriminator",
"enum": [
"response.created",
"response.in_progress",
"response.completed",
"response.failed",
"response.output_item.added",
"response.output_item.done",
"response.output_text.delta",
"response.output_text.done",
"response.reasoning.started",
"response.reasoning.search_queries",
"response.reasoning.search_results",
"response.reasoning.fetch_url_queries",
"response.reasoning.fetch_url_results",
"response.reasoning.stopped"
],
"type": "string"
}
Work with this as data
Every JSON Schema here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for schemas
4 MCP tools reach this
find_json_schemasBrowse and filter every JSON Schema in the catalog.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This JSON Schema
curl "https://apis.io/api/v1/json-schemas/perplexity-eventtype"
All schemas
curl "https://apis.io/api/v1/json-schemas?limit=25"
Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.