Flow · Schema
Event
A Flow blockchain event emitted during transaction or block execution.
BlockchainNFTGamesDeFiLayer 1CadenceSmart ContractsWeb3
Properties
| Name | Type | Description |
|---|---|---|
| type | string | The qualified event type identifier. |
| transaction_id | string | A 32-byte unique identifier for an entity. |
| transaction_index | string | |
| event_index | string | |
| payload | string | Base64-encoded event payload in JSON-Cadence interchange format. |
JSON Schema
{
"$schema": "http://json-schema.org/draft-07/schema#",
"$id": "https://raw.githubusercontent.com/api-evangelist/flow-blockchain/main/json-schema/event.json",
"title": "Event",
"description": "A Flow blockchain event emitted during transaction or block execution.",
"type": "object",
"required": ["type", "transaction_id", "transaction_index", "event_index", "payload"],
"properties": {
"type": {
"description": "The qualified event type identifier.",
"type": "string"
},
"transaction_id": {
"description": "A 32-byte unique identifier for an entity.",
"type": "string",
"format": "hexadecimal",
"pattern": "[a-fA-F0-9]{64}"
},
"transaction_index": {
"type": "string",
"format": "uint64"
},
"event_index": {
"type": "string",
"format": "uint64"
},
"payload": {
"type": "string",
"format": "byte",
"description": "Base64-encoded event payload in JSON-Cadence interchange format."
}
}
}
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/event"
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.