Properties
| Name | Type | Description |
|---|---|---|
| role | string | The role of the tool call result in the conversation. |
| toolCallId | string | The ID of the tool call. |
| name | string | The name of the tool that returned the result. |
| result | string | The result of the tool call in JSON format. |
| time | number | The timestamp when the message was sent. |
| secondsFromStart | number | The number of seconds from the start of the conversation. |
| metadata | object | The metadata for the tool call result. |
| warnings | array | Warnings raised for this tool call result, e.g. when the response is larger than recommended for voice AI context windows. |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "#/components/schemas/ToolCallResultMessage",
"title": "ToolCallResultMessage",
"type": "object",
"properties": {
"role": {
"type": "string",
"description": "The role of the tool call result in the conversation."
},
"toolCallId": {
"type": "string",
"description": "The ID of the tool call."
},
"name": {
"type": "string",
"description": "The name of the tool that returned the result."
},
"result": {
"type": "string",
"description": "The result of the tool call in JSON format."
},
"time": {
"type": "number",
"description": "The timestamp when the message was sent."
},
"secondsFromStart": {
"type": "number",
"description": "The number of seconds from the start of the conversation."
},
"metadata": {
"type": "object",
"description": "The metadata for the tool call result."
},
"warnings": {
"description": "Warnings raised for this tool call result, e.g. when the response is\nlarger than recommended for voice AI context windows.",
"type": "array",
"items": {
"$ref": "#/components/schemas/ToolCallResultMessageWarning"
}
}
},
"required": [
"role",
"toolCallId",
"name",
"result",
"time",
"secondsFromStart"
]
}
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/vapi-toolcallresultmessage"
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.